§32 GRAMINEZ. 
eastern States.—SoutH Mexico, along the canal near Santa Anita, in the valley of 
Mexico (Bourgeau, 531).—Evrorg and Temperate Asia. Hb. Kew. 
Fournier refers Bourgeau’s number 531 to Phalaris americana, Elliott, which is a 
synonym of the very different P. intermedia, Bosc. The error seems to have arisen 
from the fact of Elliott having cited the P. arundinacea of Michaux’s ‘ Flora Boreali- 
Americana’ (i. p. 43) as a synonym of the weak annual grass he described and named 
P. americana. 
44, HIEROCHLOE. 
Hierochloe, Gmel. Fi. Sibir. i. p. 100; Benth. et Hook. Gen. Plant. iii. p. 1139. 
About eight species inhabiting the mountainous and frigid regions of the northern 
hemisphere, Australia, New Zealand, South Africa, and extratropical South America. 
1. Hierochloe mexicana, Benth. in Journ. Linn. Soc. xix. p- 77, et in Benth. et 
Hook. Gen. Plant. iii. p. 1139. 
Ataxia mexicana, Rupr. in Bull. Acad. Brux. ix. (reprint, p. 7), nomen tantum; Fourn. Mex. PI. 
Enum., Gram. p. 71, descriptio. 
Sout Mexico, Cordillera of Oaxaca at 8000 feet (Galeotti, 5756). Hb. Kew. 
Tribe VIII. AGROSTIDEA. 
Agrostidee, Benth. et Hook. Gen. Plant. iii. pp. 1076 et 1084. 
Thirty-eight genera are included in this tribe; sixteen of them are monotypic, yet 
the tribe is very rich in species, which are spread over the whole area of the order. 
Thus Aristida, Stipa, Sporobolus, Agrostis, and Deyeuxia average one hundred species 
each. 
45, ARISTIDA. 
Aristida, Linn. Gen. Plant. n. 94; Benth. et Hook. Gen. Plant. ii. p. 1140. 
Species numerous, probably exceeding one hundred, and very widely dispersed in the 
warmer regions of both hemispheres; rare in Europe and Extratropical Asia; several 
in North America north of Mexico. 
1. Aristida barbata, Fourn. Mex. Pl. Enum., Gram. p. 78. 
Sour Mexico, valley of Mexico (Schaffner). 
2. Aristida capillacea, Lam. Ill. i. p.156; Presl, Reliq. Henk. i. p. 224; Trin. 
et Rupr. Sp. Gram. Stip. p. 110; Doll in Mart. Fl. Bras. ii. 3, p.21; Fourn. Mex. Pl. 
Enum., Gram. p. 77, 
Chetaria capillacea, Beauv. Agrostogr. p. 158. 
Chetaria capillaris, Nees, Agrostol. p. 388, excl. syn. Cav., et in Seem. Bot. Voy. ‘ Herald,’ p. 225. 
Mexico (Karwinski ex Trin. et Rupr.); Panama (Henke), Santiago, Veraguas 
(Seemann, 134).—Cotomsia to Peru, Guiana, and Brazit. Hb. Kew. 
[Aristida chapadensis, Trin., A. wmplexa, Trin., and A. riparia, Trin., Brazilian 
species, are recorded from Mexico, doubtless erroneously, by Steudel, Gram. p. 136.] 
