﻿46 Small: Studies in 



I 



me 



California, near 



Lose mine, San Bernardino Mountains, altitude 2IOO meters, J 

 7, 1894, no. 3170, S. B. Parish ; Oregon, Powder River Mc 

 ains, altitude 2,500 meters, August 7, 1896, IV. C Cusick. 



Eriogonum rosulatum. 



Perennial, dwarf, canescent-tomentose. Stems much branched ; 

 branches densely tufted, forming matted cushions : leaves in densely 

 crowded rosettes; blades ovate or suborbicular, 2-5 mm. long, 

 obtuse, thick, close % ly tomentose, abruptly narrowed or truncate at 

 the base ; petioles shorter than the blades, dilated at the base : in- 

 volucres sessile, or at maturity on scapes 1— 1 .5 cm. long, broadly 

 turbinate, 3 mm. high, villous tomentose ; segments about as long 

 as the tube, unequal, lanceolate to ovate, obtuse: calices pink to 

 vinous, 2.5-3 mm. long, glabrous, contracted into a short stipe-like 

 base ; segments firm, the inner and outer nearly equal, cuneate, 

 retuse at the apex, especially the inner 3 : filaments short, glabrous : 

 achenes 3-angled, 2.5 mm. long, glabrous. 



Mineral K 



Summer. 



One of the few species in which the peduncle is wanting, or 

 almost wanting, at least during the flowering period. The species 



1 



E. marifolium ,the leaves resembling 



The plants form compact cushions several centimeters in diameter, 



many short branches and the very densely 



imbricated leaves. 



ments 



ments and glabrous achenes all serve to distinguish the two 



species 



Mineral K 



Sierra Nevada M 

 Mr. F. V. Coville 



Expedition, by 



Number 1549 



y Eriogonum polypodum. 



Perennial, from a shrubby base. Foilage densely canescent- 

 tomentose : stems much branched ; branches spreading radially : 

 leaves thick, crowded ; blades loosely ovate to suborbicular, obtuse, 

 revolute, sometimes glabrate above, abruptly narrowed or cordate 

 at the base ; petioles stout, shorter than the blades : scapes num- 

 erous, erect, 5-15 cm. tall, simple below, topped by a 3-6-rayed 

 umbel, or a head : involucres sessile or their peduncles 1-5 nun. 

 long, turbinate, 3-4 mm. high ; segments 5-7, usually 6, oblong, 

 obtuse, spreading : calices glabrous, about 3 mm. long ; segments 



