Notes and Descriptions of North American Plants.— 1. 



By John K, Small. 



Saxifraga Napensis. 



Perennial by very short rootstocks, scapose, almost glabrous 

 or sparingly grandular-pilose above. Leaves basal ; blades thin- 

 nish (drying very thin), more or less obliquely oval or ovate, 2-7 

 cm. long, rounded at apex, undulate, abruptly or gradually nar- 

 rowed at base, ciliate, sometimes slightly pilose on both surfaces : 

 petioles slightly shorter than the blades or longer, broadly winged : 

 scapes erect, slender, 1.5-3 dm. tall, loosely-paniculate-corym- 

 bose : calyx glabrous or glabrate ; tube broadly turbinate, nearly 

 I mm. high ; segments oblong or ovate-oblong, slightly longer 

 than the tube, obtuse or acutish, gland-tipped : corolla white, 5 

 mm. broad ; petals broadly oval or suborbicular, 2 mm. long, 

 rounded or notched at apex, sessile or nearly so, 5-7-nerved : 

 ovaries united to calyx-tube, surrounded by a conspicuous lobed 

 disk : follicles short and stout, 4 mm. high, united to each other 

 to about the edge of disk : seeds dark red, 0.3 mm. long. 



On hillsides, Napa Valley, California. 



Collected by J. M. Bigelow (Whipple's Expedition) and George 

 Thurber, no. 496. 



A species of lax habit, resembling Saxifraga claytoniaefolia 

 more closely than any other member of the subgenus Micranthes. 

 It differs from 5. claytoniaefolia by its broadly oval or suborbicular 

 5-7-nerved petals. 



Saxifraga Van-Bruntiae. 



Perennial, bright green, minutely glandular-pilose or glabrate 

 below. Stems tufted, 2-7 cm. long, simple, or sometimes corym- 

 bosely branched above, leafy to the top : leaves alternate ; blades 

 linear, 4-8 mm. long, leathery, blunt, with a thick apex, sessile, 

 turning black at the base of the plants : calyx glabrate in age ; 

 tube broadly turbinate ; segments oblong or ovate-oblong, obtuse, 

 longer than the tube, spreading : petals yellow, oblong, about 

 4 mm. long, obtuse, firm, more or less crisped, much longer 

 than the calyx-segments : stamens 10, filaments filiform. 



The original specimens of this hitherto undescribed Saxifraga 

 were collected by Mr. and Mrs. Cornelius Van Brunt during the 



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