Udulutsch Et Al 2013 Adenocalymma

8/12/2019 Udulutsch Et Al 2013 Adenocalymma

1/10

Four new species ofAdenocalymma(Bignoniaceae) and a key to thespecies from southeastern Brazil

Renata Giassi Udulutsch, Marco Antonio de Assis and Pedro Dias

R. G. Udulutsch ([email protected]), Depto de Cincias Biolgicas, Univ. Estadual Paulista, BR19.806-900 Assis, SP, Brazil. M. A. deAssis, Depto de Botnica, Inst. de Biocincias, Univ. Estadual Paulista, Caixa Postal 199, BR13.506-900 Rio Claro, SP, Brazil. P. Dias, Labde Biologia Evolutiva de Plantas, Inst. de Biodiversidade e Florestas, Univ. Federal do Oeste do Par, BR68.135-110 Santarm, PA, Brazil.

Four new species of Adenocalymma(Bignoniaceae, Bignonieae) from southeastern Brazil are described and illustrated:

A. aurantiacum, characterized by dark orange and infundibuliform corolla; A. cinereum, characterized by shrubby habit,greyish inflorescence, infundibuliform corolla, and exserted stamens; A. gibbosum, characterized by gibbous and orangecorolla and an inflorescence with dendritic trichomes; andA. sessile, characterized by sessile leaves and gibbous corolla.A discussion on the relationships of the new taxa and a key to all 29 species ofAdenocalymmareported from southeasternBrazil are provided.

AdenocalymmaMart. ex Meisn. nom. cons. (McNeill et al.2006), with 47 species, is a neotropical genus and one ofthe largest genera of the tribe Bignonieae (Bignoniaceae).It occurs from Mexico to northern Argentina. It is widelydistributed in Brazil and is represented in all vegetational

types, including rain forests, seasonal semideciduousforests, and savanna formations (Udulutsch et al. 2009).

Adenocalymma is morphologically distinguished fromother genera of the tribe Bignonieae by the presence of bracts,bracteoles and calyx bearing pateliform nectaries in mostspecies, leaves with 2 or 3 leaflets, simple (for the clim-bing species) tendrils, axillary shoots with woody and oftennectariferous prophylls, chartaceous calyx, racemes neverblackened in herbarium specimens, and cylindrical fruitsof most species (Udulutsch 2008, Udulutsch et al. 2009).

Among the genera of the tribe Bignonieae, MemoraMiers is morphologically most similar (Sandwith 1937) toAdenocalymma. However, although most species ofMemora,as well asAdenocalymma,have prophylls, bracts, bracteoles,and calyx bearing pateliform nectaries, members ofMemoracan easily be distinguished from those of Adenocalymmaby the presence of 23-ternate leaves (in some species theapical leaves can be 23-foliate), usually bifid tendrils, axil-lary shoots with foliaceous and not woody prophylls, inflo-rescence drying black, spathaceous and membranaceouscalyx in most species, and fruit dorsi-ventrally flattened andplane (only four species of Adenocalymma have flattenedfruits: A. fruticosumA. H. Gentry, A. hypostictumBureau& K. Schum., A. saeulenseA. H. Gentry, and A. uleanumKraenzl.).

From a phylogenetic standpoint, a recent study of thewhole tribe Bignonieae by Lohmann (2006) included fivespecies of Adenocalymma, which, together with the mono-typic genus Sampaiella and the clade formed by five spe-cies of Memora, form a clade that is supported by 91% ofparsimony bootstrap and 100% of Bayesian posterior prob-ability. However, the relationship between Adenocalymmaand Memora is unresolved and Adenocalymma's status as amonophyletic group is thus still unknown.

Te first author recently prepared a taxonomic revi-sion of Adenocalymma, including descriptions of all species(Udulutsch 2008), and the discovery of the four new speciespresented here is a result of these studies.

Material and methods

Only fully developed structures were used for the morpho-logical description. erms used to describe two-dimensionalshapes follow Hickey (1973), and terms used to describeindumentum follow Payne (1978). Inflorescence type isaccording to Weberling (1989).

Adenocalymma aurantiacumUdulutsch & Assis sp.nov. (Fig. 1)

Species nova ex affi nitate Adenocalymmatis gibbosi Udulutsch &Assis et A. salmonei J. C. Gomes, a ambobus corolla infundibu-liforme et staminibus inclusis bene differt.

