Nevada, llaJi, and Arizona. 79 



Type specimen in the United States National Herbarium, No. 

 1705, Death Valley Expedition ; collected August 25, 1891, about 

 eight miles northwest of Whitney Meadows, on the headwaters 

 of Kern River, Sierra Nevada, Tulare County, California, by 

 Frederick V. Coville. 



The species was described* from specimens collected by 

 Scouler " near the mouth of the Columbia, northwest coast of 

 America," and is excellently figured. f Specimens collected in 

 later years in the same region agree with Hooker's description 

 and figure in being viscid-pubescent throughout, and in having 

 the leaves oblong, entire, obtuse, and scarcely exceeding 3.5 cm. 

 in length. None of the specimens from the Sierra Nevada re- 

 semble the type form, but a good series of intergrades exist be- 

 tween the two regions and in the Rocky Mountains where the 

 variety occurs also.J The Sierran plant appears never to have 

 been described except in the Botany of California, where the 

 description of the type form is varied to include it. In Dr. Gray's 

 conspectus of the species of Saxifraga it is not distinguished 

 from Hooker's plant. 



Stylocline arizonica sp. nov. 



Plant of the subgenus Eusty Iodine, 5 cm. or less high ; habit 

 that of S. micropoides ; leaves obtuse or abruptly acute ; heads 

 4.5 to 6 mm. high ; bracts of the receptacle Broadly winged 

 around the conduplicate portion ; achenium lunate. 



The species differs from S. micropoides in its prevailingly obtuse 

 leaves, its winged bracts, and its lunate achenia; that species 

 having narrowly acute leaves, bracts not produced into wings at 

 the margin, and straight achenia. From S. gnaphaloides it differs 

 in its smaller size, larger heads, and linear-oblong leaves. S. 

 gnaphaloides attains a height of 8 to 10 cm. and is very diffusely 

 branched, while its heads are seldom more than 3 mm. high and 

 its leaves are oblanceolate with a tapering base. 



Type specimen in the United States National Herbarium ; col- 

 lected May 1, 1867, on the Verde Mesa, Arizona, by Dr. Charles 

 Smart. 



* Hook. Fl. Bor. Amer., I, 1833, 249. 



t Loc. cit., t. 80. 



.| Wheeler Survey, No. 790. 



\ Proc. Amer. Acacl. Sci., XX, 1884, 8-12. 



