A Taxonomic Revision of Desmodium (Leguminosae, Papilionoideae) in Brazil
Author
Lima, Laura Cristina Pires
Author
Queiroz, Luciano Paganucci De
Author
Tozzi, Ana Maria Goulart De Azevedo
Author
Lewis, Gwilym Peter
text
Phytotaxa
2014
2014-05-16
169
1
1
119
journal article
10.11646/phytotaxa.169.1.1
1179-3163
10089817
15.
Desmodium incanum
DC., Prodr.
2: 332. 1825.
Hedysarum incanum
Sw, Prodr.
107. 1788,
nom illeg., non
Thunb, 1784.
Meibomia adscendens
var.
incana
(DC.) Kuntze, Revis
gen.
Pl. 1: 195. 1891
.
Meibomia incana
(DC.) Vail, Bull. Torrey Bot
Club 19: 118. 1892
.
Meibomia incana
O.F. Cook e G.N. Collins, Contr. U.S. Natl. Herb.
8: 189. 1903,
nom. illeg., hom. post.
Desmodium canum
Schinz e Thell., Mem. Soc. Neaucht. Sci. Nat.
5: 371. 1913.
Meibomia cana
S.F. Blake Bot. Gaz.
78: 276. 1924
,
nom. illeg
.
Desmodium frutescens
Schindl., Rep.
Spec. Nov.
Regni 23: 116. 1926
,
non
Hedysarum frutescens
L., 1753.
Lectotype
(designated by
Schubert 1971
):—"
Hedysarum
folliis ternatis, foliolis ovatis, floribus spicatis" (Plumier, ed Burm., Pl. Amer. p. 140, Tabula 149, 1757).
Fig. 17
.
Hedysarum canescens
Mill., Gard. Dict. Ed.
8. 1768,
nom. iIleg., non
Linnaeus, 1753
.
Hedysarum supinum
Sw., Prodr.
106. 1788,
nom. iIleg., non
Chaix
ex
Villars, 1779.
Desmodium supinum
DC., Prodr.
2: 332. 1825.
Desmodium incanum
var.
supinum
(Sw.) Hook. e Arn., Bot. Beechey Voy.
: 417. 1841
,
nom. illeg
.
Meibomia supina
(Sw.) Britton, Ann.
New York Acad. Sci. 7: 83. 1892
,
nom. illeg
.
Lectotype
(designated by
Nicolson 1978
):—"
Hedysarum
triphyllum fruticosum supinum, flore purpureo": Sloane, Voy
Jamaica
1: 185, Tabula118, 1707.
Hedysarum diversifolium
Poir., Encycl.
6(2): 403. 1805.
Desmodium diversifolium
(Poir.) DC., Prodr.
2: 334. 1825.
Type
:—
MADAGASCAR
.
l'Ile-de-Madagascar
,
P.
Commerson
s.n.
(
holotype
P-JU!, isotypes G-DC!,
FI-W
!)
.
Desmodium sparsiflorum
G. Don, Gen.
hist. 2: 294. 1832
.
Lectotype
(designated here):—"
Ilha de Saint Thomas
,
G. Don s.n.
" (
lectotype
BR!, isolectotype BM!).
Desmodium diversifolium
Schltdl., Linnaea
12: 313. 1838
,
nom. illeg., non
De Candolle, 1825
.
Desmodium variifolium
Steud., Nomencl. Bot. Ed.
2.1: 496. 1840.
Meibomia variifolia
(Steud.) Kuntze, Revis. Gen. Pl.
1: 198. 1891
. Type:—
MEXICO
. Hacienda de la laguna, 28 August,
C.J.W. Schiede s.n.
(
holotype
HAL 51029!).
Desmodium incanum
f.
obovatifolium
Wawra
,
Flora
16: 245. 1864
.
Type
:—
BRAZIL
.
Rio de Janeiro
:
Cantagalo
,
November
,
T.
Peckolt
125
(
holotype
W
!)
.
Desmodium incanum
f.
minor
Chodat & Hassl., Bull. Herb. Boissier
, sér. 2, 4(9): 891. 1904
.
