NO. 1230. A BEVISIOX OF CERTAIX AXTEXXARLE—XELSON. 707 



Antennaria rosea divaricata subap. no v. 



Stems stout, leafy, 15-20 cm. hioh; loaves rather large, with a more 

 or less elongated petiolar base and narrowly oblanceolate blade, 2-3 

 oni. long, 5-7 nmi. broad, the cauline linear or oblong linear spreading, 

 aliout 25 mm. long. Male plant unknown. 



Ti/jk' locality. — Divide on the road from Custer to Challis, Idaho. 

 Collected by Henderson, no. 3636; type in the United States National 

 Plerbarium. 



Washington (Ehner, no. 2419, 1900) and Idaho to Colorado (Baker, 

 Earle and Tracy, no. 655). 



Antennaria rosea imbricata E. Nelson, comb. nov. 

 .1. imbricata E. NelHOii, Bot. Gaz. 27:211.1899. 



Leaves with obovate or oblanceolate blade, obtusisli, 20-25 mm. 

 long, about 5 nmi. wide, thin in texture, the indument appressed, 

 whitish; involucral bracts (pistillate) broader than in the species, in 

 about four series, imbricated, rose color to nearly white. Male plant 

 unknown. 



Tyjje locality.— ^^ISovth fork of Crow creek in the Laramie hills," 

 Wyoming. Collected by Elias Nelson, no. 2036; type in the Rocky 

 ]\lountain Herbarium, University of Wj^^juiing, Laramie. 



Wyoming and Montana to California (Hall and Chandler, no. 647, 

 in part) and Oregon (Leiberg, no. 516). 



A very good variety, easily distinguished from the species, but con- 

 nected with it by intermediate forms. It is a meadow plant, somewhat 

 resembling the large-leaved form of ^1. parvi/blia of higher altitudes. 



gg. Tips of inrohicral bracts white. 



}t. osteins 6-30 cm. high, several to many in congested or open 

 • corymbose cymes. (hh, on page 710.) 



19. Antennaria nardina Greene, Pittonia 4: 82. 1899 (December). 



^■l. corymbosa E. Nelson, Bot. Gaz. 27: 212. 1899 (March),' not .1. alpina corym- 

 bosa Hartman, 1840 (?). 



Stem slender, 12-25 cm. high; stolons flexible; leaves from almost 

 linear to narrowly ol)lanceolate, rarely oblanceolate, acute, cuspidately 

 mucronate, 25-35 nun. long, canescent or lightly tomentose, rarely 

 green and glabrate; heads more or less pedicelled and corymbosely 

 disposed; involucres 4-5 mm. high; bracts with a brownish spot at 

 the middle, the tips dull white or milky white, the pistillate ones ovate 

 to oblong, obtuse, the staminate rotund to oblong, obtuse or truncate. 



Type locality. — '" Mt. Massive, near Leadville, Colorado."" Collected 

 by Holm; type (male plants only) in the herbarium of E. L. Greene. 



Mountains of Colorado, Wyoming, and Montana. 



One of the best of recently described species, being unusually well 



' T)/pe locality.— "BattK' lake, in the Sierra INIadre mountains," southern Wyoming. 

 Collected by Aven Nelson, no. 4160; type in the Rocky Mountain Herbarium, Uni- 

 versity of Wyoming, Laramie. 