Nordic Journal of Botany 31: 176185, 2013doi: 10.1111/j.1756-1051.2012.01609.x,

2013 Te Authors. Nordic Journal of Botany 2013 Nordic Society OikosSubject Editor: Bertil Sthl. Accepted 13 April 2012

176


2/10

Figure 1.Adenocalymma aurantiacumsp. nov. (a) flowering shoot, (b) axillary shoot prophyll, (c) bract, (d) first order bracteole, (e) secondorder bracteole, (f ) disc and ovary, (g) ovary, longitudinal section showing two series of ovules, (h) fruit, (I) seed. (a)(g) from Stehmanns.n. (BHCB 19328), (h)(i) from Andrade 246. Line illustrations by R. G. Udulutsch.

177


3/10

Type: Brazil, Esprito Santo: Linhares, CVRD NaturalReserve, MME road, km 2.1, RFL 133, 3 Oct 2000 (fl),D. A. Folli 3701 (hototype: HRCB, isotype: CVRD).

EtymologyTe epithet aurantiacum [golden] is an allusion to theintense color of the corolla, which is strongly orange.

DescriptionLiana; branchlets drying light brown to greyish, withlenticels, puberulous from white to yellowish, simpletrichomes; axillary shoot with persistent prophylls, 4.07.51.23.1 mm, ovate to oblong, falcate, with acute toacuminate apex and inconspicuous venation, puberulous,

with 311 conspicuous nectar glands. Leaves petiolate;petiole 0.94.9 cm long, semiterete, puberulous; lateralpetiolules 0.41.5 cm long, the terminal petiolule 2.14.1 cm long, semiterete, swollen at apex, puberulous; ten-dril puberulous at base, glabrescent; leaflet blades dryingconcolored, opaque, chartaceous, margin flat and non-cartilaginous, glabrous except for short trichomes on mid-vein, with prominent venation on both sides; lateral leaflets5.515.12.15.2 cm, ovate to elliptic, with acute toacuminate, mucronulate apex, and asymmetric, roundedbase; terminal leaflet 5.615.53.36.5 cm, elliptic, withacute to acuminate, mucronulate apex, and symmetric,acute to obtuse base. Inflorescence a lateral raceme,congested, drying brown to greyish; peduncule 0.72.0 cmlong, rachis 3.48.0 cm long, puberulous, trichomes whiteto yellowish, simple, nectaries lacking; bracts in 13 pairs,caducous, 2.84.91.12.0 mm, ovate, acuminate atapex, puberulous, with (0)15 glands at apex; first orderbracteoles caducous, 0.61.9(4.2, only with anomalousgrowth)0.41.7 cm, symmetric, elliptic to obovate,cymbiform, obtuse at apex and with parallelodromousvenation, puberulous, with (0)14 glands at apex; secondorder bracteoles persistent, 0.31.0(1.6)0.20.7 cm,symmetric, obovate, cymbiform, acute at apex, with par-allelodromous venation, puberulous, with 02 glands atapex. Flowers pedicelate; pedicel 0.30.9 cm long, puber-ulous; calyx 0.51.40.71.0 cm, campanulate, lobes1.52.5 mm long, triangular, puberulous outside, papilloseinside, with 14 irregularly distributed nectar glands perlobe; corolla dark orange, infundibuliform, with conspicu-ous glands distributed in longitudinal rows at the base ofthe lobes and at the mouth of tube; corolla lobes 1.01.60.81.4 cm, rounded to obovate, rounded at apex, puber-ulous on both sides; corolla tube 4.66.5 cm long, 1.6

2.1 cm wide at the mouth, the cylindric base of the tube0.81.30.30.5 cm, tube puberulous outside, except forthe base, glabrous inside but glandular-tomentose at thelevel of stamen insertion. Stamens as long as or shorter(included) than the corolla throat; the longer filaments3.64.6 cm long; the shorter filaments 2.73.8 cm long,glabrous; anthers 4.44.6 mm long; staminode 3.56.5 mmlong, lanceolate at apex, membranaceous; disc 1.42.92.94.5 mm. Ovary 3.04.31.51.8 mm, tetragonalin cross section, glabrous, rarely papillose at apex, withnectar glands at apex, distributed in longitudinal rows,24 per row, two rows per carpel; ovules biseriate, 812

per series, style 4.15.2 cm long, glabrous, stigma 2.54.01.31.8 mm, ovate to oblong. Fruit drying brown toolive, cylindric, wingless; valves 14.9 cm long, 4.3 cm wide,3 mm thick, rounded at apex; midvein sulcate, puberulous,

with conspicuous and salient nectar glands; seeds wingless,drying light brown, 1.42.1 cm long, 1.82.4 cm wide,1.11.3 cm thick; hilum irregularly shaped, pale brown,1.01.41.62.2 cm.

