1898.] NATURAL SCIENCES OP PHILADELPHIA. 313 



that the Quamash flats of L. & C. of June 29th are not those of 

 June 23d. The latter are on Weippe Prairie, near the west end of 

 the Lo Lo Trail; the former are near the east end of that trail, on 

 Quamash or Glade Creek, also called Prairie and Takon Creek. 

 Both are in Idaho, but over 100 miles apart. 



I do not understand why Mr. Meehan, or Messrs. Robinson and 

 Greenman, should use Camassia eseulenta as the technical name of 

 this plant. The first specific name being quamash Pursh, 1814, and 

 the first tenable generic name being Quamasia Rafinesque, February, 

 1818, the coupling of these as Quamasia quamash is the required 

 name of the plant, as first given by Mr. Coville, Pr, Biol. Soc. Wash. 

 XI, April 21, 1897, p. 64. 



Erythronium grandiflorum Pursh, F1.231. 



June 5, 1806. Camp Chopunuish. 

 Erythronium grandiflorum parviflorum Wats. 



May 8, 1S06. Kooskooskee River, below Camp Chopunnish, 

 near mouth of the north fork of the river. 



Fritillaria lanceolata Pursh, Fl. 230. 



April 10, 1806. Brant Island in the Columbia, at foot of the 

 Cascades, near head of tide water. 



Fritillaria pudica Spreng. Lilium f pudicum Pursh, Fl. 228, t. 8. 



May 8, 1806. Kooskooskee River, below Camp Chopunnish. 



Trillium ovatum Pursh, Fl. 245. 



April 10, 1806. Same place as Fritillaria lanceolata. 



Trillium petiolatum Pursh. Fl. 244. 



June 15, 1806. On the Lo Lo Trail, on or near Collins' Creek. 



Veratrum viride Ait. or V. californicum Dur. 



June 25, 1806. On the Lo Lo Trail, on or near Hungry Creek. 



Xerophyllum tenax Nutt. Helonias tenax Pursh, Fl. 243. 



June 15, 1806. Same place as Trillium petiolatum. 



Zygadenus elegans Pursh, Fl. 241. 



July 7, 1806. Head of Cokalahishkit or Big Blackfoot River, 

 near Lewis and Clark's Pass. 



Aira brevifolia Pursh, Fl. 76 (or Poa tenui/olia Nutt.). 



June 10, 1806. At or near Camp Chopunnish, which L. & C. 

 left this day. 



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