474 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



COLDENIA. 



1. Coldenia nuttallii Hook. Journ. Bot. & Kew Misc. 3: 296. 1851. 



TiquUia panifolia Nutt.; Hook. loc. cit. as synonym. 



Type locality: "Rocky Mountains." Collected by Nuttall. 



Range: Washington to Wyoming, Arizona, and California. 



Specimens examined: Egbert Springs, Sandberg cfc Leiberg 343; Kennewick, Piper, 

 July 10, 1897; Pasco, Elmer 1061; Henderson, June, 1892; without locaHty, Brandegee 982. 



Zonal distribution: Upper Sonoran. 



LAPPULA. 



Annuals; scar of the nutlets linear. 



Lateral prickles of the fruit free 8.L. occidenialis. 



Lateral prickles of the fruit united 9. L. cufulata. 



Perennials: scar of nutlets triangular or ovate. 



Lateral prickles united for about half their length. 



Corolla greenish, the lobes broadest at base 6. L. Mspida. 



Corolla blue, the lobes narrowest at base 7. L. cUiata. 



Lateral prickles of the fioiit free to the base or nearly so. 

 Swellings in throat of corolla pubescent. 



Flowers white ; pubescence, harsh, appressed 1. L. arida. 



Flowers blue; pubescence soft, not appressed 2. L. mxatiiis. 



Swellings in throat of corolla not pubescent. 



Flowers white : swellings as long as broad 5. L. hendersoni. 



Flowers blue ; swellings broader than long. 



Corolla 4 to 6 mm. broad 3. Z. flonhunda. 



Corolla 8 to 10 mm. broad 4. L. diffusa. 



1. Lappula arida Piper, Bull. Torr. Club 28: 44. 1901. 

 Lappula cottoni Piper, Bull. Torr. Club 29: 549. 1902. 

 Type locality: Ellensburg, Washington. 



Range: Washington and Oregon. 



Specimens examined: Wenache, Whiied, June, 1896 and 1047; Ellensburg, Elmer 385; 

 Whiied 324; Piper 2676; Peshastin, Sandherg & Leiberg 595; Douglas County, Spillman, 

 May -27, 1896; junction Crab and Wilson creeks, Sandberg & Leiberg 277; Coulee City, 

 Piper 3840; without locality, Fa,<?e2/ in 1889; Chelan Butte, G^ri^i^s cfc Co«on 173; Wenache 

 Mountains, Griffiths & Cotton 126; Rattlesnake Mountains, Cotton 360, 579, 6.50. 



Zonal distribution: Upper Sonoran. 



2. Lappula saxatiHs Piper, Bull. Torr. Club 29: .541. 1902. 



Type locality: "Rocky sides of canons, Klickitat River, Wash." Collected by 

 Suksdorf. Not otherwise known. 



3. Lappula floribunda (Lehm.) Greene, Pittonia 2 : 182. 1891. 

 EcMnospermum foribundum Lehm. Pug. 2: 24. 1830. 



Type locality: "Lake Pentanguishene to the Rocky Mountains," collected bj Drum- 

 mond, according to Hooker. 



Range: Washington to Saskatchewan, Colorado, and California. 

 Specimens examined: Yakima Region, Brandegee 986. 



4. Lappula diffusa (Lehm.) Greene, Pittonia 2: 182. 1891. 

 EcMnospermum. diffusum Lehm. Pug. 2: 23. 1830. 



Type locality: "N. W. America," collected by Douglas, according to Hooker. 

 Range: British Columbia to California, Montana, and Utah. 



