343 
Some rare Washington Plants. 
By K. M. WIEGAND. 
The writer has recently had the opportunity of studying a set 
of several hundred Washington plants collected by Mr. J. B. 
Flett during the summer of 1895 and 1896. These were all either 
from the vicinity of Tacoma or from Mt. Rainier, and although 
many of them are common, some are rather rare or otherwise in- 
teresting on account of their distribution. It seemed important 
therefore to publish the subjoined list, which includes thirty-three 
of the more interesting species together with the localities fur- 
nished by Mr. Filett. 
Batrachium aquatile (L.) Dumort. (With floating leaves) 
ponds Tacoma. 
Thlaspi alpestre L. Grassy slopes, Mt. Rainier, alt. 6000 ft. 
Cardamine belhidifolia L. Mt. Rainier. 
Cardamine Brewert Wats. Wet places, Tacoma. Two forms, 
one very weak, leaves thin and flaccid; the other more strict, 
leaves thicker and more purplish. 
Draba aureola Wats. Rocky ridges, Mt. Rainier, alt. 10,500 
ft. (see Piper, Bot. Gaz. 22: 488, 1896). 
Arenaria propinqua Rich. Crevasses of rocks, Mt. Rainier. 
Arenaria tenella Nutt. Prairies, Tacoma. 
Arenaria paludicola Rob. Bogs, Tacoma. (See Piper, Bot. 
Gaz. 1. c.) 
Silene acaulis L. Mt. Rainier. 
Cerastium alpinum L. Mt. Rainier. 
Geranium pusillum L. Prairies and Streets, Tacoma. 
Saxifraga Notkana Moc. Swamps, Tacoma. 
Ocnanthe sarmentosa Nutt. Swamps, Tacoma. 
Ligusticum Grayi C. & R. Grassy places, Mt. Rainier, alt. 
5000 ft. 
Berula erecta (Huds.) Coville. Swamps, Tacoma. 
Solidago Canadensis L. Moist rich ground, Tacoma. 
Grindelia Oregana Gray. At tide-water on sandy sea-shores. 
Apargidium borealeT. & G. Mt. Rainier. 
Hemizonia pungens T. & G. Dry waste ground, Tacoma: 
probably introduced. 