Distribution and habitatAdenocalymma aurantiacum is known from the states ofMinas Gerais and Esprito Santo (Fig. 2), southeasternBrazil. It has been found in seasonal semideciduous and

Atlantic forests. Flowering specimens were collected inJune, July, September, October and December, fruiting inOctober.

Similar speciesAdenocalymma aurantiacum is one of the few species ofthe genus with a strongly orange corolla. Among theBrazilian species that have corolla with nectar glands, theorange color of the corolla is shared only with A. gibbosum

Udulutsch & Assis (described in this paper), andA. salmoneum J. C. Gomes. However, the last two specieshave gibbous corolla, with very small (4 mm) lobes,and exserted stamens. Adenocalymma aurantiacum differsby having infundibuliform corolla, with lobes larger than1 cm, and stamens as long as or shorter (included) thanthe corolla throat. Another species that has stronglyorange corolla is A. magdalenense Dugand, however, thisspecies occurs only in Colombia and, in addition, has bila-biate corolla, a feature that allows this species to be easilyrecognized.

Additional specimens examined (paratypes)

Brazil. Esprito Santo: Linhares, CVRD Natural Reserve,MME road, km 0.8, RFL-133/88, 30 Sep 2004 (fl), G. S.Siqueira 112 (CVRD, HRCB); So Mateus, BR-381 high-

way, km 6, from So Mateus to Nova Vencia, 4 Dec 1994

Figure 2. Known distribution of Adenocalymma aurantiacum(circles), A. cinereum (triangle), A. gibbosum (star), and A. sessile(squares).

178


4/10

rows at the base of lobes and mouth of tube; corolla lobes483.57.0 mm, rounded, retuse at apex, puberulous onboth sides; corolla tube 3.14.4 cm long, 0.51.2 cm wideat the mouth, the cylindric base of the tube 0.51.20.30.4 cm, puberulous outside, except for the base, gla-brous inside but glandular-tomentose at the level of stameninsertion. Stamens exserted, the longer filaments 3.34.5 cmlong, the shorter filaments 2.93.9 cm long, glabrous;anthers 3.03.2 mm long; staminode 1.1 cm long, with

elliptic apex, membranaceous; disc 1.31.72.13.1 mm.Gynoecium glabrous; ovary 2.23.51.11.9 mm, cylin-dric, with irregulary distributed nectar glands; ovules bise-riate, 78 per series; style 3.74.9 cm; stigma 2.53.00.91.0 mm, elliptic. Fruit drying light brown to gray, ellip-soid, wingless; valves 7.27.6 cm long, 3.03.1 cm wide,1.01.5 mm thick, rounded at apex, with inconspicuousmidvein, puberulous, with conspicuous and salient nectarglands; seeds wingless, drying brown, 1.61.8 cm long, 1.51.7 cm wide, 0.80.9 cm thick; hilum irregularly shaped,pale brown to yellow, 0.91.11.61.7 cm.

Distribution and habitat

Adenocalymma cinereum occurs in Minas Gerais (Fig. 2).It is probably endemic to Rio Doce State Park, in Marli riacounty. It was found in seasonal semideciduous forest, usu-ally associated with the Anibal lagoon edge. Flowering speci-mens were collected between August and October, fruitingin September and October.

Similar speciesApart from Adenonalymma cinereum, another three specieshave shrubby habit and exserted stamens: A. grandifoliumMart. ex DC.,A. sessileUdulutsch & Assis (described in thispaper), and A. subsessilifolium DC. Tose species can bedistinguished from A. cinereum by having sessile leaves

(A. sessileand A. subsessilifolium), ferruginous indumentumin the inflorescence (A. grandifoliumandA. subsessilifolium),and gibbous corolla (A. sessile). InA. cinereumthe leaves arepetiolate, the inflorescences have grayishwhite indumen-tum, and the corolla is infundibuliform.

Additional specimens examined (paratypes)Brazil. Minas Gerais: Marliria, Rio Doce State Park, 27 Oct1993 (fr), L. V. Costa s.n. (BHCB 27214); Rio Doce StatePark, Anibals road, 13 Aug 1998 (fl), R. L. C. Bortoluzzi244 (VIC); Rio Doce State Park, Anibals road, 24 Oct 1996(fl), V. V. Scudeller 626 (VIC); Rio Doce State Park,restaurants road, 1 Aug 1996 (st), V. V. Scudeller 556

(VIC); Rio Doce State Park, Anibal Lagoon, 19 Sep 1975(fl), E. P. Heringer 15063 (UB); Rio Doce State Park,

Anibal Lagoon, 26 Sep 1995 (fl, fr), V. V. Scudeller 129(VIC); Rio Doce State Park, tracks Anibal, 21 Sep 2004(fl), F. Ferreira s.n. (VIC 29840).