Lectotype
(designated here):—
PARAGUAY
. in camis
Cordillera
de Altos
, January,
E. Hassler 3816
(
lectotype
G00070259
!, isolectotypes
G00070256
!,
G00070258
!, K!, P![2 sheets], W!).
Meibomia ovalis
Rusby, Mem.
New York Bot. Gard. 7(3): 264. 1927
.
Type
:—
BOLIVIA
.
Rurrenabaque
, 100 feeets,
15 October 1921
,
H.H. Rusby 1285
(
holotype
NY*!, isotypes BKL*!, MICH*!),
syn. nov.
Prostrate, ascendent, decumbent or erect, branched subshrub, lacking stolons rooting at the nodes, without a xylopodium; stems virgate or not, slender, cylindrical, sulcate, sparsely or densely puberulous-uncinate, uncinate or tomentose or glabrescent, not glaucous; internodes
1.2–2.5 cm
long. Stipules 6–8 ×
2–2.5 mm
, triangular, not auriculate, semi-amplexicaul, inserted perpendicularly at the base of the leaf petiole, partially fused from each other, apex caudate, margin ciliate, sparsely puberulous-uncinate and tomentose, veins conspicuous, persistent. Leaves trifoliolate; petiole
2–30 mm
long, cylindrical, sulcate, sparsely puberulous-uncinate; rachis
2–6 mm
long;
52
•
Phytotaxa
169 (1) © 2014 Magnolia Press
LIMA
ET AL.
stipels
4–8 mm
long, subulate or lanceolate, margin ciliate, glabrescent on the outer surface, persistent; leaflets discolorous, chartaceous or coriaceous, venation brochidodromous, primary and secondary veins prominent, tertiary veins flush with the abaxial surface, indumentum densely tomentose and pubescent on the primary, secondary and tertiary veins on the abaxial surface, adaxial surface glabrescent or pubescent, uncinate hairs covering both surfaces, terminal leaflet 4–10 ×
1–5.4 cm
, elliptic, narrowly elliptic, narrowly obovate, broadly obovate, broadly oblong, oblong or ovate, base oblique or obtuse, apex subacute, acuminate or obtuse, mucronate, lateral leaflets 2.5–6 ×
1–2.5 cm
, the same shape as the terminal leaflet. Inflorescence a terminal or axillary pseudoraceme; the main axis longer than the adjacent leaves,
7–18 cm
long, sparsely or densely puberulousuncinate and hispid, 2–3 flowers per node; primary bract
2–3 mm
long, lanceolate, margin ciliate, puberulous–uncinate on the outer surface, caducous, veins conspicuous on the outer surface; secondary bract ca.
1 mm
long, lanceolate, margin ciliate, puberulous-uncinate on the outer surface, caducous, veins inconspicuous on the outer surface; pedicel
4–9 mm
long, sparsely puberulous-uncinate and hispid. Flowers
4.5–5 mm
long; calyx bilabiate, tube campanulate,
1–1.5 mm
long, tomentose and puberulous-uncinate on the outer surface; upper lip bifid, oblong, the 2 teeth joined for ca. ¾ of their length, acute, ca.
0.2 mm
long; lower lip trifid, lateral tooth triangular,
1–1.2 mm
long, central tooth triangular, ca.
1.5 mm
long; corolla lilac, purple or white, standard 4.5–5 ×
4–5 mm
, orbicular, apex obcordate, maculate at the base, claw ca.
1.5 mm
long; wing petals 4.5–5 ×
1.5 mm
, oblong, apex obtuse, without callosities, claw ca.
1 mm
long; keel petals 4.5–5 ×
1.5 mm
, narrowly obovate, apex obtuse, with callosities, claw
0.5 mm
long; androecium diadelphous,
4.5–5 mm
long, vexillary stamen free; ovary
2.5–3 mm
long, tomentose, stipe ca.
