94 Nelson New Plants from Nevada. 



hairs; petals orbicular, emarginate and slightly erose-dentate, 12-15 mm. 

 long, with a short claw; stamineal column rather short; styles not sur 

 passing the anthers; carpels smooth, easily splitting along the dorsal 

 line, deeply notched but not lacerate on the ventral side. 



Rather too nearly allied to 8. neo-mexicana Gray but easily distin 

 guished from it. 8. neo-mexicana may always be known by its almost 

 hispid hirsuteness which is especially noticeable on the stems, petioles, 

 leaf-veins and calyx. The typical form of this species too is mostly 

 much larger, and often with a single stem from a conical root. It also 

 has a longer stamineal column from which the styles are noticeably 

 exserted. 



Mr. Goodding's No. 1091, Juab, Utah, June 10, 1902, is taken as the 

 type. Nearly typical are the following by Prof. Kennedy; No. 673, 

 Simon's Creek, Elko Co., Nev., and No. 811, Stampede, same county. 



Sidalcea nervata sp. nov. 



Perennial; stems singly from the small woody root, usually somewhat 

 branched above, glabrous below, sparsely and minutely stellate-pubes 

 cent above; leaves apparently glabrous but with short forked hairs 

 above and a minute stellate pubescence below, strongly nervosely veined 

 below; the basal long-petioled, orbicular, 6-8 cm. broad, 0-8 lobed, the 

 lobes with 2-3 broad teeth; becoming more deeply divided upwards, the 

 uppermost cleft to the base into linear lobes; stipules narrowly linear: 

 inflorescence densely stellate-pubescent, rather few-flowered; calyx 

 cleft below the middle, the lobes triangular-lanceolate; petals broadly 

 obovate, emarginate, about 2 cm. long, half as broad, pubescent on the 

 short united claws; carpels glabrous, distinctly rugose-reticulated on the 

 dorsal angles, slightly depressed. 



A perfectly distinct species allied to S. wegana Gray from which its 

 relatively few, much larger flowers will at once distinguish it. It may 

 also be distinguished by its smaller calyx, less acuminate calyx-lobes, 

 short pedicels which are distinctly exceeded by the slender bracts. The 

 inflorescence never presents that crowded spicate appearance of 8. ore- 

 gana with its numerous small flowers. 



I take as the type my No. 4101, Evanston, Wyo., distributed some 

 years since as 8. oregana. What seems to be the same is Prof. Kenne 

 dy's No. 564, Little Lakes Canyon, Elko Co., Nevada. Somewhat more 

 pubescent and probably showing its variation and distribution are Mr. 

 M. E. Jones's Nos. as follows; 5597, Soldier Summit, Utah, distributed 

 as 8. glaucescens; 6207, Salubria, Idaho, distributed as 8. campestris. 



Sphceralcea parvifolia sp. nov. 



Stems several or many from a rather large woody root, erect, rather 

 slender, only 2-4 dm. high, at first densely stellate-canescent but gradu- 