Adenocalymma gibbosumUdulutsch & Assis sp. nov.(Fig. 4)

Adenocalymmati salmoneoJ.C. Gomes affi nis, sed inflorescentiaab trichomata dendritica tomentulosa differt.

(fl), J. R. Pirani et al. 3370 (NY, SPF). Minas Gerais:Almendara, 15 Jun 1986 (fl), G. Hatschbach 50422(MBM); Caratinga, 11 Oct 1987 (fr), . R. Andrade 246(BHCB); Macednia farm, Cenibra-Ipaba, s.a. (fl), J. R.Stehmann s.n. (BHCB 19328); Itueta, UHE Aimors,

Adolfo Shumaker farm, 10 Jul 1997 (fl), E. ameiro Neto2421 (BHCB); efilo Otoni, So Marco farm, 29 Jun1968 (fl), R. P. Belm 3782 (NY). s.a. (fl), M. Motta s.n.(R 197926).

Adenocalymma cinereumUdulutsch & Assis sp. nov.(Fig. 3)

Species nova ex affi nitate Adenocalymmatis sessilis Udulutsch& Assis et A. subsessilifolii DC., a ambobus foliis petiolatiset inflorescentia cinerea differt.

Type:Brazil, Minas Gerais: Marliria, Rio Doce State Park,26 Nov 1995 (fl, fr), V. V. Scudeller 134 (holotype: VIC).

EtymologyTe epithet cinereum [ash-gray] is an allusion to the color

of the inflorescence, which is due to the grayishwhitetrichomes.

DescriptionShrub, 34 m tall; branchlets drying browngreyish, withsparse lenticels, puberulous, glabrescent; trichomes white,dendritic; prophylls of axillary shoot persistent, 691.82.1 mm, lanceolate to oblong, acute at apex, withinconspicuous venation, puberulous, glabrescent, with 14irregularly distributed conspicuous nectar glands. Leavespetiolate; petiole 1.33.9 cm long, semiterete, puberulous,glabrescent; lateral petiolules 0.82.5 cm long; terminalpetiolule 2.14.4 cm long, semiterete, swollen at apex,

puberulous, glabrescent. endrils absent. Leaflet bladesdrying discolored, adaxial side darker than the abaxial,opaque, chartaceous; lateral leaflets 13.628.81.55.2 cm; terminal leaflet 12.529.92.46.6 cm, narrowlyelliptic to oblanceolate, acuminate and mucronulate atapex, and with symmetric, acute base, with margin flat andnon-cartilaginous, and midvein sulcate adaxially and otherveins prominent on both sides, glabrous. Inflorescence alax lateral raceme, drying greyish; peduncule 0.71.3 mmlong; rachis 3.98.7 cm long, puberulous from white togray, dendritic trichomes; nectaries lacking. Bracts in 3 pairs,persistent, 2.03.50.81.8 mm, ovate, acute at apex,puberulous, with 12 irregularly distributed glands; first

order bracteoles caducous, 4.07.22.53.5 mm, symmet-ric, ovate, cymbiform, acute at apex, with prominent mid-vein, puberulous, with 04 irregularly distributed glands;second order bracteoles caducous, 2.55.20.92.8 mm,symmetric, ovate to elliptic, acute at apex, with promi-nent midvein, puberulous, with 12 irregularly distributedglands. Flowers pedicelate; pedicel 0.41.0 cm long,puberulous; calyx 0.61.00.40.7 cm, campanulate,puberulous outside, papillose inside, with 13 irregularlydistributed nectar glands per lobe; corolla yellow, infundibu-liform, with conspicuous glands distributed in longitudinal

179


5/10

Figure 3.Adenocalymma cinereumsp. nov. (a) flowering shoot, (b) axillary shoot prophyll, (c) bract, (d) first order bracteole, (e) second orderbracteole, (f) disc and ovary, (g) ovary, longitudinal section showing two series of ovules, (h) fruit, (i) seed. (a)(g) from Scudeller 134,(h)(i) from Costa M-12-5. Line illustrations by R. G. Udulutsch.