0.5 mm
long, glabrous. Loment
1.2–2.4 cmlong
, stipe
1.5–2 mm
long, uncinate, isthmus marginal, upper suture straight, lower suture crenate; articles uniform 4–8, 4–5 ×
3–3.5 mm
, quadrangular or oblong, not tortuous, dehiscents, subcoriaceous, veins inconspicuous, densely uncinate. Seed 3 ×
2 mm
, oblong, hilum central.
Selected specimens examined:—
BRAZIL
.
Acre
:
Cruzeiro do Sul
:
Serra do Moa
,
1 May 1971
, fl., fr.,
P
.
J
.
Maas
12684
(
INPA
)
.
Alagoas
:
Maceió
:
Saúde
,
20 July 2000
, fl.,
R
.
P
.
L
.
Lemos
et al. 4924
(
HUEFS
)
.
Amapá
:
Ferreira Gomes
: BR-156,
Km
72 de
Tartarugalzinho
para
Ferreira Gomes
,
Ponte
do
rio Tracajatuba
,
3 September 1988
, fl., fr.,
N
.
M
.
S
.
Costa
et al. 2269
(
CEN
).
Amazonas
:
Manaus
:
Estrada de Flores
próximo a
Mello Matos
,
12 October 1955
, fr.,
J
.
Chagas
2132
(
INPA
)
.
Bahia
:
Rui Barbosa
:
Serra do Orobó
,
26 May 2005
, fl., fr.,
L
.
P
.
de Queiroz
et al. 10645
(
HUEFS
).
Distrito Federal
:
Brasília
:
Bacia
do
rio São Bartolomeu
,
17 March 1980
, fr.,
E
.
P
.
Heringer
et al. 3820
(
LISC
*)
.
Espírito Santo
:
Linhares
:
Reserva da Companhia Vale do Rio Doce
, estrada
Roxinho
, próximo ao aceiro
Catelã
,
8 April 2006
, fl.,
G
.
Q
.
Freire
et al. 77
(
HUEFS
,
RB
)
.
Goiás
:
Niquelândia
: ca.
5 km
Oeste de Niquelândia
,
25 January 1972
, fl.,
H
.
S
.
Irwin
et al. 34989
(
UB
)
.
Maranhão
:
São Mateus
:
Perto do Km
150-165 da BR-135, ca.
15-30 km
de
São Mateus
,
28 September 1980
, fl.,
D.
C
.
Daly
et al. 323
(
MG
)
.
Mato Grosso
:
Poconé
: rodovia
Transpantaneira
MT-060,
Pantanal
,
11 June 2007
, fl., fr.,
V
.
J
.
Pott
&
A
.
Pott
9372
(
CGMS
)
.
Mato Grosso do Sul
:
Naviraí
:
Sede
da fazenda
Dois Irmãos
,
26 September 2008
, fl., fr.,
L
.
C
.
P
.
Lima
et al. 433
(
HUEFS
)
.
Minas Gerais
:
Juiz de Fora
:
Morro do Imperador
,
20 November 2001
, fl., fr.,
D.
S
.
Pifano
&
A
.
S
.
M
.
Valente
126
(
BHCB
,
HUEFS
,
MBM
).
Pará
:
Belém
: s. loc.,
21 May 1927
, fl., fr.,
H
.
Zerny
s.n.
(
WU
)
.
Paraíba
:
João Pessoa
:
Jardim Botânico
,
22 September 2004
, fl., fr.,
P
.
C
.
Gadelha-Neto
1273 (
HUEFS
)
.
Paraná
:
Adrianópolis
:
Barra Rio Pardo
,
5 April 1976
, fl., fr.,
G
.
Hatschbach
38562
(
HBG
)
.
Pernambuco
:
Recife - Anados
,
24 August 1954
, fl., fr.,
J
.
I
.
A
.
Falcão
et al. 763
(
UEC
)
.
Piauí
:
Corrente
:
Branquinha
(
Lagoa
),
9 March 1994
, fl.,
M
.
S
.
B
.
Nascimento
538
(
K
)
.
Rio de Janeiro
:
Rezende
: fazenda
Alegria
,
7 May 1935
, fl., fr.,
A
.
