320 CALIFORNIA ACADEMY OF SCIENCES. 



bracts at the nodes ternate, triangular, obtuse, >£ mm. or 

 less in length, turbinate; obtuse teeth four; 4-6 flowered; 

 glabrous without, conspicuously white-villous within; 

 perigonium 7^ mm. long, yellow, with reddish ribs, be- 

 coming rose colored in age, open-campanulate, glabrous, 

 exserted on a slender stipe ; outer segments obovate ; inner 

 oblong, narrower and longer ; seed flattened, lens-shaped, 

 brown, with a varnished surface. 



This belongs to § Pedunculati, near E. Thomasii, 

 from which it differs in the shape of the segments of the 

 perigonium, the glabrous flowers and more flattened seed. 

 In habit the two species are so similar as to be confused. 



This Eriogonum forms a tumble-weed 10-20 cm. in 

 diameter, because of the numerous intricately-branched 

 stems which spread out near the base. The lower and 

 chief internodes are about 2 cm. long, while at the ends 

 of the branches they about equal the capillary pedicels 

 (about 5 mm. long). The pedicels are conspicuously 

 perpendicular to the stem, the branches less so. The 

 entire plant becomes reddish with age. It grows at the 

 base of sandstone cliffs along the San Juan River. I 

 collected it also in a similar situation, near Moab, on the 

 Grand River, in Utah, then identifying and distributing it 

 as E. Thomasii (Zoe, iv, 126). 



125. Eriogonum inflatum Torr., Fremont's Rep., ii, 



3*7- 

 Type locality: " On barren hills in the lower part of 



north California." 



This is perennial and generally grows on the sides of 



hills and gulches, sometimes to a height of three or four 



feet. I have never seen it on the alkaline flats where E. 



trichopodimi Benth., an annual of similar habit, is so 



often abundant in this region. 