Type:Brazil, Minas Gerais, Caet, Serra da Piedade, 29 Sep1993 (fl), J. A. Lombardi 449 (holotype: BHCB, isotype:UEC).

EtymologyTe epithet gibbosum is an allusion to the gibbous corolla.

DescriptionLiana; branchlets drying light brown, with lenticels,puberulous to tomentose from white to yellowish, bifurcateto dendritic trichomes. Prophylls of axillary shoots persis-tent, 4.88.11.21.5 mm, lanceolate, acute to acumi-nate at apex, with inconspicuous venation, tomentulose to

180


6/10

Figure 4.Adenocalymma gibbosumsp. nov. (a) flowering shoot, (b) axillary shoot prophyll, (c) bract, (d) first order bracteole, (e) secondorder bracteole, (f) disc and ovary, (g) ovary, longitudinal section showing two series of ovules, (h) fruit, (i) seed. (a)(g) from Lombardi449, (h)(i) from Lombardi 654. Line illustrations by R. G. Udulutsch.

tomentose, with 45 irregularly distributed conspicuousnectar glands. Leaves peciolate; petiole 1.44.8 cm long,semiterete, puberulous to tomentose; lateral petiolules0.61.5 cm long; terminal petiolule 1.53.1 cm long,semiterete, slender at apex, puberulous to tomentose.endril tomentulose at base. Leaflet blades drying concol-ored, opaque, chartaceous, with flat and non-cartilaginousmargin, adaxial side puberulous, with more trichomes on

midvein and secondary veins, tomentulose to tomentoseabaxially, with prominent venation on both sides; lateralleaflets (5.9)8.514.3(1.8)2.44.9 cm, lanceolateto elliptic, acute to obtuse at apex, mucronulate, slightlyasymmetric, obtuse to rounded at base; terminal leaflet10.913.53.74.8 cm, (apex absent in the materialsexamined), lanceolate to elliptic, symmetric, obtuse torounded at base. Inflorescence a lax lateral raceme, drying

181


7/10

olive-brown; peduncule 1.12.9 cm long; rachis 5.711.5 cm long, tomentulose from yellow, dendritic trichomes;nectaries lacking. Bracts in 13 pairs, caducous, 0.80.2 cm, spatulate, acute at apex, with inconspicuous vena-tion, tomentulose, with 8 irregularly distributed nectarglands; first order bracteoles caducous, 1.92.50.91.2 cm, symmetric, obovate, cymbiform, acuminate atapex, with parallelodromous venation, puberulous, with45 nectar glands distributed in 2 longitudinal rows; sec-

ond order bracteoles persistent, 0.61.10.20.4 cm,symmetric, obovate, acuminate at apex, with parallelodro-mous venation, puberulous, with 02 irregularly distrib-uted nectar glands. Flowers pedicelate; pedicel 0.40.9 cmlong, tomentulose; calyx 1.21.50.70.9 cm, infundibu-liform. Calyx lobes 1.02.5 mm, triangular, puberulousoutside, tomentulose at base, papillose inside, with 48nectar glands distributed in longitudinal rows. Corollaorange, gibbous, with conspicuous glands distributed inlongitudinal rows at the base of lobes and mouth of tube;corolla lobes 3.54.03.03.5 mm, rounded, rounded atapex, slightly apiculate, puberulous on both sides; corollatube 2.93.8 cm long, 0.61.0 cm wide at the mouth,

the cylindric base of the tube 0.81.00.30.4 cm, tubepuberulous outside, except for the base, glabrous insidebut glandular-tomentose at the level of stamen insertion.Stamens exserted; longer filaments 2.53.1 cm long; shorterfilaments 2.02.5 cm long, glabrous; anthers 2.93.1 mmlong; staminode 4.55.7 mm long, oblong at apex, mem-branaceous; disc 0.91.42.62.8 mm. Gynoecium gla-brous; ovary 3.33.81.01.2 mm, cylindric, with smallscores glandular at the surface, lustrous; ovules biseriate,1011 per series; style 3.23.3 cm long; stigma 2.71.6 mm, ovate. Fruit drying brown, cylindric, wingless;valves 17.9 cm long, 3.8 cm wide, 2.1 mm thick, acumi-nate at apex, rugulate with conspicuous and salient nectar

glands on the surface, with sulcate midvein, tomentulose;seeds with very small wings, wings 25 mm wide, seedsdrying yellowishbrown, 1.41.9 cm long, 1.62.1 cm wide,0.91.4 cm thick, pyramidal; hilum reniform, pale brown,0.81.01.52.1 cm.

