GRAMINEA., 547 
Rocky Mountains and Puiains.—NortH Mexico, San Luis Potosi (Virlet @ Aoust) ; 
Sourn Mexico, Mineral del Monte (Schaffner), along the canal, near Mericalcingo 
(Bourgeau), Cuernavaca (Schaffner). 
12. Sporobolus purpurascens, Hamilt. Prodr. Fl. Ind. Occ. p.5; Kunth, Enum. 
PL.i. p. 211; Griseb. Fl. Brit. W. Ind. p. 533. 
Agrostis purpurascens, Swartz, Prodr. Fl. Ind. Occ. p. 95, et Fl. p. 185; Ch. et Schl. in Linnea, vi. 
. 37. 
Vilfa purpurascens, Beauv. Agrostogr. p. 16; Trin. Agrostidea, i. p. 52; Fourn. Mex. Pl. Enum., 
Gram. p. 98. 
South Mexico, Hacienda de la Laguna, near Jalapa (Schiede & Deppe), Orizaba 
(Miller, 2116, 2118; Bottert ; Bourgeau, 2753), Cordova (Schaffner).—Brazit; Wust 
Inpies. Hb. Kew. 
Under Vilfa Fournier (Mex. Pl. Enum., Gram. p. 98) describes the following pro- 
posed new species of this affinity:—V. grisebachiana (Orizaba, Bourgeau, 32; Cuba, 
Wright, 3427), V. miillert (Orizaba, Miller, 2117), and V. densiflora (Orizaba, Bot- 
teri, 139). 
13. Sporobolus ramulosus, Kunth, Revis. Gram. i. p. 68, et Enum. Pl. i. 
p. 216. 
Vilfa ramulosa, H.B.K. Nov. Gen. et Sp. i. p. 187, et vii. t. 684; Trin. Agrostidea, i. p. 61; 
Fourn. Mex. Pl. Enum., Gram. p. 101. 
Agrostis ramulosa, Roem. et Schult. u. p. 361. 
Nortu Mexico, San Luis Potosi (Virlet d’ Aoust) ; Soura Mexico, Volcan de Jorullo 
at 2760 feet (Humboldt & Bonpland), Desierto Viejo (Bourgeau, 1308), San Nicolas, 
near Mexico (Bourgeau, 1028), Orizaba (Schaffner). Hb. Kew. 
Under the name of Vilfa confusa, Fournier, loc. cit., describes an allied species from 
the same localities, but we have seen none of the specimens he cites. It is characterized 
as follows :—“ Differt a V. ramulosa pedicellis linearibus longis flexuosis erectis sub 
florem incrassatis obconicis, non rigidis brevibus divaricatis tequaliter crassioribus, flore 
ovali non apice attenuato, glumis equalibus, palea superiore non mucronata.” 
14. Sporobolus repens, Presl, Reliq. Henk. i. p. 241; Kunth, Enum. Pl. i. 
p. 216. 
Vilfa repens, Trin. Agrostidea, i. p. 80; Fourn. Mex. Pl. Enum., Gram. p. 101. 
Nortx Mexico, San Luis Potosi (Virlet d’ Aoust) ; Sours Mexico, Orizaba (Bourgeau, 
3285; Schaffner ; Miller, 2007), barranca de Tlatengo (Liebmann), Rancho del. Valno 
(Karwinski). Also in Bottvia, according to Fournier. Hb. Kew. 
: 15. Sporobolus virginicus, Kunth, Revis. Gram. i. p. 67, et Enum. Pl. i. 
p. 210; Griseb. Fl. Brit. W. Ind. p. 533; Benth. Fl. Austr. vii. p. 621; Hemsl. Bot. 
Chall. i. p. 80, et 11. p. 131. ‘ 
Vilfa virginica, Beauv. Agrostogr. p. 26; Trin. Agrostidea, i. p. 48, et Sp. Gram. Ic. et Descr. 
t. 48; Doll in Mart. Fl. Bras. ti. 3, p. 30; Fourn. Mex. Pl. Enum., Gram. p. 100. 
4a2 
