550 GRAMINE& 



ellipsoidal, glabrous ; lowest glume short, blunt, 3-5-nerved, 2 superior equalling the fertile 

 flowers, 7-9-nerved, third with a palea, but neutral ; fertile flower smooth, ellipsoidally 

 pointed, half-terete.— P. elatius, JOA.— 6'-30' high, 4'"-6"' thick: leaves I'-li' long, 

 12"'-15"' broad ; panicle I'-l^', its branches 6"'-8"', spikelets li'" long.— Hab. Trinidad !, 

 Cr., in savannahs ; [Mexico 1 to Brazil]. 



Sect. 3. ICHNANTUUS, p. B. — Character of Virgaria,, hut fertile flowers with two marginal 

 keels or ligular appendages at the hose, and exterior glumes less unequal. — Leaves ovate, 

 or lanceolate. 



* Ligular appendages of the flower wanting. 



111. F. alsinoides, Or. {n. sp.) Creeping, delicate, softly pilose (or glabrescent) ; 

 leaves ovate, acuminate, oblique at the sessile base; panicle few-branched : branches short, 

 simple : pedicels short : spikelets oblong-lanceolate, acuminate, erect ; lowest glume two- 

 thirds as long as the spikelets, 3-nerved, 2 superior 5'-nerved, exceeding the fertile flower, 

 third neutral, with a palea ; fertile flower smooth, elliptical-lanceolate, bluntish, compressed 

 from the back : basilarfurrows keeled: keels decurrent to the callus below the flowers. — Nearly 

 allied to the following, aud probably not distinguished from it by Swartz, but habit of F. 

 stoloniferwm, down soft, and proportions of the glumes different. Stems usually 3"-5" long, 

 ascending from branched, rooting stolons ; leaves 8"'-12"' long, 3"'-4"' broad, hairy on both 

 sides (or glabrescent) ;«panicle 6"'-12"' long, often interrupted below : spikelets li"'-2"' 

 long, glabrescent, or hairy at the second glume, the latter equalling or exceeding the third, 

 simply acuminate or with an awn-like point. — Hab. Jamaica 1, March ; St. Kitts ! ; Trini- 

 dad !, Pd., in dense shady woods ; [Venezuela !, Ecuador !]. 



112. P. nemorosum, Sw. Creeping-difl'use, hairy, or glabrescent ; leaves ovate, or 

 ovate-lanceolate, pointed, oblique at the half-clasping base ; panicle nuTtovf, few-branched: 

 branches short, simple ; pedicels short : spikelets elliptical-oblong, erect : 3 sterile glumes 

 subequal, or slightly unequal, exceeding the fertile flowers, lowest 3-nerved, 2 superior 

 5-nerved, third $ with a palea ; fertile flower smooth, oblong, bluntish, nearly half-terete, 

 2-keeled at the base : keels decurrent to the callus below the flower. — Trin. Ic. t. 210. — 

 l'-2' long ; leaves l"-2" long, 4"'-8"' broad : hairs spreading from tubercles ; panicle l''-^", 

 spikelets 2"'-li"' long. — Hab. Jamaica (Sw.) ; [Haiti; Venezuela !]. 



113. P. pallens, Sw. Ascending, branched, ^/airo«* (except at the ciliate sheaths); 

 leaves ovate-lauceolate, acuminate, oblique at the ciliate, sessile base ; panicle spreading : 

 branches simple, or inferior compound, racemiform : pedicels angular : spikelets elliptical- 



' oblong, erect ; lowest glume three-fourths to one-half as long as the spikelets, 3-5-nerved, 

 3 superior 5-7-ncrved, exceeding the fertile flowers, third usually (J, with a ^sHea; fertile 

 flowers smooth, oblong, blunt, nearly half-terete ; basilar furrows keeled : keek decurrent 

 to the narrow callus below the flowers. — Trin. Ic. t. 211. — Variable, l'-3' high; leaves 

 2"-5" long, 6"'-18"' broad ; panicle 2"-6", spikelets li"'-2i"' long.— Hab. Jamaica !, fd., 

 Wils., Wullschl., common in woods; Antigua!, Wullschl., Dominica!, Imr.; Trinidad!, 

 Cr. ; [Cuba ! and Mexico ! to Buenos Ayres ! ; Australia I ; East Indies !]. 



** Fertile flower with two ligular appendages at the base. 



114. P. nemorale, Schrad. Erect, leafy ; leaves oblong-lanceolate, acuminate, striate, 

 glabrous, petioled : sheath ciliate, or villous ; panicle spreading : branches scattered, simple, 

 or compound : pedicels geminate, short : spikelets oblong, with a bluntish point, erect; all 

 glumes subequal, or the lowest one-third shorter, the latter 3-5-nerved, 2 following 5-7- 

 nerved : nerves costate ; fertile flower smooth, oblong-lanceolate, bluntish, half-teret*, 

 thrice as long as the 2 basilar appendages. — IHn. Ic. t. 217 — P. Martianum, Ns. Ich- 

 nanthus almadensis, Kth.. — 1'-2'(-5') high, variable : our Trinidad form (P. Sabiuei, TV.) has 

 ensate, glabrous leaves, simple panicle-branches, and the lowest glume shorter than the 

 others. Leaves 6"'-4"' broad ; spikelets 2"' long.- Hab. Trinidad I, Cr. ; [Brazil !] 



115. P. lagotis, Trin. Erect, leafy; leaves ovate-oblong, or ovate-lanceolate, ^ojk^ 

 leted, striate, glabrous, petioled : sheath ciliate ; panicle lax : branches scattered, or gemi- 

 nate, simple : pedicels unequal, angular : spikelets elliptical-lanceolate, pointed, erect ; 

 lowest glume half as long as the spikelet, 3-5-nerved, 2 superior equalling the fertile 

 flowers, 5-7 -nerved: nerves costate; fertile flowers smooth, oblong-lanceolate, bluntish. 



