GRAMINEiE. 551 



halt-terete, twice as long as the 2 hasilar appendages. — Stems 3'-4' high, several from a 

 fibrous root ; leaves 4"-3" long, li"-f " broad j panicle 2"-6", spikelets 3'" long.— Hab. 

 Trinidad!, Cr.; [Brazil]. 



116. P. ichnodes, Gr. fyi.sp.). Stout, leafy below; leaves long, lanceolate-linear, 

 acumiuate, hairy, or glabrate, sessile : midrib prominent beneath : sheath long-pilose, or 

 ciliate, snboompressed, loose ; panicle diffuse : branches compound, fascicled, inferior 

 whorled, hairy at the base : spikelets oval, bluntish, much shorter than the filiform pedi- 

 cels; lowest glume two -thirds to three-fourths as long as the spikelet, 3 -nerved, second little 

 exceeded by the fertile flowers, third $, equalling the latter, both 5-7 -nerved; fertile 

 flower smooth, elliptical-lanceolate, bluntish, half-terete, 4-5 times as long as the 3 basilar 

 appendages. — Structure of Ichnanthus leiocarpus, Kth. Eev. t. 168. (Panicum, Ns., non 

 Tr.), but leaves uarrower, panicle richer (resembling P. maximum), and spikelets half as 

 large. 3'-6' high ; leaves 12"-8" lona, 10"'-8"' broad : hairs long, scattered ; panicle 8"-4", 

 pedicels 6"'-2"', spikelets 1"'-14"' long.— Hab. Trinidad I, Cr., heights of S. Anne. 



Sect. 4. Lasiacis. — Spikelets paniculate, deflexed from the lowest, ventricose glume, 

 usually obovate, blunt : pedicels angular. Fertile flower bearing a tuft of villous 

 down at its summit, and with a dorsal furrow above its basilar callus ; its palea gib- 

 bous above. Sterile glumes leathery-oliartaceous, shining, T-lS-nerved, often with a 

 terminal tuft of hairs, the lowest short. — Stem shrubby. 



This section comprises nearly allied species, and former authors have combined them al- 

 together : but their growth is very different, though in herbaria several forms appear to 

 pass into each other. 



l/^in. P. divaricatum, J. Scandeni, high: branches divaricate; leaves lanceolate- 

 linear, acuminate, glabrous, or slightly puberulous beneath ; panicle few-branched : branches 

 simple, or slightly compound : pedicels unequal :' jytfe/e^* obovate, blunt, green {grovr'mg 

 black in fruit) ; two superior sterile glumes equal ; fertile flowers ellipsoidal, bluntish. — 

 Jacq. Schmnbr. t. 25. — P. bambusoides, Samilt. P. latifolium, var. angustifolium, Tr. {PI. 

 Spruce, Pan. 23). — 8' high (Jacq.), or arborescent (Ham.) : stem size of a goosequiU ( ?J^'»&.) ; 

 leaves 2"-4" long, 2"'-6'" broad ; panicle 2"-4" long. 



o. leaves glabrous; spikelets 2'" long; sterile glumes roundish, two superior 11-13- 

 nerved, as long as the fertile flower. — P. Chauvinii, Steud. 



p. stmostachyum. Leaves glabrous ; spikelets 2'" long ; sterile glumes elliptical, 2 su- 

 perior 7-11-nerved, a little exceeding the fertile flower. 



y. puberulum. Leaves puberulous beneath ; spikelets IJ"' long ; sterile glumes roundish, 

 2 superior 11-13-nerved, as long as the pyriform fertile flower. — P. glutinosum, Lam. 

 {III. t. 43./. 3. rap.) and Mey. {non Sw.). 



Hab. Jamaica !, Al., Wils., March, common in woods (o, ;3) ; Antigua !, Nichols, 

 Wullschl. (o), Dominical, Imr. (/3) ; Trinidad!, Cr. (7) ; [Cuba! to Brazil!]. 



118. P. Sloanei, Gr. Trailing: branches spreading;' leaves oblong-lanceolate, acu- 

 minate, often oblique, glabrous; panicle lax, diverging: branches distant, slightly com- 

 pound : pedicels unequal : spikelets obovate, blunt, green (growing purplish in fruit) ; 

 sterile glumes roundish, 2 superior unequal, 11-13-uerved, second exceeded by the fertile 

 flower, third equalling it ; fertile flower ellipsoidal, bluntish. — SI. t. 71./. B. — P. latifoUum 

 jamaicense, L., Trin., Samilt. P. divaricatum, Frl. (P. arborescens, Sieb. Mart. 267). — 

 I'-several feet high ; leaves 3"-5" long, 9"'-14"' bwad; panicle 5"-ie", spikelets 2'" long. 

 Hab. Jamaica!, Fd., Widlschl., in woods, Manchester ; [Cuba ! to French islands !]. 



119. P. lauatuiu, Sw. ! Erect, stout : branches spreadiiig ; leaves lanceolate, or ob- 

 long-lanceolate, acuminate, oblique at the base, pubescent, dr puberulous; panicle lax, 

 spreading : branches compound, often fascicled : pedicels slender : spikelets obovate, bluntish, 

 purple: 2 superior sterile glumes equal, 9-13 -nerved, as long as the ovoid, blunt fertile 

 flower.— P. agglutinans, BA.— 6'-12' high ; panicle 12"-4", spikelets 14'" long. 



o. Leaves lanceolate, 6"-3" long, 6"'-9"' broad: sheath tubercled, pilose, or villous ; su- 

 perior sterile glumes oval, 9-11-nerved.— 6' high {Sw). 



j8. sorghaidenm, Hamilt. Leaves oblong-lanceolate, puberulous, 6"-8" long, 10"'-20"' 

 broad: sheath little pilose, or glabrous ; superior sterile glumes roundish, 11-13-nerved.— 

 P. megacarpon, Steud. in PI. Lechler, 2219.— 10'-12' high {WiU). . 



