536 GRAMINEjE. 



constricted ; leaves broad, gradually tapering-acuminate from the obliquely truncate, petioled 

 base : sheath hairy or glabrate, shortly ciliate at the truncate ligule ; panicle spreading : in- 

 ferior branches <J , superior terminated by a single ? spikelet ; spikelets glabrous ; $ glume 

 tailed with a bristle, 2 sterile glumes subulate-tailed : tail of the inferior longer : flower 

 ellipsoidal, hairy at the base and summit, polished-white.— Trin. Ic. t. 347.— Several stems 

 from the root, 2' high ; most leaves 2i"-H" broad, 8"-4" long, several only 6"'-8"' broad. 

 — Hab. Trinidad !, Pd., in wet savannahs ; [Brazil !]. 



** Racemes axillary, uppermost $ (Lithachne, P. Br.). 



41. O. pauciflora, Sw. Stems slender : nodes prominulous and constricted; leaves 

 ovate-lanceolate, acuminate, often obliquely truncate at the base, uppermost remaining con- 

 volute ; petiole hispidulous within : ligule truncate ; racemes axillary, much exceeded by the 

 leaf, uppermost 3 , inferior terminated by a single 2 spikelet, $ below it ; spikelets gla- 

 brous ; $ glumes acuminate with a short bristle, 2 sterile glumes tailed -acuminate : flower 

 obversely deltoid, glabrous, shining-polished, white. — P. B. Agrost. t. 24. f. 2. — Stems 

 aggregate, about 1' high ; leaves 2"-3" long, 6"'-9'" broad.— Hab. Jamaica !, Pd., Mart., 

 Wullschl., in arid, rocky woods, Manchester, Westmoreland ; Antigua !, Wullschl. ; [Cuba ! 

 New Granada !]. 



21. PHARUS, P. Br. 



Spikelets 1 -flowered, monoecious, geminate : one pedicellate $ , the other sessile 2 . 

 Sterile glumes 2, membranaceous, fertile in c? membranaceous, in 9 coriaceous. Stamens 

 6. Stigmas 3. Caryopsis free: "embryo minute." — Leaves petioled, broad, 1-nerved ; 

 v 'eins straight, slightly diverging from the midrib ; panicle spreading : branches spiciform ; 

 spikelets dbloured: ? linear. 



42. P. latifolius, L. (non TV.). Leaves obovate-oblong or elliptical-oblong, cuspidate, 

 scabrous beneath ; fertile glume little longer than the sterile pair, villous only at the 

 exserted summit.— SI. t. 73. /. 2. Br. Jam. I. 38. /. 3.— P. scabra, Kth. P. ovalifolius, 

 Ham.— H'-3' high ; leaves 6"-8»(-3") long, lf-2i w broad j $ spikelets 1£'", ? 5"'-6"' 

 long. — Hab. Jamaica !, all coll., common in moist woods ; Trinidad !, Cr. ; [Florida !, 

 Cuba ! and Mexico ! to Brazil !]. 



43. P. glaber, Kth. Leaves lanceolate-oblong, acuminate ; fertile glume twice or 

 thrice as long as the sterile pair, villous to the base. — Tuss. PI. 2. t. 8. Besc. Fl. 6. 

 t. 398 : compound of this and the preceding. — P. lancifolius, Ham. P. lappulaceus, Lam., 

 Tuss. P. latifolius, Tr. (non L.). — Stature and proportions of the preceding, but leaves 

 8"'-lf" broad, glabrous, rarely scabrous beneath. — Hab. Jamaica!, Wullschl., Manchester; 

 Antigua !, Wullschl. ; [Cuba !, French islands ! ; Venezuela !, Brazil]. 



22. ZEUGITES, P. Br. 



Spikelets 2-4-flowered : lowest flower ? , approximate to the pair of sterile glumes, the 

 other S > distant. Glumes membranaceous-herbaceous, 3-9-nerved, sinuate at the truncate 

 summit, not indurated. "Embryo minute." — Stems branched and geniculated below; 

 leaves petioled, broad and short .- sheath open ; panicle lax -. inferior branches 2-3-»«te ; 

 2 flower twice as long as the sterile glumes. 



44. Z. americana, W. Leaves ovate, pointed : petiole, 2-lobed ligule, and constricted 

 nodes glabrous ; inferior branches of the green panicle ternate ; fertile 2 glume awned at 

 the summit, as long as or little longer than the lower internode of the rhachis : awn erect, 

 half as loug as or little shorter than the flower. — Br. Jam. t. 4./. 3 — Apluda Zeugites, L., 

 Sw.—l'-2 r high ; leaves 2"-l" long, 10"'-6'" broad. Of the Continental congeners, 

 Z. mericana, Tr. {Bespretzia, Kth.), has awnless spikelets, and the lowest <? flower less 

 distant, and Z. colorata, Gr. (Venezuela, Pendl. coll. 2526), oblong-lauceolate leaves, 

 petioles pubescent within at the summit, coloured spikelets and the $ flower very shortly 

 mucronate.— Hab. Jamaica!, all coll., in the woods of the Blue Mountain's, from 4000' up- 

 wards to the summit. 



