GRAMINEJU. 529 



flowers ]0"'-13"', awn g"'-10"' long ; stigmas brown, setaceous, often exceeding the awn.—' 

 Hab. Trinidad !, Or., at S. Anns ; [Southern United States, Guiana]. 



SuBTMBE 2. FESTUCEJE.—Spikelets pedicellate : no excavation of the axis at the hase^ 



of the pedicels . 



Division I. BUOMEM, — SpikeUts usually more than \-jlowered i the uppermost glumes . 

 ■ often imperfect. Awn none or straight. Stigmas projecting laterally from the flower. 



5. ARTHROSTYLIDIUM, Rupr. 



Spikelets laterally compressed, many-flowered : the flowers distant along the jointed rhaohis, 

 with the joints at length seceding : glumes inferior 3-4 sterile, the fertile chartaceous- 

 herhaceous, uppermost imperfect. Lodiculae 3. — Bamboo-lilce trees or shrubs; spilcelets 

 slender, usually distant in fascicled or terminal racemes. 



6. A, pubescens, Rti/pr. Intemodes scabrous ; leaves lanceolate-acuminate, rounded 

 at the petioled base, puberulous above, scabrous at the margin : sheath striate, glabreseent, 

 fimbriate at the summit ; peduncled racemes or flowering branches densely fascicled : spike- 

 lets distant, shortly pedicellate or subsessile ; glumes lanceolate-acftminate, ohsoletely nerved, 

 about twice as long as the intemodes of the rhachis. — Sm/pr. Bambus.f. 14 : analyt. — 

 leaves 4"-5" long, 4"'-9"' broad ; sheath-bristles rusty, 2'" long, deciduous, superior 

 glumes 4'" long ; upper joints of the rhachis caducous. — Hab. Trinidad!, Lockh., Cr.,fm. 

 the summit of the mountains, Tocuehe. 



7. A. excelsum, Gr. {n. sp.) Intemodes smooth ; leaves lanceolate-acuminate or ob- 

 long-lanceolate, rounded at the petioled base, glabreseent, scabrous at the margin : sheath 

 striate, ronghish between the smooth streaks, fimbriate at the summit ; peduncled racemes 

 fascicled or terminal : spikelets distant, shortly pedicellate ; glumes lanceolate-acuminate, 

 striate-nerved, about twice as long as the intevnodes of the rhachis, lowest shorter.— Allied 

 to the preceding and to A. cuhense, Rupr. Stem 60'-80' high, 6"'-12"'diam. {Pd) ; leaves 

 3"-5" long, 9'''-3"' broad ; sheath-bristles tawny, l"'-4"' long, deciduous ; spikelets 6-3- 

 flowered, 12"'-6"' long : superior glumes 4'" long. — Hab. Dominica !, Imr.; Trinidad, Fd., 

 Cr., Las Cuevas hills, Tocuehe. 



6. CHUSQUEA, Kth. 



Spikelets l{-2)-iovievei : the flower approximate to the sterile glumes : inferior sterile 

 glume's 3-4 (rarely the 2 lowest abortive), all devoid of a palea, the fertile chartaceous-herba- 

 ceous. Flower of Arthrostylidium. — Scandent or trailing shrubs, rarely erect and bamboo- 

 like ; spikelets paniculate or racemose. 



8. C. abietifolia, Gr.{n.sp.) Leafy branches fascicled; leaves short, linear-acumi- 

 nate, mucronate-pointed, rigid, serrulate-scabrous at the thickened margin : sheath ciliate 

 with the down at length deciduous ; ligule none ; racemes short, as long as the leaves, 

 spreading, nearly simple: axis angular, scabrous; spikelets 5-10, lanceolate-acuminate: 

 sterile glumes 3, two inferior about half as long as the third, narrow, the latter equalling the 

 single flower, clasping, 5-nerved, acuminate; fertile glume linear-acuminate, puberulous, 3- 

 nerved, a little shorter than the 2-keeled acuminate palea. — " A high climber " (F. Br. : 

 Arundo m 5.) ; intemodes smooth, 3"-5" long, equalling the leafy branches, the older 2'" 

 diam., those of the branches l"'-3"'(-6"') long; leaves l''-2" long, li"'-2"' broad, subses- 

 sile, glauoesoent : strong midrib prominent beneath, impressed above; pedicels V", spikelets 

 3'" long.— Hab. Jamaica !, Wits. ; [West Indies I, 5w.]. 



7. ARUNDO, L. 



Spikelets 2-6(-l)-flowered : the rhachis bearded with silky hairs : glumes membrana- 

 ceous the 2 (-3) lowest only devoid of a palea. Falea short. Stigmas naked below, pro- 

 jecting from the flower at its middle or above it.— Herbaceous or arborescent canes; ligular 

 holier ciliate ; sjAiieiBts in a large.pahicle. - .■ ' 



