Mucuna pungens (Vell.) H.F.Menezes & J.F.B.Pastore, 2023

De Menezes, Helen F. & Pastore, José Floriano B., 2023, A new combination in Mucuna (Leguminosae-Phaseoleae) of Florae Fluminensis, Phytotaxa 616 (2), pp. 195-199 : 196-197

publication ID

https://doi.org/ 10.11646/phytotaxa.616.2.10

DOI

https://doi.org/10.5281/zenodo.8408650

persistent identifier

https://treatment.plazi.org/id/B54187CE-FFD2-5E77-02C1-47C2FA63FEB1

treatment provided by

Plazi

scientific name

Mucuna pungens (Vell.) H.F.Menezes & J.F.B.Pastore
status

comb. nov.

Mucuna pungens (Vell.) H.F.Menezes & J.F.B.Pastore , comb. nov. Dolichos pungens Vell. Flora Fluminensis 1829 [1825]): 301. Protologue:—“Habitat silvis maritimis Pharmacopolitanis”.

Lectotype designated here: [icon ined.] “Diadelph. Decand. DOLICHOS pungens Tab. 157)” (Seção de Manuscritos, Bibliot. Nac., Rio de Janeiro No. I‐17, 04, 001; mss1198656_161) ( Fig.1.C View FIGURE 1 )

= Mucuna japira A.M.G. Azevedo, K. Agostini & Sazima (2005: 452) View in CoL , syn. nov. Type: protologue:— Brazil, S„ o Paulo, Mun. Ubatuba (23°20’ S, 44°52’ W), 5 Jun 2002, Agostini 1 ( UEC 126881 About UEC ) GoogleMaps .

Lianas; Leaf trifoliolate; stipels absent; petiole 7.5−9 cm; leaflet laminas densely sericeous on the abaxial surface, appressed and sparse on the adaxial surface, lateral leaflets asymmetrical, 8.2−12 × 3−5.8 cm, rounded to truncate at base, cuspidate at apex, that of the terminal leaflet elliptic, 8.5−13 × 2.9−5 cm, acute at base, cuspidate at apex. Inflorescence an axillary pseudoraceme; peduncle 10.5−16 cm long; bracts and bracteoles caducous; pedicels 1 cm long. Flowers 5.7−7 cm long; calyx campanulate, 1.7−3.2 cm long, with a dense covering of irritating hairs; corolla deep yellow or yellow with reddish spots on the margins, the standard 4.3−5.3 × 2−3.2 cm, attenuate at base, rounded at apex, base with the claw and auricle region fleshy, wing petals 6−6.6 × 1. 1 −1.5 cm, oblong, obtuse at apex, base with auricle, keel petal 6−7.2 × 2−2.4 cm, attenuate at base, acute at apex, base fleshy and apex curved; stamen filaments cream-colored, 7−8 cm long, glabrous; style 6.5−7.6 cm long; ovary 0.8−1.3 cm. Fruit 10−20 × 4 cm, oblong, acute at base and apex, with a dense covering of irritating hairs ferrugineous-hirsute, pericarp with transverse ridges and appearing wrinkled. Seed 1−5, globose. (Adapted from Tozzi et al. (2005)).

Comments: Tozzi et al. (2005) observed significant morphological differences between the specimens collected in southeastern Brazil identified as Mucuna sloanei Fawc. & Rendle compared to the Colombian specimens. Consequently, the Brazilian specimens were treated as a new species, M. japi ra A.M.G. Azevedo, K. Agostini & Sazima. However, these authors seemingly overlooked an earlier name, Dolichos pungens (1829: tab.157), described by Vellozo in Florae Fluminensis. Vellozo’s illustration and description provide essential characteristics for species identification, including a voluble stem ( Fig.1.B View FIGURE 1 ), trifoliolate leaves ( Fig.1.D View FIGURE 1 ), and pseudo-racemose inflorescence with large yellow flowers ( Fig.1.A View FIGURE 1 ). Notably, M. pungens [ M. japira ] is the only species with yellow flowers known to occur in the Rio de Janeiro state ( Mucuna analuciana T.M. Moura, V.F. Mansano & A.M.G. Azevedo has creamy-yellow or greenish flowers). The closest species morphologically are Mucuna rostrata Benth. , but it has orange to red flowers, and occurs only in Amazonian Forest, and M. sloanei , which has an umbellate inflorescence (pseudo-umbellate in Moura et al. (2013)) and smaller flowers than those of M. pungens , with a standard measuring 1/2 the size of the keel (vs 3/ 4 in M. pungens ) and the abaxial surface of the leaflets densely silvery sericeous (vs abaxial surface of the leaflets densely golden sericeous in M. pungens ) and doesn’t occur in Rio de Janeiro state. In addition to the morphological characters presented, the geographical distribution is relevant, since the typical localities of Florae Fluminensis are restricted to the state of Rio de Janeiro and the municipality of Cunha - SP (see Pastore et al. 2021 and Menezes et al. 2023). Therefore, we recognize the priority of the name Dolichos pungens Vell. over Mucuna japira A.M.G. Azevedo, K. Agostini & Sazima.