Distribution and habitatAdenocalymma gibbosumis restricted to the Serra da Piedadein Minas Gerais State (Fig. 2), in the counties of Caetand Sabar. It has been found in seasonal semideciduousforest. Flowering specimens were collected in July andSeptember, fruiting in October.

Similar speciesAdenocalymma gibbosum stands out by having, amongother features, gibbous and orange corolla and inflores-cence with dendritic trichomes. Only two other species havegibbous corolla: Adenocalymma sessile (described in thispaper), which has sessile leaves and greenishyellow corolla,andA. salmoneum, which, despite having orange corolla, hasinflorescence with simple trichomes.

Additional specimens examined (paratypes)Brazil. Minas Gerais: Caet, Serra da Piedade, 1949S,4340W, 15 Jul 1987 (fl), J. A. Paula s.n. (BHCB 18538,

UEC 65787); Serra da Piedade, 26 Oct 1994 (fr), J. A.Lombardi 654 (BHCB). Sabar, Serra da Piedade, Jul 1983(fl), C. Ferreira 64 (BHCB).

Adenocalymma sessileUdulutsch & Assis sp. nov.(Fig. 5)

Adenocalymmati subsessilifolio DC. et A. tephrinocalyci Bureauex K. Schum. affi nis, sed corolla gibbosa differt.

Type:Brazil, Minas Gerais: Marliria, Rio Doce State Park,trilha laboratriolagoa Dom Helvcio, 12 Nov 1997 (fl),

J. A. Lombardi 1960 (holotype: BHCB).

EtymologyTe epithet sessile is an allusion to the sessile leaves, anunusual feature in the genus.

DescriptionShrub, 23 m tall; branchlets drying brown-greyish, withlenticels, flattened and puberulous at apex, with white,simple trichomes. Prophylls of axillary shoots persistent,

0.61.20.10.3 cm, oblong to elliptic, falcate, acute atapex, rounded at base, with inconspicuous venation,puberulous, glabrescent, with 28 irregularly distributedconspicuous nectar glands. Leaves sessile; lateral petiolules0.30.9(1.7) cm long, the terminal petiolule 0.61.2(2.3)cm long, terete, swollen at apex, puberulous, glabrescent.endrils absent. Leaflet blades drying discolored, olive-greenon the adaxial side, greenyellowish on the abaxial side,opaque, chartaceous to slightly coriaceous, with flat andnon-cartilaginous margin and adaxially sulcate midvein andother veins prominent on both sides, glabrous; lateralleaflets 17.435.72.07.2 cm, oblanceolate, acuminateat apex, mucronulate, asymmetric, cuneate to rounded at

base; terminal leaflet 19.442.52.68.7 cm, oblanceo-late, acuminate at apex, mucronulate, symmetric, cuneateto rounded at base. Inflorescence a congested lateral raceme,frequently in old branchlets, drying olive-brown; peduncule0.40.9 cm long; rachis 4.14.8 cm long, puberulous from

white to yellowish, simple to bifurcate trichomes; necta-ries lacking. Bracts in 24 pairs, persistent, 0.30.4 mm,ovate, obtuse at apex, with inconspicuous venation, puber-ulous; nectaries lacking; first order bracteoles caducous,2.64.01.82.5 mm, symmetric, ovate to obovate, cymbi-form, acute to obtuse at apex, with inconspicuous venation,puberulous, with 12 irregularly distributed nectar glands;second order bracteoles persistent, 2.02.61.11.8 mm,

symmetric, obovate, acute at apex, with inconspicuous vena-tion, puberulous, with (0)1 irregularly distributed nectargland. Flowers pedicelate; pedicel 34 mm long, puberu-lous. Calyx 4545 mm, campanulate, subtruncate atapex, apiculate, puberulous outside, papillose inside, with12 irregularly distributed nectar glands per lobe. Corollayellow, gibbous, with conspicuous glands distributed inlongitudinal rows at the base of lobes and mouth of tube;lobes 2.53.02.02.5 mm, ovate, acute at apex, puberu-lous on both sides; tube 2.93.3 cm long, 0.70.8 cm wideat the mouth, the cylindric base of the tube 0.61.00.20.3 cm, tube puberulous outside, except for the base,

182


8/10

Figure 5.Adenocalymma sessilesp. nov. (a) flowering shoot, (b) axillary shoot prophyll, (c) inflorescence, (d) bract, (e) first order bracteole,(f) second order bracteole, (g) disc and ovary, (h) ovary, longitudinal section showing two series of ovules. (a)(h) from Lombardi 1960.Line illustrations by R. G. Udulutsch.

