GRAMINEjE. 549 



l'-3' high ; leaves 1 V"-$"' broad, petiolcd ; panicle 7"-2", its inferior branches l"-*", spike- 

 lets li"'-li'" long, the latter green. — Hah. S. Vincent!, Guild.; Trinidad!, Cr. ; 

 [Guiana !, Brazil !]. 



105. P. stoloniferum, Pair. Creeping, diffuse, softly hairy; leaves short, striate, 

 oblong-lanceolate, pointed ; panicle short, spreading : branches simple, about twice as long 

 as their internodes: spikelets ovate-lanceolate, glabrous, one-sided, deflexed ; lowest glume 

 short, 3 -nerved, 2 superior subeqiial, almost twice as long as the elliptical-lanceolate, 

 pointed, smooth, half-terete fertile flower. — Klh. Rev. t. 22. Trin. Ic. t. 171. — P. ctenodes, 

 Tr. — Stems 6'" long; leaves 8'" long, 2'" broad, usually equal at the subpetioled, rounded 

 base; panicle 1 "-2", its branches 4"'-6"', spikelets 1'" long, the latter yellowish-green. — 

 Hab. Trinidad!, 6V., common in woods; [Guiana, Brazil]. 



§ 2. Panicle very loose, twice or more divided : inferior branches whorled, or half- 

 whorled : pedicels erect. 



10G*. P. maximum, Jacq. Perennial, stout: nodes ("usually") villous; leaves 

 linear-acuminate or lanceolate-linear, ciliate at the base and ligule ; panicle large : lower 

 branches whorled, racemiform, usually bearing a few bristles : pedicels unequal, filiform : 

 spikelets elliptical-oblong, glabrous ; lowest glume short, ovate-rounded, subincurved, 

 2 superior little exceeding the fertile flower, 3-7-nerved ; third $ with a palea ; fertile 

 fiower transversely wrinkled, half terete. — Jacq. Ic. Rar. t. 13. — P. jumentorum, Pers. 

 P. trichocoudylum, Stead. P. fasciculatum, PI. Carib. (non Sw.) — 5—10' high ; panicle 

 l'-lV, spikelets \\ m long. — Hab. Naturalized and cultivated in Jamaica !, Al. ; Antigua !, 

 Wnllschl. ; S. Vincent, Guild. ; Trinidad ! Lk. ; [Cuba ! and Mexico ! to Buenos Ayres !, 

 ouce introduced from trop. Africa]. 



107. P. elephantipes, Ns. Perennial, stout : nodes glabrous; leaves broadly linear- 

 acuminate, filiate at the base and ligule, delicately hairy on the upper side, glabrous beneath 

 and at the sheath ; panicle large : lower branches whorled, all diffuse : pedicels unequal, 

 angular : spikelets oblong-lanceolate, glabrous ; lowest glume short, ovate-deltoid, 1-nerved, 

 2 superior little exceeding the fertile flower, 7-5-nerved, third devoid of a palea ; fertile 

 flowers smooth, compressed from the back, acuminate. — P. fistulosum, Hochst. — Stem %" 

 thick below, constricted at the brown nodes ; leaves long, 4" -8'" broad ; panicle pale green, 

 1'— 1-J', spikelets 1-J-'"— 2'" long. — Hab. Jamaica!, Pd., iu ditches, in the great morass of 

 Westmoreland j [Guiana !, Brazil !]. 



10S. P. Rudgei, R. S., Ns. Woody below, rigid : nodes sericeous ; leaves linear- 

 acuminate : sheath hispid with the bristles inserted into tubercles ; panicles very diffuse, 

 terminal and axillary subapi>roximate, subsessile : lowest branches fascicled : pedicels long, 

 slender, angular: spikelets ellipsoidal, mucronate, lowest glume ovate-lanceolate, 5-9- 

 nerved, exceeding half the spikelet, 2 superior exceeding the fertile flower, 7-9-nerved, 

 third $ with a palea ; fertile flower smooth, elliptical, bluntish, compressed from the back. 

 — Rudg. Guian. 1. 29. — P. scoparium, Rudg. (non Mich.) P. cayennense, var. majus, Tr. 

 P. cayennense, I/am. (P. cayennense, var. minus) is a very different, annual grass, belonging 

 to Miliaria. — 4-6' high, l£"'-2"' thick, variable in down; inferior leaves 3"'-5"' broad ; 

 inflorescence l'-3' long: the axillary panicles often exceeded by their supporting leaf; 

 spikelets l'"long. — Hab. Trinidad!, Cr., in savanmihs; [Guiana!, Brazil!]. 



109. P. hirsutum, Sw. ! Woody below, erect : nodes sericeous ; leaves long, lanceo- 

 late-linear, glabrous, ciliate at the ligule : sheath hispid with spreadi ng-erect bristles ; panicle 

 large : lower branches half-whorled, secondary racemiform : pedicels unequal, angular : 

 spikelets, ellipsoidal, glabrous ; lowest glume ovate, pointed, \-\ as long as the spikelet, 

 h-nerved, 2 superior little exceeding the fertile flower, second 11-, third 9-nerved, the latter 

 ■with a palea, but neutral ; fertile flowers smooth, ellipsoidal, somewhat pointed, slightlv 

 compressed from the back.— 10'-12' (-4') high; lower internodes 8"-10" long, 6"'-8'"" 

 thick ; leaves 2' long, H"-l" broad; panicle l'-2' spikelets 1'"-%'" long.— Hab. Jamaica!, 

 Sw. ; Trinidad!, Cr., Lagoon of Cedros ; [Haiti]. 



110. P. altissimum, Mey. Woody, "arborescent:" nodes glabrous: leaves long, 

 lanceolate-linear, acuminate, glabrous : ligule lacerate : sheath hispid with the deciduous 

 bristles inserted into persistent tubercles ; panicle large : all branches whorled, simple, ra- 

 cemiform, naked below -.pedicels short, distant, irregidarly one-sided, angular: spikelets 



