68 BRITTON : CUBAN PLANTS NEw TO SCIENCE 
glabrescent in age with the exception of the midvein; legume 
oblong, 4 cm. long, I-1.2 cm. broad, pointed at both ends; seeds 
ovate, 5 mm. long, 4-4.5 mm. broad. 
Among rocks along stream, vicinity of Camp San Benito, 
Oriente (Shafer 4089); also collected at Moa, Baracoa (Roig 
43). 
BEMBICIDIUM Rydberg, gen. nov. 
A low unarmed shrub. Leaves abruptly pinnate; stipules 
lanceolate, persistent; petiole and rachis broadly winged, the 
wings discontinuous, the rachis slightly produced above the 
uppermost leaflets; leaflets entire, coriaceous without veins, the 
midrib prominent. beneath, obsolete above; stipels obsolete. 
Flowers solitary in the axils. Calyx turbinate, as broad as long, 
with two broad, subequal, acute lips; corolla purplish, with sub- 
equal petals. Banner obovate, slightly retuse, gradually tapering 
into the short broad claw. Wings and keel-petals equal in length 
and shape, the blades obliquely oblanceolate, rounded at the 
apex, slightly auricled at the base; claws short, straight, the 
blades of the keel-petals united at the middle only. Ovary slightly 
stipitate, linear, many-ovuled; style glabrous, bent inward at the 
base, slightly arcuate, not hooked at the apex; stigma minute, 
terminal. Fruit unknown. [Name Greek, a little top, from the 
small top-shaped flower buds.] A monotypic genus. 
Bembicidium cubense Rydberg, sp. nov. 
A shrub 5-6 dm. tall, the branches and twigs clothed with 
appressed, ferruginous hairs. Leaves equally pinnate, 0.7—2 cm. 
long, short-petioled, glabrous, the rachis prominently winged; 
leaflets 2-6, oblong to elliptic or somewhat obovate, rounded at 
the apex, often somewhat inequilaterally rounded at the base, 
sessile, dark-green, wrinkled and veinless above, brownish be- 
neath, the midvein rather prominent, the lateral veins indistinct ; 
margin revolute; corolla 1-3 cm. long; blade of the standard 
obovate; wings oblanceolate; keel-petals obanceolate, 1 cm. long. 
Mountain woods, vicinity of Baracoa, Oriente (Shafer 4284). 
Notodon cayensis Britton & Wilson, sp. nov. 
A shrub 1-2 m. tall, with grayish-brown, puberulent branches, 
the young twigs pubescent with appressed, ferruginous hairs. 
Leaves equally pinnate, I-1.5 cm. long, short-petioled, glabrous, 
the rachis narrowly winged; leaflets 2 or 4, obovate, 6-11 mm. 
long, 2-4 mm. broad above the middle, rounded at the apex, 
