346 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM." 



2. Amelanchier utahensis Koehne, Berlin Ostem. 32:^. 2. 1890. 

 Amelanchier alnifolia vtahentis Jones, Proc. Cal. Acad. Sci. 6: 679. 1895. 

 Type LocALnr: Leeds, Utah. 



Range: Washington to ITtah. 



Specimens examined: Wenache, Whited 1028 in part; Rattlesnake Mountains, Cotton 

 569, 571, 365; Rock Creek, Sandherg <t Leiberg 94. 

 Zonal distribition: Upper Sonoran. 



3. Amelanchier cusickii Femald, Erythea 7: 121. 1899. 



TiPE locality: "On stony hillsides, Union County, Oregon." Collected by Cusick. 



Range: Washington, Oregon, and Idaho. 



Specimens examined: Wenache, irAiW 1028 in part, 1344; Fort Colville, LyaZZ in 1861 ; 

 Rock Lake, Pi;)er 2830; Spokane, P j per 2694; Union Flat, Piper 2732; Elmer 135; Wawa- 

 wai. Piper 3812; Meyers Falls, Beattie cfc Chapman 2175. 



Zonal distbibution : Arid Transition. 



4. Amelanchier cimeata Piper, Bull. Torr. Club 27: 392. 1900. 

 Type locality: EUensbuiT^, Washington. 



Specimens examined: Ellensburg, Piper 2713. 



5. Amelanchier basalticola Piper, Fl. Palouse Reg. 100. 1901. 



Type locality: Bluffs of Snake River, Whitman County, Washington, opposite Clarks- 

 ton. 



Range: Bluffs of Snake River in Washington and Idaho. 



Specimens examined: Wawawai Bluffs, Pi ;)cr 3823; opposite Clarkston, Hunger 39. 



Zonal distribltion: Arid Transition. 



Amelanchier sp. Specimens collected by Heller (no. 3958) at Montesano and by Lamb 

 (no. 1190) at Iluinptulips represent a species close to A. florida, but seemingly distinct. 

 More and better material is needed. 



CRATAEGUS. Thobnapple. 



Fruit red; spines 4 to 6 cm. long. 



Calyx and fruit glabrous 1. C. Columbiana. 



Calyx and fruit tomentasc 2. C. piperi. 



Fruit black; spines 2 to 3 cm. long 3. C. hremspina. 



1. Crataegus Columbiana Howell, Fl. N. W. Am. 1: 163. 1898. 



TiVPE locality: "Common along the Columbia River and its tributaries east of the Cas- 

 cade Mountains. " 



Range: Eastern Washington and eastern Oregon. 



Specimens examined: Wilson Creek, Lake cfe H'tdl 505; Spokane, Piper 2387; Suhsdorf 

 919; Rock Creek, Sandherg & Leiberg 91; 6 miles south of Pullman, Piper 3809; Colville, 

 Kreager 523. 



Zonal distribution: Arid Transition. 



This species has been mistaken for the eastern C. macracantha. Lodd. It also forms 

 the basis for the entry "C. tomentosa L. var. " in Suksdorf's list. 



2. Crataegus piperi Britton, Torreya 1: 55.' 1901. 

 Type locality: Pullman, Washington. 



Range: Eastern Washington, Idaho, and eastern Oregon. 



Specimens examined: Wenache, Whited, September 2, 1899; 1209, 1293; Brandegee in 

 1883; Pullman, Pipen 1535; Elmer in 1896. 



Zonal distribltton: Arid Transition and Upper Sonoran. 



This may be only a subspecies of the former, with which it sometimes occurs, being indis- 

 tinguishable except by the pubescence. 



