1917] SHERFF—BIDENS 39 
T. S. Brandegee, in vicinity of San Luis Tultitlanapa, Puebla, near the 
Oaxaca boundary line, Mexico, in 1908 (first type sheet in Herb. Univ. Cal., 
herb. no. 134267, and second type sheet, dated July, also in Herb. Univ. Cal., 
herb. no. 134268); C. A. Purpus 4429 (in vicinity of San Luis Tultitlanapa, 
Puebla), Oaxaca, Mexico, August 1 
species having at times all the ‘lentes tripartite and then deceivingly 
like B. leucantha (L.) Willd. except as to achenes. The description is drawn 
mainly from the two flowering specimens on the first type sheet, but the 
achene characters are described from the single fruiting head present on the 
writings ae exteyled our knowledge of this genus to a considerable extent. 
Recently, Dr. Smney F. BLAKE has sent from Gray Herbarium 
a specimen of Bidens that appeared to him as allied with Bidens 
rubifolia H.B.K., but none the less new. The plant was collected 
by Hotway in Guatemala early in the present year, and is described 
by him as “climbing over trees 40-50 — and then dropping down 
nearly to the ground.” Its heads, i asure about 6 cm. 
in diameter. From B. rubifolia it may easily be recognized in 
behead specimens by its large involucre and the unique char- 
acters of the involucral bracts. + detailed description is peeento 
here: 
Gelcie Visine Shcee and Hiake: sp. nov.—Herba scandens, 
-caule demum 20-30 m. longo, ascendente (ex Hotwayo) in altitu- | 
dinem 12-15 m.; ramis tetragonis, glabris, striatis. Folia opposita, 
petiolata, petiolo adjecto 6-18 cm. longa, tripartita aut summa indi- 
visa, ciliata, supra glabrata (nisi ad venas), infra plus minusve 
piloso-hispida, serrata; foliolis lateralibus ovatis aut ovato-lanceo- oe 
latis, terminali ovato-l: dla aut | 1. to. ‘Petioli I. - 5 4em. 2 Q 
