586 GRAMINEZ. 
3. Elymus virginicus, Linn. Sp. Pl. ed. i. p. 84; A. Gr. Man. Bot. Northern 
U. S. ed. 5, p. 639; Chapm. Fl. Southern U. S. p. 567; Fourn. Mex. Pl. Enum., Gram. 
p. 149. 
CanaDa to Fiorma and Texas.—SoutH Mexico, Orizaba (Thomas ; Miller, 2080; 
Bourgeau, 3142; Schaffner). Hb. Kew. 
Tribe XIII. BAMBUSEA. 
Bambusee, Benth. et Hook. Gen. Plant. iii. pp. 1076 et 1094. 
This Tribe is almost wholly tropical and subtropical; its coldest limits being in 
China, Japan, Illinois, the Andes and Juan Fernandez. Only one member of the tribe 
is at present known to be indigenous in the whole of Africa, and no species is described 
in Bentham’s ‘ Flora Australiensis,’ but more recently, according to Miller (Fragm. 
Austr. vi. p. 85, and xi. p. 129), flowerless specimens of three species have been 
collected in Queensland and North Australia. Only one (or two) species of the Bam- 
busee occurs in America, north of Mexico. There are twenty-two genera, comprising 
about seventy-five species. 
102. ARUNDINARIA. 
Arundinaria, Michx. Fl. Bor.-Am. i. p. 73; Benth. et Hook. Gen. Plant. iii. p. 1207. 
A genus of about twenty-four species, inhabiting tropical and subtropical America 
and Asia, reaching Maryland and Illinois in the former, and Japan in the latter. 
1. Arundinaria acuminata, Munro in Trans. Linn. Soc. xxvi. p. 15; Fourn. 
Mex. Pl. Enum., Gram. p. 131. 
South Mexico, Vera Cruz and Xalcomulco (Liebmann). Hb. Kew. 
2. Arundinaria longifolia, Fourn. Mex. Pl. Enum., Gram. p. 131. 
Sovta Mexico, Jicaltepec and Pital (Liebmann), Jicaltepec (Karwinski). 
103. ARTHROSTYLIDIUM. 
Arthrostylidium, Rupr. in Mém. Acad. St. Pétersb. sér. 6, v. p. 117, tt. 8-5; Benth. et Hook. 
Gen. Plant. ui. p. 1208. 
An exclusively Tropical American genus of twelve described species. 
1. Arthrostylidium racemiflorum, Steud. Gram. p. 336; Munro in Trans. 
Linn. Soc. xxvi. p. 44. 
Merostachys racemiflora, Fourn. Mex. Pl. Enum., Gram. p. 131. 
SovutH Mxxico, without locality (Ghiesbreght), Potrero (Hahn), Mirador, Zacuapan, 
and Dos Puentes (iebmann).—VeEnEzuELA. Hb. Kew. 
104. CHUSQUEA. 
Chusquea, Kunth, Syn. Pl. Orb. Nov. i. p. 254; Benth. et Hook. Gen. Plant. iii. p. 1209. 
An exclusively American genus of about thirty species, ranging from Mexico and 
the West Indies, through the Andes to Chili and Juan Fernandez. 
