500 GRAMINEA, 
7. ICHNANTHUS. 
Ichnanthus, Beauv. Agrostogr. p. 56, t.12. fig.1; Benth. et Hook. Gen. Plant. ii. p. 1103. 
Navicularia, Raddi, Agrostogr. Bras. p. 38. 
An exclusively Tropical-American genus of about twenty species, as limited in 
Bentham and Hooker’s ‘ Genera Plantarum.’ 
1. Ichnanthus alsinoides, Munro, MSS. in Herb. Kew. Var.? 
Panicum. alsinoides, Griseb. Fl. Brit. W. Ind. p. 550. 
Nicaragua, Chontales (Tate, 317). Hb. Kew. 
This species, as understood by Grisebach, inhabits the West Indies from Cuba to | 
Trinidad, and South America from Venezuela to Ecuador and Brazil. 
2. Ichnanthus mexicanus, Fourn. Mex. Pl. Enum., Gram. p. 34. 
Sour Mexico, Trapiche de la Concepcion (Liebmann). 
8. Ichnanthus nemorosus, Déll in Mart. Fl. Bras. ii. 2, p. 289. 
Panicum nemorosum, Swartz, F1. Ind. Occ. i. p. 150; Trin. Sp. Gram. Ic. t. 210; Griseb. Fl. Brit. 
W. Ind. p. 550. 
Nicaraava, Chontales (Tate, 222); Panama, Empire Station (S. Hayes, 225).—CoLomB1a 
to Ecvapor and Brazit and in the West Inpizs. Hb. Kew. 
4. Ichnanthus pallens, Déll in Mart. Fl. Bras. ii. p. 290. 
Panicum pallens, Swartz, Prodr. Fl. Ind. Occ. p. 28 ; ‘Trin. Sp. Gram. Ic. t. 211; Griseb. Fl. Brit. 
W. Ind. p. 550; Fourn. Mex. Pl. Enum., Gram. p. 30. 
Panicum hemignostum, Steud. Gram. p. 77, fide Fourn. 
Sovran Mexico, Mirador (Liebmann), Cordillera of Vera Cruz (Galeotti, 5689); Guatz- 
MALA, Chojoja, Mazatenango (Bernoulli, 475); Nicaracua, Pefia Blanca (Tate, 540) ; 
Panama, Chagres (Fendler, 373).— VENEZUELA to PERU and Braziu and throughout the 
West Inpies; also TropicAL Asia. Hb. Kew. 
Grisebach records this from Australia; but there is no specimen in the Kew Herba- 
rium, and it is not included in Bentham’s ‘ Flora Australiensis.’ 
8. OPLISMENUS. 
Oplismenus, Beauv. Fl. Owar. et Benin. ii. p. 14, t. 68, et Agrostogr. p. 58, t.11; Benth. et Hook. 
Gen. Plant. ii. p. 1104 et p. 1102 (Echinochloa, sectio Panict) ; Fourn. Mex. Pl. Enum., 
Gram. p. 37. 
Orthopogon, R. Br. Prodr. Fl. Nov. Holl. p. 194. 
Echinochloa, Beauv. Agrostogr. p. 58, t. 11. fig. 11. 
As limited by Bentham and Hooker (to the section Orthopogon) this genus comprises, 
in their estimation, only three or four species; but we follow Fournier and include 
Echinochloa, because he describes a number of reputed new species in both sections 
which we have not seen, and we wish to avoid adding a single unnecessary name to the 
almost interminable synonymy of some of the widely-dispersed and variable species of 
grasses. 
