48 | Contributions from the Gray Herbarium 
fimbriate, 0.8 mm. long.—Gymnolomia flava Hemsl. ! Biol. 
Centr.-Am. Bot. ii. 161 (1881); not Rob. & Greenm. Proc. Bost. 
Soc. Nat. Hist. xxix. 101 (1899). Viguiera Ghiesbreghtii Gray ! 
Proc. Am. Acad. xix. 6 (1883); Rob. & Greenm. 1. ¢. 88, 101 (1899). 
Gymnolomia decumbens Rob.! Proc. Am. Acad. xxvi. 165 (1891); 
Rob. & Greenm. |. ¢. 101 (1899). — Divisible into two varieties 
distinguished by the presence or absence of pappus and of pubes- 
cence on the achene, sometimes growing together and not separable 
by any other character. Each has a long-leaved and a short- 
leaved form, and each a form with short-and-appressed and with 
long-and-spreading pubescence. 
Var. genuina: achenio glabro, pappo nullo. — Gymnolomia flava 
Hemsl. 1. c. V. Ghiesbreghtii Gray, 1. ¢. as to specim. in part. 
G. decumbens Rob. 1. ec. — MEXICO: Stars or MExico: rocky 
hills, Tultenango, 3 Sept. 1890, Pringle. 3263 in part (TYPE COLL. 
of G. decumbens: G.); grassy slopes, Tultenango Station, 2530 m., 
7 Oct. 1902, Pringle 9918 (G.); Micnoacan: pine forests near 
Morelia, Sept., Ghiesbreght 381 in part (TYPE coLL. of V. Ghies- 
breghtti: G.); Oaxaca: Ghiesbreght 216 (tyPE of G. flava: K., 
tracing G.). — T. 3. Fia. 3. 
Var. papposa, nom. nov.: achenio pubescente, cum pappo V7- 
guierae normali praedito. — Viguiera Ghiesbreghtit Gray, 1. c. in 
part. — MEXICO: Durango: near City of Durango, 1896, 
Palmer 824 (G., U.S.); Svare or Mexico: rocky hills, Tultenango, 
3 Sept. 1890, Pringle 3263 in part (ryPR coun. of G. decumbens: 
B. M., G.); Micnoacan: pine forests near Morelia, Sept., Ghies- 
breght 381 in part (TYPE COLL. of V. Ghiesbreghtit: G.). — The pap- 
pus is said by Gray to be deciduous in the type, but it is strongly 
persistent in the ripe achenes of Palmer’s and Pringle’s plants. 
Dr. Gray’s statement is undoubtedly due to the fact that his type 
sheet has one specimen of var. genuina, with glabrous epappose 
achene, and one of var. papposa with the normal pappus of Viguz- 
era. -— T. 3. Fie. 2. 
3. V. URTICIFORMIs (DC.) Hemsl. Herbaceous, the stem terete, 
purplish, densely tuberculate-hispid with spreading or reflexed 
hairs, 1-2-headed. Leaves except the uppermost opposite or 
sometimes nearly all alternate, oblong-lanceolate to lance-ovate, 
acute to acuminate, cuneate to rounded at base, obscurely serrate, 
3-nerved, dull green above, scabrous with tuberculate-based hairs, 