glabrous inside but glandular-tomentose at the level ofstamen insertion. Stamens exserted; longer filaments2.62.8 cm long; shorter filaments 2.02.1 cm long, gla-brous; anthers 2.02.2 mm long; staminode 5.05.5 mmlong, elliptic at apex, membranaceous; disc 1.11.2

2.12.3 mm. Ovary 3.21.4 mm, cylindric, puberulous,with nectar glands at the apex, distributed in longitudinalrows, 26 per row, two rows per carpel; ovules biseriate,78 per series; style 3.13.3 cm, puberulous at apex; stigma2.32.51.01.2 mm, elliptic, glabrous. Fruits unknown.

183


9/10

Distribution and habitatAdenocalymma sessile is known from collections fromMinas Gerais (Fig. 2). It was found in seasonal semidecidu-ous forest. Flowering specimens were collected between

July and September and November. Fruiting collections areunknown.

Similar speciesApart fromA. sessile, the only species ofAdenocalymmathat

have sessile leaves areA. subsessilifoliumandA. tephrinocalyx.Adenocalymma sessilediffers by having gibbous corolla thatallows easy characterization of the species.

Additional specimens examined (paratypes)Brazil. Minas Gerais: Marliria, Rio Doce State Park, Jul 1996(fl), F. R. N. oledo s.n. (BHCB 35515, MBM 233841);Rio Doce State Park, lagoa Dom Helvcio, 18 Sep 1975 (fl),E. P. Heringer 15051 (UB); Rio Doce State Park, trilha doVinhtico, Sep 1994 (fl), L. V. Costa s.n. (BHCB 28246,MBM 199225). Viosa, 8 Sep 1934 (fl), M. Kuhlmann s.n.(VIC 1441); s.a. (fl), s.col. (VIC 848); So Domingos doPrata. Ilhus [do Prata], abunha farm, na rodovia para a

fazenda, 26 Aug 1930 (fl), Y. Mexia 5003 (NY, K).

Key to species ofAdenocalymmareported fromsoutheastern Brazil

1. Leaves sessile 2 Leaves peciolate 4

2. Corolla gibbous A. sessile Corolla infundibuliform 3

3. Inflorescence with ferruginous indumentum; corollawith nectar glands A. subsessilifolium Inflorescence with gray indumentum; corolla lack-ing nectar glands A. tephrinocalyx

4. Corolla glabrous 5 Corolla puberulous to villous or papillose 65. Calyx infundibuliform, lacking nectar glands, ciliate

at apex; first order bracteoles flat; corolla dark yellowA. cymbalum Calyx campanulate, with nectar glands, puberulous totomentulose; first order bracteoles cymbiform; corolla

white with yellow inner tube A. hypostictum6. Stamens exserted 7

Stamens as long as or shorter (included) than thecorolla throat 14

7. Corolla bi-labiate or gibbous 8 Corolla infundibuliform 10

8. Corolla bi-labiate A. dichilum Corolla gibbous 9

9. Leaflets with abaxial side tomentulose to tomentose;inflorescence with dendritic trichomes; first orderbracteoles 1.92.5 cm long A. gibbosum Leaflets with abaxial side glabrous; inflorescence

with trichomes simple; first order bracteoles 3.8 mmlong A. salmoneum

10. Corolla lacking nectar glands 11 Corolla with nectar glands on the abaxial surface tothe throat 13

11. Bracts, bracteoles and calyx lacking nectar glands A. hatschbachii Bracts, bracteoles and calyx with nectar glands 12

12. Inflorescence with ferruginous indumentum; leafletsglabrous A. grandifolium Inflorescence with greyish white indumentum; leafletspuberulous A. dusenii

13. Shrub; ovary with irregularly distributed nectar glands A. cinereum Liana; ovary with nectar glands, distributed in longi-tudinal rows, two rows per carpel A. paulistarum

14. Corolla with nectar glands on the abaxial surface to thethroat 15 Corolla lacking nectar glands 19

15. Inflorescences that develop in old stems, with a largediameter; ovary lepidote, with trichomes just aroundthe nectar glands A. coriaceum Inflorescences that develop in young stems, at theapex of the branches; ovary lacking scales, glabrousor puberulous 16

16. Petiolules slender at apex; inflorescence with dendritic

trichomes A. scabriusculum Petiolules swollen at apex; inflorescence with simpleor bifurcate trichomes 17

