362 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
outer spines shorter, subterete, the lobes of the involucre about 10; 
spikelet solitary, about 3.3 mm long (fig. 332). 
Dry, sandy pine barrens, Province of Pinar del Rio, Cuba. 
Cupa: La Grifa, Ekman 11250. Pinar del Rio, Ekman 17845. 
Laguna Santa Barbara, Hkman 18102. Guane, Léon 7475 (Amer. 
Gr. Nat. Herb. 434). San Julian, Léon 6941. Laguna Jovero, Shafer 
10717. Western Cuba, Wright 3475. 
4. Cenchrus brownii Roem. and Schult., Syst. Veg. 2: 258. 1817. 
Based on C. inflexus R. Br. 
Cenchrus inflecus R. Br., Prodr. Fl. Nov. Holl. 1: 195. 1810. Not 
C. inflecus Poir., 1804. Australia. 
Cenchrus viridis Spreng., Syst. Veg. 1: 301. 1825. Guadeloupe. 
Cenchrus echinatus var. viridis Spreng.; Griseb., Fl. Brit. W. Ind. 
556. 1864. 
Culms often rather robust, 30 to 100 cm tall or more, erect from a 
more or less geniculate base, sparingly branching from the base or 
FIGURE 332.—Cenchrus distichophyllus. Bur, FIGURE 333.—Cenchrus brownii. Bur, two views 
spikelet, and floret, X 5 (type). of spikelet, and floret, X 5 (type). 
lower nodes; blades thin, flat, lax, mostly 10 to 30 cm long, 6 to 12 
mm wide; spike usually short-exserted, 4 to 10 cm long, rarely longer, 
dense; burs depressed-globose, the body about 4 mm high, as broad 
or broader, villous, tawny, the outer bristles numerous, very slender, 
crowded toward the base, the inner usually exceeding the body and 
the spikelets, erect or spreading, the lobes of the body usually 6 to 
8, interlocking at maturity; spikelets usually 3 (fig. 333). 
Open ground and waste spaces, often a weed in cultivated fields, 
southern Florida and Mexico to Brazil. 
Banamas: Andros Island, Small and Carter 8711. 
Cusa: Sierra Mendoza, Shafer 11152. Habana, Léon 5618. Sancti 
Spiritus, Léon 837; Clemente 3442. Camaguey, Léon 3963. Cayo 
Ballenato Grande, Shafer 1022. Manati, Léon 5683, 6007. El Cuero, 
Britton and Cowell 12798.. Santiago de Cuba, Pollard, Palmer, and 
Palmer 284. Woodfred, Shafer 3172. Without locality, Wright 3889. 
Isla de Pinos, Britton, Wilson, and Léon 15296. 
Jamaica: Tyre, Harris 12617. Hope Gardens, Harris 11237; 
Hitchcock 9314; Maxon 1640. Spanish Town, Harris 12479. Bog 
Walk, Hitchcock 9300. Ipswich, Hitchcock 9588. Ewarton, Hitch- 
cock 9440. New Forest, Hitchcock 9841. Gordon Town, Hart 783. 
Grand Cayman, Millspaugh 1268. 
Haiti: Port-au-Prince, Hitchcock 19870, 19877; Leonard 2762. 
Fond Parisien, Leonard 4215. Gonaive Island, Leonard 3084, 5156. 
