24 Contributions from the Gray Herbarium 
9390; Rio Grande, 1848, Wright 290. Coanuiza: hills nearDiaz, 
210 m., 1900, Pringle 8315. 
Fendler 354, basis of Dr. Gray’s scarcely defined name glaber, 
I have not been able to find in the Gray Herbarium. Fendler 394, 
also referred to this name by Dr. Gray, is an intermediate nearer 
var. genuinus. Wright 1190 is an intermediate connecting this 
variety with var. scabrellus. 
/ A. sprnuLosus var. glaberrimus (Rydb.), comb. nov. Caulis ut 
folia glaber vel subglaber vel subglabratus (sed glandulosus). 
Involucri phyllaria glabra margine ciliato vel glanduloso vel glan- 
duloso-ciliolato excepto. Ceterum ut apud var. genuinum. — St- 
deranthus glaberrimus Rydb. ! Bull. Torr. Club xxvii. 621 (1900). 
S. spinulosus var. glaberrimus (Rydb.) A. Nels in Coulter & Nelson, 
Man. Bot. Rocky Mts. 499 (1909).— 8S. D. to Wyo. and Tex. 
few representative collections may be cited. — Kansas: Shear 
194; Hitchcock 222 in part (Hamilton Co., 2 Aug. 1905). 
Nepraska: Clements 2718; Middle Loup River near Thedford, 
19 Aug. 1893, Rydberg 1403 (rypPE couu.). OxLaAnoma: Hunts- 
ville, 30 May 1896, L. A. Blankinship. Texas: Heller 1858; sandy 
soil on the Liano, Aug. 1848, Lindheimer (fase. IV.). — Lind- 
heimer’s plant is noteworthy for its very narrow leaf-segments. 
/ A. SPINULOsUs var. scabrellus (Greene), comb. nov. Caulis ut 
folia glabratus vel subglabratus vel subcanescenter piloso-hispidus 
’ pilis patentibus brevibus et plus minusve glandulosus non lanato- 
pilosus. Folia inferiora pinnatifida segmentis oblongis integris vel 
pinnatifidis latitudinem laminae non superantibus, media et 
superiora lineari-oblonga dentata dentibus deltoideis brevissimis 
integris vel subdentatis. Involucrum dense glandulosum, phylla- 
rlis apice breviter herbaceis saepe patentibus vel reflexis. — 
Eriocarpum scabrellum Greene | Erythea ii. 108 (1894). E. serra- 
tum Greene, Bull. Torr. Club xxv. 119, t. 331, f. 3-4 (1898). — 
Chiefly Mexican.—Conorapo: Baker 79. Texas: Tracy & 
Earle 35a. New Mexico: Metcalfe 83, 1373; J. Skehan 72; 
Wooton 32. Lowrr Cauirornta: La Paz, 1890, Palmer 17; La 
Paz, Brandegee; foothills, Los Angeles Bay, Dec. 1887, Palmer 539 
(TyPE cot. of E. scabrellum). Curmuanva: Palmer 49 (anno 
1908); E. Stearns 83. Coanuia: Nelson 3928; Purpus 4478; 
Gregg 5, 6; Palmer 62 (anno 1898). Nuzvo Luon: Palmer 474 
(anno 1880). Duranco: Palmer 278 (anno 1896), 587 (anno 
