530 GRAMINEA. 
86. Andropogon velatus, Kunth, Enum. Pl. i. p.488; Fourn. Mex. Pl. Enum., 
Gram. p. 61. 
Andropogon vaginatus, Presl, Relig. Henk. i. p. 336, non Elliott ex Fourn. 
Mexico (Henke). 
37. Andropogon virginicus, Linn. Sp. Pl. ed.1, p.1046; Kunth, Enum. PI. i. 
p. 495; Hack. in Mart. FI. Bras. ii. 3, p. 285; S. Wats. in Proc. Am. Acad. xviii. 
p. 174. 
Anatherum virginicum, Spreng. Pug. ii. p. 16, ex Hackel. 
Anatherum domingense, Roem. et Schult. Syst. Veg. ii. p. 809; Griseb. Fl. Brit. W. Ind. p. 559. 
Andropogon domingensis, Fourn. Mex. Pl. Enum., Gram. p. 61. 
MassacHUSETTS southward.—SoutH Mexico, Orizaba (Miller, 1393).— West Inp1Es 
to Brazit. Hb. Kew. 
42. CHRYSOPOGON. 
Chrysopogon, Trin. Fundam. Agrostogr. p. 187; Benth. et Hook. Gen. Plant. iii. p. 1135. 
A genus of about twenty species spread over the warmer regions of both hemispheres 
and extending to Southern Europe and North America. Hackel includes this in| 
Sorghum, and treats most of the forms enumerated below as varieties of one species. 
‘We follow Fournier mainly because we find it impossible, in the absence of authenticated 
specimens, to harmonize the synonymy of the two authors. Bentham appears to have 
regarded C. avenaceus, C. stipoides, C. nutans, and C. minarum as distinct species. 
1. Chrysopogon avenaceus, Benth. in Journ. Linn. Soc. xix. p. 73; Vasey, 
Grasses of U.S. p. 20. 
Andropogon avenaceus, Michx. Fl. Bor.-Am. i. p. 58; Kunth, Enum. Pl. i. p. 503; Fourn. Mex. 
Pl. Enum., Gram. p. 56. 
Sorghum avenaceum, Chapm. Fl. Southern U.S. p. 583. 
Andropogon ciliatus, Elliott, Sketch, i. p. 144. 
Andropogon stipoides, H. B. K. Nov. Gen. et Sp. i. p. 189; Kunth, Synopsis, i. p. 243, non Enum. 
Pl. i. p. 487. 
Sorghum nutans, A. Gr., subspecies a. avenaceum, Hack. in Mart. Fl. Bras. ii. 8, p. 274. 
Andropogon humboldtianus, Steud. Gram. p. 892. 
Andropogon albescens, Fourn. Mex. Pl. Enum., Gram. p. 56? 
Carouina to Fiorrpa and Trxas.—Norra Mexico, San Luis Potosi (Virlet @ Aoust). 
—CoLoMBIA. to BRAZIL. 
2. Chrysopogon francavillanus, Hemsl. 
Andropogon francavillanus, Fourn. Mex. Pl. Enum., Gram. p. 56. 
Andropogon stipoides, Ch. et Schl. in Linnea, vi. p. 39, non H. B. K. nec Kunth ex Fourn. 
Andropogon condensatus, Rupr. in Bull. Acad. Brux. ix. (reprint, p. 18), non H. B. K. 
South Mexico, without locality (Schiede & Deppe), Orizaba (Botteri, 140; Miller, 
2002), San Juan del Rio (Bourgeau, 2871), Mirador (Galeotti, 5711). Hb. Kew. 
The Brazilian specimens referred to this by Fournier are said by Hackel to belong to 
