19G 
MUCUNA Adans. 
Mucuna acuminata Morrill sp. iiov. § Garpopogon. 
A long slender climber reaching a lieigbt of from 12 to 15 ni. with 
slender glabrous Ijranclies, glabrous trifoliate leaves and short or long 
pednncled pendulous inflorescence, the flowers pale green or nearly wliite, 
5 to 5.5 cm. long, the pods about 20 cm. long, rather strongly abruptly 
acuminate, without transverse plates and nearly glabrous, broadly winged 
down both sutures. Petioles 8 to 10 cm. long, glabrous or very slightly 
j)ubescent, the petiolules about 5 mm. long; leaflets ovate to elliptical 
ovate, 10 to 18 cm. long, 6 to 11 cm. wide, abruptly caudate-acuminate, 
the base rounded or subcordate, the terminal one regular, the lateral 
ones inequilateral glabrous, or when young with few appressed hairs; 
stipels subulate, nearly 5 mm. long. Peduncles slender, 20 to 60 cm. 
or more in length, the flowers paniculate at the apex, the branches 
5 cm. long or less, the pedicels 1 to 1.5 cm. long, pubescent; bracts and 
bracteoles early deciduous. Calyx cup-shaped, 1 cm. long, about as broad, 
densely ferruginous and cinerous pubescent, but without stinging hairs, 
suboblique, the teeth short, broad. Keel and wings subequal, the former 
somewhat inflexed at the apex, the wings clawed, auricled at the base, 
pubescent on the margins below; standard about 2.5 cm. long, wider 
than long, retuse. Pod oblong, 18 to 21 cm. long, 5 to 5.5 cm. wide, 
4 to 6 seeded, black when dry, shining, reticulate, Imt without plaits and 
stinging hairs, often somewhat pubescent l)elow, the base acuminate, the 
apex abruptly apiculate-acuminate, the acumen 1.5 to 2 cm. long, the 
marginal wings about 1 cm. wide. 
Mindoro, Baco River (4069 Merrill) March, 1905 (type) ; (220, 322 McGregor) 
April-May, 1905. In thickets along tlie river. Possibly No. 2955 Ahern’s col- 
led or, from Bosoboso, Province of Rizal, Luzon, is the same, but the specimens 
are with immature flowers only. 
A species closely related to Mvcuna gigantea DC., differing from that species 
ill its larger pods, which are without stinging hairs and which are rather long 
apiculate-acuminate, rather larger flowers and leaves, the leaflets also difl'ering 
in sliape and size. Differing from M. longipedunculata Merr., in its much smaller 
flowers. 
Mucuna luzoniensis Merrill sp. nov. ^ Stizolohium. 
Scandent, the trifoliate leaves 20 cm. long or less, the short pednncled 
racemes 15 to 40 cm. long, densely flowered, the flowers black-purple, 
al)Out 3.5 cm. long, the pods flattened, scarcely turgid, not plaited or 
wdnged, straight, 9 cm. long, 1.5 cm. wide, densely covered with reddish- 
brown pungent stinging hairs. Petioles 8 to 10 cm. long, pubescent, 
file petiolules very densely puljescent, about 5 mm. long ; terminal leaflet 
lu'oadly ovate, rounded-truncate at the base, the a]iex rounded, apiculate, 
tlie lateral leaflets somewhat larger, 8 to 9 cm. long, 6 to 8 cm. wide, 
irregularly broadly truncate at the l)ase, the a])cx I'ounded, apiculate, 
