710 PROCEEDINGS OF THE NATIONAL MUSEUM. 



on the other hand, are usually spreading- and always plane. From the 

 vorv similar A. conjinis of the far west it differs in being closely 

 matted and appressed to the o-round and not at all viscidulous. 



Antennaria arida viscidula sii})sp. nov. 



Size, habit, and leaves of the species, Init glandular about the inflores- 

 cence, stem, and usuall}' on the leaves below; middle portions of outer 

 bracts (pistillate) greenish yellow or brown, the tips dirty wdute or 

 pale brown. 



Tijjx' local tti/. — Laramie Peak, Wyoming. Collected l)y Aven Nel- 

 son, no. TaTO; type in the Rocky Mountain Herbarium, University of 

 Wyoming, Laramie. 



Wyoming, and Colorado (Kydberg and Vreeland, no. 5455, 1900). 

 Antennaria arida humilis (Kydb.) comb. nov. 



A./,Ji(icea liiniiills Rydl). Mem. N. Y. Eot. Garden 1: 41-4. 1900. 



General aspect of the species but taller, 15-20 cm. high, rarely 

 more; the leaves somewhat larger; the involucral bracts more unequal. 



T//j>(' local'itii. — '• Bridger Mountains," Montana. Collected by Ryd- 

 berg and Ressey. no. Sl-iH; type in the herbarium of the New York 

 Botanical (Jarden. 



Montana and W3^oming. 



This has nothing to do wdth ^i. foUacca, which is a very broad-leaved 

 species growing in meadows. It is a well-marked form of A. arida 

 and may be maintained as a variety of the latter. 1 was at first inclined 

 to recognize it as a species, but since it grades imperceptibly into ^1. 

 ari(I((. 1 have preferred to treat it as a variety. As to habit, it is more 

 suldigneous and with longer stolons than the species, and occurs in 

 the hills on gravelly ridges and rocky slopes rather than on the plains. 

 Li some respects it approaches A. (wiiphylhi. which has very different 

 involucres. This variet}' is rather common in the hills bordering on 

 the Laramie Plains, where I observed and collected it repeatedly in the 

 spring of 1!»00 (nos. 236, 240, 247, 251, 255). Nos. 247 and 255 are of 

 the male plant. The staminate heads are suuilar to those of A. reflvxa^ 

 but larger, the tips of the pappus ])ristbs very much dilated, and the 

 bract tips very broad and obtuse, sordid wdiite or very pale brown. 



25. Antennaria scariosa E. Nelson, Bot. Gaz. 27: 210. 181)J>.' 



Thi-ec to 10 cm. high; leaves spatulate, obtuse or acutish, hoary- 

 tomentose, about 14 mm. long; cauline leaves ample; bracts (pistillate) 

 with broader tips that in A. arida. 



Tiipe locality. — " Leroy, Uinta County,'' southwestern Wyoming. 

 Collected by Aven Nelson, no. 45ST; type in the Rocky Mountain 

 Herbarium, University of Wyoming, Laramie. 



/(/(. HeadR sessile an<l soJitanj or 2 or S together on innclt ohhre- 

 rialed rosulale-leafi/ stems. 



26. Antennaria rosulata Rydb. Bull. Torr. Club 24 : 300. 1897. 

 Densely matted and depressed, the heads scarcely rising above the 



^I propose the new name Antennaria petaloidea modesta for A. petaloidea scariosa 

 Fernald, RhcKlora 1: 78. 1899 (April), not .4. srarlo.m E. Nelson, Bot. Gaz. 27: 210. 

 1899 (Marcli). 



