116 
MERRILL. 
Annuals or perennials, with turgid, somewhat hooked pods, not winged; seeds 
small, oval, with a small lateral hilum (Subgen. Stizolobiu ji ) . 
Pods* densely covered with brown, stiff, very irritating hairs. 
Leaves densely gray-tomentose beneath, the leaflets mostly broader than long, 
the terminal one usually retuse, chartaceous 6. M. sericophylla 
Leaves slightly pubescent beneath, the leaflets longer than broad, acute or 
acuminate, membranaceous 7. M. pruriens 
Pods finely and softly gray-pubescent, the hairs not at all irritating, longi- 
tudinally ridged in the median portion 8. M.nivea 
Pods densely and softly purplish-velvety, not or very obscurely longitudinally 
ridged JMBH® 9. if. deeringiana 
Pods unknown; racemes about 13 cm long, and with the calyx yellow-tomentose 
with short hairs, and with interspersed longer ones; young shoots, petioles, 
and under surface of the leaflets ferruginous-tomentose; flowers 5.5 to 6.5 
cm. long ,.... 10. M. aurea 
1. Mucuna nigricans (Lour.) Steud. Nom. ed. 2, 2 (1841) 163. 
Citta nigricans Lour. FI. Cochinch. (1790) 456. 
Carpopogon imbricatum Roxb. Plort. Beng. (1814) 54, nomen. 
Mucuna imbricata DC. Prodr. 2 (1825) 406; Baker in Hook. f. FI. Brit. Ind. 
2 (1876) 185; Prain in Journ. As. Sac. Beng. 66 2 (1897) 65; Merr. in Philip. 
Journ. Sci. 1 (1906) Suppl. 67. 
Negretia urens Blanco FI. Filip. (1837) 586, ed. 2 (1845) 409, ed. 3, 2: 387. 
Mucuna monosperma F.-Vill. Nov. App. (1880) 63, non DC. 
Stizolobium imbricatum O. Ktze. Rev. Gen. PI. (1891)' 208. 
Zoopthalmum nigricans Prain 1. c. as syn. 
Luzon, Province of Cagayan, Bolster 126: Province of Zambales, Eallier s. n.: 
Province of Pampanga, Merrill 3914: Province of Bataan, Bur. Sci. 1885 Fox- 
voorthy, Whitford 1028, Merrill 3783, Williams 231: Province of Tayabas, Cuming 
688. Polillo, Bur. Sci. 6969 Robinson. Mindoro, For. Bur. 11455 Merritt. 
Leyte, Elmer 7 138. Mindanao, Province of Surigao, Bolster 314: District of 
Zamboanga, For. Bur. 9093 Whitford: District of Davao, Copeland 944- 
Native names: Duglo (Bataan); baluctot (Polillo); alilipai (Zamboanga); 
buquitquit, lipai, ex Blanco. 
Himalayan region to Indo-China and the Andaman Islands; probably also in 
the Malay Archipelago. Closely allied species are M. junghuhniana (O. Kuntze) 
Prain, of Java, and M. cyanosperma Iv. Sch. from the Moluccas. 
2. Mucuna curran ii Elmer Leaf!. Philip. Bot. 1 (1907) 230. 
Luzon, Province of Benguet, Elmer 844%, Williams 1-4% 4, Merrill 4818, For. 
Bur. 5111 Curran, locally known to the Igorots as dungan. 
Endemic. 
3. Mucuna mindorensis Merr. in Philip. Journ. Sci. 3 (1908) Bot. 231. 
M.ucuna acuminata Merr. 1. c. 1 (1906) Suppl. 196, non Grah. 
Mindoro, McGregor 322, 220, For. Bur. 6861 Merritt, Merrill 4069. It is 
probably also represented by For. Bur. 10289 Curran, from Tayabas Province, 
Luzon, and For. Bur. 2955 .Ahern’s collector, from Rizal Province, Luzon, both 
without fruits. 
Endemic. 
4. M.ucuna gigantea (Willd.) DC. Prodr. 2 (1825) 405; Baker in Hook. f. 
FI. Brit. Ind. 2 (1876) 186 ; F.-Vill. Nov. App. (1880) 63; Vid. Rev. PI. Vase. 
Filip. (1886) 109; Perk. Frag. FI. Philip. (1904) 86. 
Dolichos giganteus Willd. Sp. PI. 3 (1800) 1041. 
Carpopogon giganteum Roxb. Hort. Beng. (1814) 54. 
Stizolobium giganteum Spreng. Syst. 4 (1827) Cur. Post. 281. 