17. Axillary shoot prophylls symmetric, never falcate; ovarypuberulous A. trifoliatum Axillary shoot prophylls falcate; ovary glabrous 18

18. Inflorescence hirsute; corolla yellow; leaflets with sul-cate veins on the abaxial side A. hirtum Inflorescence puberulous; corolla dark orange;leaflets with prominent veins on the abaxial sideA. aurantiacum

19. Leaflet margins whitish, cartilaginous A. marginatum Leaflet margins concolored, non-cartilaginous 20

20. Calyx lacking nectar glands; axillary shoot prophyllsnot lignified and foliaceous A. ubatubense Calyx with nectar glands; axillary shoot prophyllslignified and never foliaceous 21

21. Inflorescence and calyx lepidote A. divaricatum Inflorescence and calyx lacking scales 22

22. Leaflets prominently bullate; inflorescence villous A. bullatum Leaflets not bullate; inflorescence puberulous totomentulose 23

23. Shrubs 24 Lianas 26

24. First order bracteoles up to 0.5 cm long; ovary tetrag-

onal in cross section, with trichomes around the nec-tar glands A. nervosum First order bracteoles over 1 cm long; ovary circular incross section, glabrous 25

25. Branchlets and leaves glabrous; inflorescence dryingolive-brown; ovary cylindric, lacking nectar glands A. flavum Branchlets and leaves with trichomes dendritic;inflorescence drying paleaceous; ovary obovoid,

with nectar glands, distributed in longitudinal rows A. macrophyllum

184


10/10

26. Inflorescence with trichomes greyish white; corollagreenish yellow A. dusenii Inflorescence with trichomes brown to olive-green;corolla dark yellow 27

27. Leaflets papyraceous to slightly chartaceous 28 Leaflets coriaceous 29

28. Leaflet blades drying opaque above, apex prominentlymucronate; ovary with nectar glands, distributedin longitudinal rows; axillary shoot prophylls pun-gent A. reticulatum Leaflet blades drying lustrous above, apex slightlyapiculate; ovary with irregulary distributed tiny nec-tar glands; axillary shoot prophylls not pungent A. bracteatum

29. Leaflet blades puberulous to tomentulose below;inflorescence with trichomes light brown to caramel;ovary with 78 ovules per series A. ackermannii Leaflet blades glabrous below, occasionally withtrichomes only on the basis of midvein and secondaryveins; inflorescence with trichomes olive brown; ovary

with 1118 ovules per series A. comosum

Acknowledgements Tis paper is part of the PhD thesis of thefirst author. We thank the curators of herbaria for the loan ofnational and international collections and for providing images oftype specimens, especially to the curators of B, BR, LE, M, NY,

P, R, RB and W for their attention and collaboration. We alsothank Jacquelyn Kallunki and all other NYBG staff members, whomade it possible for RGU and PD to visit NYBG. RGU wassupported by CNPq (140945/2004-0) and IAP research grants2005, and PD was supported by FAPESP (02/09762-6).

References

Hickey, L. J. 1973. Classification of the architecture of dicoty-ledonous leaves. Am. J. Bot. 60: 1733.

Lohmann, L. G. 2006. Untangling the phylogeny of neotropicallianas (Bignonieae, Bignoniaceae). Am. J. Bot. 93: 304318.

McNeill, J. et al. (eds) 2006. International code of botanicalnomenclature (Vienna code). Adopted by the 17th Int. Bot.Congr. Vienna, Austria, Jul 2005. Vol. 146. Reg. Veg. KoeltzScientific Books.

Payne, W. W. 1978. A glossary of plant hair terminology. Brittonia 30: 239255.

Sandwith, N. Y. 1937. Notes on tropical American Bignoniaceae. Recueil rav. Bot. Neerl. 34: 205232.

Udulutsch, R. G. 2008. Reviso taxonmica de AdenocalymmaMart. ex Meisn. (Bignoniaceae Juss.). PhD thesis, Univ.Estadual Paulista Jlio de Mesquita Filho (UNESP), Rio

Claro, So Paulo, Brazil.Udulutsch, R. G. et al. 2009. Adenocalymma calcareum sp. nov.(Bignoniaceae) from Brazilian Amazonia and a key to theAmazonian species of the genus. Nord. J. Bot. 27: 449453.

Weberling, F. 1989. Morphology of flowers and inflorescences. Cambridge Univ. Press.

185

Documents

Udulutsch Et Al 2013 Adenocalymma