221 



Springs, Va.," it ranges along the eastern slope of the Appala- 

 chians from Northern Alabama to the plateau of the Pocono in 

 Monroe County, Penn., where, at an elevation of over 2,000 feet 

 or more, it flourishes in great abundance. Dr. Britton reports 



its existence also in the Catskills of New York. 



Rhododendron arborescens (Pursh),Torrey. — This rare 

 species has lately been found and collected by Mr. John K. Small 

 of Lancaster, Pa., an indefatigable young botanist, on the Blue 

 Mountain above Harrisburg, at the same station probably, where 

 it was long ago obtained by Bartram and Pursh. 



Thomas C. Porter. 



Easton, Pa. 



New Californian Plants. 



By J. G. Lemmok. 



Drara Crockeri, n. sp. 



Sub-alpine, caespitose, not at all stellate-pubescent, but spar- 

 ingly pilose throughout. Leaves approximate and rosulate near 

 the bases of the numerous branches, linear, about ^ inch long, 

 one-nerved at base, slightly narrowed to the petiole ; peduncles 

 scapose, ^ to i inch high, 5 to 8 flowered; flowers small, white 

 2 to 3 lines long ; stamens included ; pods ovate, on pedicels 2 

 to 3 lines long and tapering into the long (l to 2 lin.) incurved 

 and persistent style ; seeds 2 to 4, large, brown, wingless. 



Sierra Valley, Sierra County, California, at an elevation of 

 3,600 feet, growing among Artemisia bushes and bunch grass, 

 on sub-alkaHne soil. Stems numerous, about three inches long, 

 from a stout, vertical, perennial root. A very distinct species 

 near -^ Aizopsis, DC, of Watson's recent " Revision of Draha" 

 (Proc. Am. Acad. Sci., May, 1888), but peculiar in its 

 peduncles and simple pilose pubescence instead of the stellate 

 hairs usually clothing the plants of this genus. Dedicated to 

 Charles F. Crocker, of San Francisco, Vice-President S. P. R. R. 

 Co., a gentleman distinguished for his patronage of science. Col- 

 lected May 18, 1889. 



POTENTILLA (Horkelia) coNGESTA (Hook.), Baillon, var. 



LOBATA, n. var. 



Floral and fruit characters nearly as in the typical form, in- 

 habiting the Willamette Valley of Oregon, but the plants are 



scapose 



