GREENMAN. — SPERMATOPHYTES FROM MEXICO, ETC. 265 



spreading or subreflexed, inner involucral bracts lanceolate to lance- 

 oblong, obtuse : ray-flowers 5 to 6, sterile ; rays short-oblong, 4 to 5 mm. 

 long, nearly as broad, orange-yellow : disk-flowers about 20 : mature 

 .achenes linear, 2 to 6 mm. long, glabrous or sparingly hispidulous, awn- 

 less or with reduced awns. — Mexico. Federal District : Serrania de 

 Ajusco, Ajusco Station, altitude 2895 m., 9 November, 1903, C. G. 

 Pringle, uo. 11,486 (hb. Gr.) This plant was distributed as " Bidens 

 ferulaefolia, DC," but the prostrate habit, the small leaves and heads, 

 and the short rays amply distinguish it from that species. 



Bidens Seemannii, Schz. Bip. in Seem. Bot. Herald, 307 (1852-57) ; 

 Hemsl. Biol. Cent.-Am. Bot. ii. 203, as to plant of Seemann, not of 

 Parry and Palmer. B. Seemanni, Gray, Proc. Am. Acad. xix. 16. 

 Cosmos Seemanni, Gray, 1. c. This species has been referred both to 

 Bidens and to Cosmos. The mature achenes are linear, elongated, 13 mm. 

 or less in length and nearly of the same diameter throughout, but not 

 attenuated above into a beak as in true Cosmos. Certainly if the two 

 genera are to be kept separate the above species must be retained in the 

 genus Bidens, where it was originally placed by Schultz Bipontinus. 

 Besides the original specimen collected by Seemann, fragments of which 

 are in the Gray Herbarium, and the Ghiesbreght plant cited by Dr. Gray 

 in the paper referred to above, there are now at hand excellent specimens 

 collected by Mr. C. G. Pringle in fields, near Uruapan, State of Micho- 

 acan, altitude 1525 m., 8 October, 1904, no. 8845 (hb. Gr.). The finely 

 divided pinnatisect leaves, the deep purple rays, and the long linear 

 smooth-bodied usually 6-awned achenes render this species one of the 

 most striking and easily recognized of the entire genus. 



Cosmos ocellatus, n. sp. Annual : stem erect or ascending, sim- 

 ple or branched, 3 to 5 dm. high, more or less pubescent with crisp 

 jointed hairs : leaves opposite, petiolate, 2 to 8 cm. long including the 

 petiole, 1.5 to 4 cm. broad, bi-tripinnately parted, dark green above, 

 pale beneath, subappressed-pubescent on both surfaces ; segments lance- 

 olate or lance-linear, acute ; petioles 0.5 to 4 cm. long, pubesceut : heads 

 1.2 to 2 cm. high, including the rays 3 to 4 cm. in diameter, borne on 

 long naked striate somewhat pubescent peduncles 1 to 2 dm. in length : 

 involucre double, the outer bracts subfoliaceous, linear or lance-linear, 

 callous-tipped, 8 to 10 mm. long, densely pubescent with long jointed 

 somewhat interwoven hairs ; inner involucral-bracts narrowly elliptic- 

 ovate, acutish, yellowish-brown in color, scarious-margined : ray-flowers 

 about 8, sterile; rays obovate-oblong, 1.5 cm. long, two-thirds as broad, 

 notched with a broad truncated notch, orange-yellow, usually with a 



