386 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Waison 73; \Vliitc Salmon, Suksdorf 2l6l ; Cascade Mountains, latitude 49°,LyaU in 1859; 

 Stehekin, WhiUd 1408; Nason Creek, Sandberfi dt Lcihenj 624; without locality, Va^y 

 227, 228: Clallam County, Elmer 2835; Stehekin, Orijfiths d- Cotton 221. 

 Zonal distribution: Humid Transition. 



IMPATIENTACEAE. Ualsa^i Family. 



niPATIENS. .Jkwki.wkku. 



Posterior sepal not spurred 1 . /. ecalcarata. 



Posterior sepal spurred. 



Corolla orange-yellow; saccate st>pal lonjior than i)road 2. /. hijlora. 



Corolla pale-yellow; saccate sepal uuuh longer than broad 3. /. nolitangere. 



1. Impatiens ecalcarata Blankinship, Mont. Agr. Coll. Sci. Stud. 1: 85. 1905. 

 Type locality" Montana, "about half a mile east of Plains, Missoula County." 

 Range: Washington to Montana. 



Specimens examined: Columbia Valley, Lyall in 1860. 



2. Impatiens biflora Walt. Fl. Car. 219. 17H8. 

 Impatiens fulva Nutt. Gen. 1: 146. ISIS. 



Impaiiens awella Rydberg, Bull. Torr. Club 28: 34. 1901. 



Type ixx'ality: Carolina. 



Range: Washington to Newfoundland, south to Kansas and Mississippi. 



Specimens e.xamined: Columbia Valley, Lyall in 1860; Wilbur, Henderson, July, 1892; 

 Rock Lake, Ixike & Hull 453; Spokane, Piper 2384; Spokane County, Suksdorf 1837; 

 Meyers Falls, Kreager 472. 



3. Impatiens nolitangere L. Sp. PI. 2: 938. 1753. 



Type ixkai.it^': "Habitat in Europae, Canadae nemoribus. " 

 Range: Ala.ska to Wa.sliington. Europe. Asia. 



Specimens examined: Cascade Mountains, latitude 49°, Lyall in 1859; Deming, Flett 

 853; North Fork of Nooksack River, Suksdorf Wd. 

 Zonal distribution: Canadian. 

 This species is undoubtedly native, not introduced as indicated in the Synoptical Flora. 



RHAMNACEAE. Buckthorn Family. 



Fruit a drupe; flowers solitary or unibelled Rhamnus. 



Fruit a dry capsule; flowers paniculate Ceanothus. 



RHAMNUS. 



Shrub; petals wanting; leaves nearly glabrous beneath \. R. alnifolia. 



Tree; petals present; leaves downy beneath 2. R. purshiana. 



1. Rhamnus alnifolia L'Hcr. Sert. Angl. 5. 1788. 

 Type locality: "In America septentrionale." 



Range: British Columbia to Maine, southward to California, Wyoming, and New Jersey. 

 Specimens examined: Marshall Junction, Piper 2250; near Spangle, Suksdorf 2453; 

 Box Canyon, Kreager 393. 



Zonal distribution: Canadian. 



2. Rhamnus purshiana DC. Prod. 2: 25. 1825. Cascara sagrada. 

 Rhamnus alnifolia Pursh, Fl. 1 : 166. 1814. Not L'Her. 



Type localfty. "On the banks of the Kooskooskee" [Clearwater], Idaho. The exact 

 spot where Lewis collected the type is Camp Chopunish, opposite Ramiah. 

 Range: British Columbia to Idaho and Calif oinia. 



