PIPER FLORA OF THE STATE OF WASHINGTON. 469 



2. HydrophyUum albifrons Ilello.r, Bull. Torr. Club 25: 207. 1898. 

 HydrophyUum congestum Wiegand, Bull. Torr. Club 26: 136. 1899. 

 Type locality: Lake Waha, Nez Perces County, Idaho. 



Range: Washington and Idaho. 



Specimens examined: Nason Creek, Sandberg & Leiberg 658; Okanogan Coxmiy ,W}iited 

 222; Silverton, Bouck 150; Mount Rainier, Piper 2124; Mount Adams, Sulcsdorf 453, 

 591; Henderson 685; Goat Mountains, Allen 232; Klickitat River, Fleft 1250; without 

 locality, Vasey in 1889; Pullman, Piper 1697; Hyll 773; Blue Mountains, Horner 3351; 

 Wenache Mountains, Cotton 11832. 



Zonal distribution: Arid Transition and Canadian. 



This species is very close to H.fendleri (A. Gray) Heller, to which it has been referred. 

 The plant called //. macrophyllum Nutt. in Cooper's Report is probably //. alhifrona, which 

 has also been confused with //. occidentale (S. Wats.) A. Gray, a species of more southern 

 range. 



The type specimen of H. congestum Wiegand really came from Mount Rainier (Mount 

 Tacoma) and not from Tacoma as published. 



3. HydrophyUum tenuipes Heller, Bull. Torr. Clul> 25: 582. 1898. 

 Type locality: Montesano, Washington. 



Range: British Columbia to Oregon, west of the Cascade Mountains. 



Specimens examined: Montesano, /?eZZer 3853 ; Iloquiam, Lam/? 1140; Clallam County, 

 Elmer 2831; Ilwaco, Piper 5000; Seattle, Piper 260, 3020; Skokomish River, Kincaid, 

 May 16, 1902; Tacoma, Flett 1768; Quinault, Conard 134; without locality, Wilkes Expe- 

 dition. 



Zonal distribution: Humid Transition. 



Two quite distinct forms of this species occur, but satisfactoiy characters to separate them 

 are not evident. The coast form like Piper's 5000 has dark blue flowers on long peduncles, 

 and thick leaves coarsely and doubly crcnate-dentate, while the form away from the imme- 

 diate coast has thinner leaves, simply dentate, and pale flowers on shorter peduncles. 



HydrophyUum tenuipes has heretofore been referred to H. virginicum L. 



NEMOPHILA. 



Corolla campanulate, bluish 1 . A'^. sepulta. 



Corolla tubular or tubular-campanulatc, white. 



Leaves mostly alternate; corolla shorter than calyx 2. A'^. hreviJJora. 



Leaves mostly opposite; corolla equaling the calyx or longer. 



Seeds mostly to 8 per capsule; leaves oblong 3. A'^. pedunculata. 



Seeds mostly 4 per capsule; leaves ovate 4. iV. parvijlora. 



1. Nemophila sepiUta Parish, Erythea 7: 93. 1899. 

 Nemophila densa Howell, Fl. N. W. Am. 466. 1901. 

 Nemophila minutifiora Suksdorf, West Am. Sci. 14: 22. 1903. 



Nemophila menziesii minutifiora Suksdorf, Deutsch. Bot. Monatss. 18: 133. 1900. 

 Nemophila reticulata Suksdorf, West Am. Sci. 14: 22. 1903. 

 Nemophila erosa Suksdorf, op. cit. 23. 



Type locality: Bear Valley, San Bernardino Mountains, California. 

 Range: Washington to California. 



Specimens examined: West Klickitat County, Suksdorf 684, 397; Bingen, Sul'sdorf 

 2198; Clarke County, Suksdorf 2315. 



2. Nemophila breviflora A. Gray, Proc. Am. Acad. 10: 315. 1875. 

 Type locality: "Mountains of Utah." Collected by Watson. 

 Range: Washington to Montana, Wyoming, and Utah. 



Specimens examined: Cleman Mountain, Henderson, June 14, 1892; Klickitat County, 

 Suksdorf in 1881; Klickitat River, Flett 1013; Blue Mountains, Piper, July, 1896. 

 Zonal distribution: Canadian. 



