168 NORTH AMERICAN FAT^NA. [no.16. 



Senecio canus Hook. 



Coininoii oil the rock-strewn pumice slopes above timberline. (Identi- 

 fied by ]\Iiss Eastwood and Professor Greene.) 



Solidago elongata Nntt. 



Abundant in open grassy places at Wagon Camp, where it was in 

 tlower in August and Se])tember. (Identified by Professor Greene.) 



Agoseris monticola Greene.' Alpine Dandelion. 



Abundant in the neighborhood of timberline on the stony slopes and 

 basins, where its yellow dandelion-like Howers were consi)i('uous from 

 the end of July until the middle of September. On warm southerly 

 slopes it was observed as high as 9,750 feet. Its wavy leaves are some- 

 times entire, sometimes indented or cut. This species has Just been 

 described by Professor Greene from specimens collected by us at tim- 

 berline on Shasta. 



Crepis intermedia Gray. 



Collected by Miss Wilkins in Mud Creek Canyon near the mouth of 

 Clear Creek, where its zone position is either Iludsoniau or Canadian. 

 (Identified by F. \. Coville.) 



Hieracium albiflorum Hook. 



Common in places along the upper i)art of the Transition zone. Col- 

 lected at Wagon Cam[), on Squaw Creek, and on a warm slope in Mud 

 Creek Canyon near the mouth of Clear Creek. (Identitied by Miss 

 Eastwood and Professor Greene.) A dwarf ali)iue form, api)arently not 

 yet named, occurs above timberline and is fairly common above the 

 head of Scpiaw Creek, growing with 7/. horrhhitii. 



Hieracium cynoglossoides nudicaule Gray. 



Very common in the Transition zone just below Wagon Camp. 

 (Identified by Professor Greene.) 



Hieracium horridum Fries. 



Common in places on the liigher sloi)es at and above timberline, 

 forming small and densely hairy tufts among the rocks. The plant, 

 l»articularly when y<mng, is comj)letcly covered by a very dense growth 

 of stilf silky white hairs whi<'h give it a woolly appearance. 



Hieracium gracile Hook. 



Common in the heather beds just below timberline, where its conspicu- 

 ous yellow llowers were in blossom the eai ly part of August. (Identilied 

 by Miss l^jastwood and Professor Greene.) 



Hieracium greenei Gray. 



I^'airly connnon jusi below Wagon Camj) in the Transition zone. The 

 typ«; locality of this species is in the Scott Mountains a little west of 

 Shasta. (Identified by Professor Greene.) 



'Pittonia, IV, p. 37, Mnicli 17, 1899. 



