HITCHCOCK AND CHASE — GRASSES OF THE WEST INDIES. 393 



from the type specimen collected in 1896 by Picarda (no. 1523) on Mount 

 Furcy, Haiti. 



95. ORTHOCLADA Beauv. 



Spikelets articulated below the glumes, 1-flowered with a prolongation of 

 the rachilla, or 2-flowered, the florets distant; glumes and lemmas acuminate. 



1. Orthoclada laxa (Rich.) Beauv.; Nees, Agrost. Bras. 522. 1829. 



Aira laxa Rich. Act. Soc. Hist. Nat. Paris 1 : 106. 1792. 



Panicum rariflorum Lam. Encycl. 4: 746. 1798. 



Orthoclada rariflora Beauv. Ess. Agrost. 69. pi. 14. f. 9. 1812. 



A stoloniferous perennial ; flowering culms ascending, leafy, simple, commonly 

 1 meter long ; blades slender-petioled, lanceolate, mostly 12 to 15 cm. long, about 

 2.5 cm. wide; panicle large, as broad as long, the long slender naked branches 

 and capillary branchlets at first erect, finally stiffly divergent, bearing 1 to few 

 spikelets at the extremities. 



Rich woods, southern Mexico to Brazil ; also in Guadeloupe and Trinidad. 

 Originally described from Cayenne. Panicum rariflorum was also described 

 from Cayenne. 



96. STREPTOGYNE Beauv. 



Spikelets several-flowered, subsessile in a long one-sided raceme; glumes 

 unequal, much shorter than the elongate terete callus-tipped florets ; lemmas 

 firm, tapering into a slender awn ; palea about as long as the lemma ; stigmas 3, 

 elongate, persistent, coiled,, the mature fruits hanging by these entangled stigmas. 



1. Streptogyne crini fa -Beauv. E33. Agrost. SO. pi. 16. f. 8. !S iS^,Cru/ Ur^J^^ *f> 

 An erect perennial, 1 to 1.5 meters tall, with elongate leaves mostly aggregated 



at the base and reaching beyond the base of the inflorescence, the blades 1 to 1.5 



cm. wide, and a slender spike 30 to 50 cm. long, the axis rather firm, the short- 



pediceled slender spikelets appressed, about 3 cm. long, excluding the slender 



awns and curled stigmas. 



Rich woods, Veracruz and Trinidad (Tabaquite, Caparo Forest) to Brazil. 



" Carolina," the locality given with the original description, is an error. Beau- 



vois also mentions Guiana. 



97. UNIOLA L. 



Spikelets strongly compressed, few to many-flowered, the lower 1 to 4 florets 

 empty ; glumes and lemmas keeled, firm, the glumes small, the lemmas faintly 

 many-nerved ; paleas rigid, the keels broadly winged. 



Spikelets 8 to 10 mm. broad, in a drooping panicle 1. U. paniculata. 



Spikelets less than 2 mm. wide, closely aggregated in numerous spikes, forming 

 a long narrow erect inflorescence 2. U. virgata. 



1. Uniola paniculata L. Sp. PI. 71. 1753. Seaside oats. 

 A robust tufted smooth perennial, often 2 meters tall, with long, tough, involute 



blades and long panicles of pale heavy spikelets, commonly 2.5 cm. long. 



Sandy seacoasts, Virginia to South America. Originally described from 

 " Carolina." In Cuba called " arana." 



Bahamas (New Providence, Andros, Inagua) and Cuba. 



2. Uniola virgata (Poir.) Griseb. Fl. Brit. W. Ind. 531. 1864. 

 Poa virgata Poir. in Lam. Encycl. 5: 78. 1804. 



Uniola racemi flora Trin. Mem. Acad. St. Petersb. VI. Sci. Nat. 2 1 : 55. 1836. 

 Uniola sparta Trin. Linnaea 10: 307. 1836. 



Eleusme procera Spreng. ; Steud. Norn. Bot. ed. 2. 1: 549. 1840, as synonym 

 of Uniola racemi flora. 



