196 



MUCUNA Allans. 



Mucuna acuminata Mfirill sp. nov. i Carpopayon. 



A long sIc'IkIlt climber reatliiii<i^ a heiirht of from 12 to 15 m. with 

 slender ^labrous branehes, glabrous trifoliate leaves and short or long 

 ])e(lunele(l ])endulous inflorescence, the flowers pale green or nearly white. 

 ') to 5.5 em. long, the pods about 20 cm. long, rather strongly abru])tly 

 ai-uminate, without transverse i)lates and nearly glal)i'ous, l)roadly winged 

 down both sutures. Petioles 8 to 10 cm. long, glabrous oi' vei-y slightly 

 l)ubeseent, the petiolules about 5 mm. long; leaflets ovate to ellijjtieal 

 ovate, 10 to 18 cm. long, G to 11 cm. wide, abruptly caudate-acuminate, 

 the base rounded or subcordate, the terminal one regular, the latei-al 

 ones inecjuilateral glabrous, or when young with few appressed hairs; 

 stipels subulate, nearly 5 mm. long. Peduncles slender, 20 to (50 cm. 

 or more in length, the flowers paniculate at the apex, the bi'andies 

 5 cm. long or less, the pedicels 1 to 1.5 cm. long, pubescent; bracts and 

 bracteoles early deciduous. Calyx cup-sha])ed, 1 cm. long, about as l)road, 

 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, 

 ])ubescent on the margins below; standard about '2.o cm. long, wider 

 than long, refuse. Pod oblong, 18 to 21 cm. long. 5 to 5.5 cm. wide. 

 4 to 6 seeded, black when dry, shining, reticulate, Init without plaits and 

 stinging hairs, often somewhat pubescent below, the base acuminate, the 

 apex abruptly apiculate-acuminate, the acumen 1.5 to 2 cm. long, the 

 marginal wings about 1 cm. wdde. 



Mi.NDOBO, Baco River (4069 Merrill) :»larc-li, 1005 (type) ; (220, .322 McGregor) 

 April-May, 1905. In thickets along the river. Possibly No. 2955 Ahern's col- 

 lector, from Bosoboso, Province of Rizal, Luzon, is the same, but the specimens 

 are with immature flowers only. 



A species closely related to Mticuna gigantea DC, differing from that species 

 in its larger pods, whicli are without stinging hairs and which are rather long 

 apiculate-aeuniinate, rather larger flowers and leaves, the leaflets also differing 

 in sliape and size. Differing from M. longipedunculata Merr., in its much smaller 

 flowers. 



Mucuna luzoniensis Merrill sp. nov. ^ fitizolohium. 



Scandent, the trifoliate leaves 20 cm. long or less, the short peduiuled 

 racemes 15 to 40 cm. long, densely flowered, the flowers black-])urple. 

 about 3.5 cm. long, the jxxis llattened, sc-arcely turgid, not plaited or 

 winged, straight, !> cm. long. 1.5 cm. wide, densely covered with reddish- 

 ))ro\vn pungent stinging hairs. Petioles 8 to 1(> cm. long, pubescent, 

 the ])etiolules very (h'lisely ))ubeseent. al)out 5 mm. long; leiminal leaflet 

 l)roadly ovate, rounded-truiuate at tlie base, the ajx'x roundetl, apiculate. 

 the lateral leaflets sonii-what huger. S to !• (in. long, li to S cm. wide, 

 iri'ei.'-ularh- bronilK Iniiuate ;it the base, the apex rounded. ii|iienlMte. 