Habitat, distribution, and phenology: This species is endemic to the Atlantic Forest of the states of Rio de Janeiro and S„o Paulo (BFG 2023) ( Fig.2 View FIGURE 2 ). Based on data recorded on specimen labels, M. pungens flowers from May to December. Fruits have been collected in March to September.

Material examined:— BRAZIL: S „o Paulo : S „o Sebasti„o, Baraqueçaba , [23°45’36.001”S, 45°24’35.99”W], 17 June 1985, Taroda GoogleMaps , N; Semir , J; Yamamoto , K 17672 ( UEC); Ubatuba , [23°25'48.001"S, 45° 4' 11.999”W], 03 March 2010, Moura GoogleMaps , T. M; Silva , J. S; Martins , M. V 884 ( UEC); Ubatuba, Picinguaba, Estrada da Casa da Farinha , 03 December 1988, Garcia, FCP ; et al. 229 ( UEC); Ubatuba , Picinguaba , Praia da Fazenda , [23°25’48.001”S, 45°4'11.999"W], 10 June 1994, Sazima GoogleMaps , M; Araújo , AC; Fischer , EA; Sazima I 31731 ( UEC); Ubatuba, Picinguaba , [23°25’48.001”S, 45° 4’ 11.999”W], 12 November 1989, Furlan GoogleMaps , A. ( HRCB); 969 Praia de Ubatumirim , km 15 BR 101 , 02 June 2008, Teixeira, SP; Alves , JPB 33 About JPB ( UEC); Rio de Janeiro: Paraty, Boa Vista, loteamento, Frade Pousada , APA do Cairuçu , 10 November 1991 , V. L. Gomes-Klein 1191 ( RB); 3 km antes de Parati, no sentido RJ/ Santos, [23°43’31.001”S, 44°43’57.00”W], Nunes GoogleMaps , T. S. 1757 ( HUEFS); Beira da estrada para o Corisco, a 2 km da Rodovia Rio-Santos ( BR 101 ), 29 November 1994, LC. Giordano et al. 18 27 ( RB); Estrada Paraty-Cunha , km 1 após Paraty , s.d ., R Cesar 514 ( RB); Paraty, Rodovia Governador Mario Covas , [23°11'51.000"S, 44°43'41.002" W], 10 May 2023, Menezes GoogleMaps , H. F. & Nascimento , M. 630 ( CTBS); Parati-mirim, Faz. de Parati-mirim, prop. da Flumitur , s.d ., C. de Almeida 277 ( RB) .

S

Department of Botany, Swedish Museum of Natural History

N

Nanjing University

J

University of the Witwatersrand

UEC

Universidade Estadual de Campinas

T

Tavera, Department of Geology and Geophysics

M

Botanische Staatssammlung München

AC

Amherst College, Beneski Museum of Natural History

EA

National Museums of Kenya - East African Herbarium

A

Harvard University - Arnold Arboretum

HRCB

Universidade Estadual Paulista

SP

Instituto de Botânica

V

Royal British Columbia Museum - Herbarium

L

Nationaal Herbarium Nederland, Leiden University branch

RB

Jardim Botânico do Rio de Janeiro

HUEFS

Universidade Estadual de Feira de Santana

R

Departamento de Geologia, Universidad de Chile

H

University of Helsinki

F

Field Museum of Natural History, Botany Department

C

University of Copenhagen

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

Genus

Mucuna

Loc

Mucuna pungens (Vell.) H.F.Menezes & J.F.B.Pastore

De Menezes, Helen F. & Pastore, José Floriano B. 2023
2023
Loc

Mucuna japira A.M.G. Azevedo, K. Agostini & Sazima (2005: 452)

A. M. G. Azevedo, K. Agostini & Sazima 2005: 452
2005
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