Roriz
s.n.
(
SP33196
)
.
Rio Grande do Norte
:
Parnamirim
:
Hidrominas Santa Maria
, perto da linha do trem,
28 June 2005
, fl., fr.,
A
.
Ribeiro
&
J
.
Silva
146
(
UFRN
*)
.
Rio Grande do Sul
:
Caçapava do Sul
:
Seival
,
22 January 1992
, fl., fr.,
A
.
Jasper
&
M
.
Rossato
s.n.
(
B
,
G
,
K
,
L
,
MBM165953
)
.
Rondônia
:
Jaru
: estrada
Porto
Velho-
Cuiabá
, BR-364, km 278,
15 February 1983
, fl., fr.,
L
.
O
.
A
.
Teixeira
et al. 1534
(
MG
)
.
Roraima
:
Boa Vista
:
Reserva Ecológica de Maracá
,
27 March 1987
, fl., fr.,
G
.
P
.
Lewis
1574
(
E
,
K
)
.
Santa Catarina
:
Ibirama
:
Horto Florestal
,
6 February 1956
, fl., fr.,
R
.
Reitz
&
R
.
M
.
Klein
2662
(
L
)
.
São Paulo
:
Itanhaém
:
Ilha da Queimada Grande
,
11 April 1996
, fr.,
V
.
C
.
Souza
et al. 11035
(
HUEFS
,
SPF
)
.
Sergipe
:
Aracaju
: BR-101,
Aracaju - Maceió
,
Km
9,
18 August 1980
, fl., fr.,
L
.
Coradin
3052
(
K
)
.
Distribution and Ecology:—
Australia
, southeastern Asia, Africa, Central and South America (
Schubert 1980
,
Pedley1999
,
Ohashi 2004
b
, Lima
et al.
2010).
D.incanum
occurs in all Brazilian States and has no evident habitat preference.
Conservation Assessment:—
Least Concern (LC), not endangered (
IUCN 2001
).
DESMODIUM
(LEGUMINOSAE,
PAPILIONOIDEAE
) IN
BRAZIL
Phytotaxa
169 (1) © 2014 Magnolia Press •
53 54
•
Phytotaxa
169 (1) © 2014 Magnolia Press
FIGURE 17.
Desmodium incanum
. A. Habit. B. Stipules in the branch. C. Stipules inner surface. D. Calyx inner surface (opened). E. Parts of the corolla from the bottom to top: keel petals, wing petals, and standard. F. Androecium diadelphous (opened). G. Gynoecium. H. Fruit. I. Seed. (A:
Queiroz 10645
; B–I:
Lima 433
).
LIMA
ET AL.
Phenology:—
flowering and fruiting throughout the year.
Etymology:—
from the Latin
incanus
(= white), alluding to the white indumentum on the abaxial surface of the leaflets.
Common Names:—
amor-de-velho; amorosa; amor-seco; amor-de-campo-sujo; amor-de-vaqueiro; barba-deanta; barba-de-boi; beiço-de-boi; carrapichinho; carrapicho; carrapicho-beiço-de-boi; carrapicho-de-favinha; carrapicho-focinho-de-boi; carrapicho-miúdo; carrapicho-namorado; focinho-de-boi; mata-pasto; manduvurana; mela-bode; pega-pega; prega-prega; trevo-do-campo; venta-de-boi.
Taxonomic notes:—
partially fused stipules, terminal or axillary, pseudoracemose inflorescences, and dehisicent, densely uncinate, quadrangular fruit articles are diagnostic characteristics of
D. incanum
. The species can be confused with
D. affine
and
D. axillare
due to its similar habit and elliptic leaflets (see notes under those two species).
For more than a century there has been confusion about the correct name of this species. The names most commonly used were
Desmodium incanum
(Sw.) DC.
,
Desmodium canum
Schinz & Thell
,
Desmodium frutescens
Schindl.
, and
Desmodium supinum
(Sw.) DC. Details
about nomenclatural problems associated with this species are available in
Nicolson (1978)
and
Lima
et al.
(2012b)
.