410 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
peduncles, the sterile pedicels, and the base of the spikelet clothed 
with white hairs; awn variable in length. 
Grassy hillsides, southern Mexico and the West Indies to Argentina. 
Grisebach cites Piptatherum setosum <A. Rich., “ex descr.’”’, but 
Richard’s description does not apply to this species. Andropogon 
setosus is taken to be a new species based on Wright 3897, rather than 
a change of name (see p. 182) (fig. 362). 
Cusa: Sancti Spiritus, Léon 894, 895, 5365. Nagua, Ekman 14903a. 
JAMAICA: Hardware Gap, Harris 11437. Flamstead, Harris 11463. 
Bermuda Mountain, Harris 11635. Gorden Town, Hart 812. New- 
castle, Hitchcock 9346. Halls Delight Harris 12934. 
Hartt: Port-au-Prince, Ekman H 419. Las Cahobas, Cook, Scofield, 
and Doyle 98. Petite Riviére de |’Artibonite, Picarda 1634. Morne 
Robin, Buch 1475. Lamarque, Buch 1652. 
Dominican Repusuic: Pimentel, Hkman H 13257. Moncidn, 
Ekman H 12687. Sabana de la Mar, Ekman H 15615. 
Puerto Rico: Trujillo Alto, Sein 318; Chase 6370, 6773. San Juan, 
Chase 6638. Vega Baja, Chase 6421. Rio Piedras, Cowgill 687, 696. 
TRINIDAD: Icacos, Broadway 9290. 
2. Sorghastrum stipoides (H. B. K.) Nash, N. Amer. Fl. 17: 129° 
1912. 
Andropogon stipoides H. B. K., Nov. Gen. et Sp. 1: 189. 1816. 
Colombia. 
Andropogon domingensis Spreng.; Steud., Nom. Bot. ed. 2. 1: 91. 
1840, as synonym of A. stipoides, but the specimen is Sorghastrum 
setosum. 
More slender than the preceding, the narrower blades convolute, 
the spikelets slightly larger, and the awns well developed. 
Palm barrens, Cuba; Colombia to Brazil. This is the species 
referred by Hitchcock ” to S. francavillanum. 
Cupa: Mangas, Hkman 17592. Pinar del Rio, Mitchcock 23252, 
23303. Santa Cruz de los Pinos, Ekman 17680 (Amer. Gr. Nat. Herb. 
998). Guane, Shafer 10353. Handbana, Wright 3897. Vinales, 
Léon 15864. 
113. .RBAAPHIS “Lour.” Fl Cochmeh? 552.4" F790 
Inflorescence a few-flowered panicle, the racemes reduced to a 
single joint of the rachis with a sessile perfect spikelet and 2 pedicellate 
sterile spikelets (the latter sometimes obsolete) borne at the ends of 
slender naked peduncles, these disjointing obliquely near the summit, 
forming a sharp callus below the long-awned spikelets. Perennials or 
rarely annuals, with narrow blades and terminal panicles. 
1. Rhaphis pauciflora (Chapm.) Nash, in Small, Fl. Southeast. 
USS. 672 “1908: 
Andropogon wright. Munro; Wright, An. Acad. Cienc. Habana 8: 
288. 1871 (mame only). Cuba, Wright 3895. 
Sorghum pauciflorum Chapm., Bot. Gaz. 3: 20. 1878. Florida. 
Chrysopogon paucifiorus Benth.; Vasey, Grasses U.S. 20. 1883. 
12 Contrib. U. S. Natl. Herb. 12: 195. 1909. 
13 The name roped f.; Ait., Hort. Kew. 3: 473. 1789, having a different derivation and pronun- 
ciation should not invalidate Rh: aphis Lour. The latter nameshould replace Chrysopogon Trin., Fund. 
Agrost. 187. 20. 
