GRAMINEZ. 511 
Tribe II. MAYDE. 
Maydee, Benth. et Hook. Gen. Plant. iii. pp. 1075, 1078. 
This tribe comprises only eight small genera, the majority of which are American. 
Coiz alone is represented in Africa. 
17. COIX. 
Coiz, Linn. Gen. Plant. n. 1043; Benth. et Hook. Gen. Plant. iii. p. 1112. 
Species three or four, one of which (C. lacryma) is now almost generally diffused in 
the tropics, either wild or naturalized, though it does not appear to have reached 
Australia ; the others are restricted to India. 
1. Coix lacryma, Linn. Sp. Pl. ed. 1, p. 972; Kunth, Enum. Pl. i. p. 20; Doll 
in Mart. Fl. Bras. ii. 2, p. 30, t. 10; Griseb. Fl. Brit. W. Ind. p. 561; Lam. II. t. 50. 
Coix arundinacea, Lam. Encycl. iii. p. 422, non Koenig in Willd. ; S. Wats. in Proc. Am. Acad. 
Xvili. p. 173; Steud. Gram. p. 9. 
Nort Mexico, Saltillo, Coahuila (Palmer, 1337). Hb. Kew. 
Grisebach treats this as an introduced plant in the West Indies, whilst Déll seems to 
have regarded it as indigenous in South America. The only Mexican specimen that we 
have seen is Palmer’s, cited above, and there is no specimen in the Kew Herbarium from 
any part of Central America. Seemann does not include it in his “Flora of Panama” 
(Bot. Voy. ‘ Herald’), nor Fournier in his enumeration of Lévy’s Nicaraguan grasses 
(Bull. Soc. Bot. France, xxvii. p. 292). Nevertheless Lamarck founded his Coix arundi- 
nacea, in part at least, on a figure in Hernandez’s ‘ Rerum Med. Nov. Hisp. Thesaurus’ 
(p. 282, figura dextra), and Hernandez cites two Mexican names for it ; hence, if ori- 
ginally introduced into Mexico, it was probably at a somewhat remote period. This 
grass is now so common in most hot countries that collectors often neglect to preserve 
specimens, and sometimes, when specimens of naturalized plants are sent, they are not 
incorporated in the herbarium; and these circumstances are sufficient to explain the 
absence of Mexican and Central-American specimens at Kew. 
18. TRIPSACUM. 
Tripsacum, Linn. Gen. Plant. n. 1044; Benth. et Hook. Gen. Plant. iii. p. 1118. 
The genus is limited to the following American species. Fournier distinguishes four 
species. 
1, Tripsacum dactyloides, Linn. Sp. Pl. ed. 2, p. 1378; Kunth, Enum. Pl. i. 
p. 469; Hackel in Mart. FI. Bras. ii. 8, p.316; A. Gr. Man. Bot. Northern U.S. ed. 5, 
p- 650; Benth. Pl. Hartw. p. 28. 
Tripsacum monostachyum, Willd. Hort. Berol. i. t. 1; Griseb. Fl. Brit. W. Ind. p. 557. 
Tripsacum lanceolatum, Rupr. in Benth. Pl. Hartw. p. 347 (nomen tantum) ; Fourn. Mex. Pl. Enum. ; 
Gram. p. 68, cum £. monostachys (descriptio). 
Tripsacum compressum, Fourn. in Bull. Soc. Bot. Belg. xv. p. 465. 
