474 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
COLDENIA. 
1. Coldenia nuttallii Hook. Journ. Bot. & Kew Misc. 3: 296. 1851. 
Tiquilia parvifolia Nutt.; Hook. loc. cit. as synonym. 
Tyre Locatiry: “Rocky Mountains.” Collected by Nuttall. 
Rance: Washington to Wyoming, Arizona, and California. 
SPECIMENS EXAMINED: Egbert Springs, Sandberg & Leiberg 343; Kennewick, Piper, 
July 10, 1897; Pasco, Elmer 1061; Henderson, June, 1892; without locality, Brandegee 982. 
ZONAL DISTRIBUTION: Upper Sonoran. 
LAPPULA. 
Annuals; scar of the nutlets linear. 
Lateral prickles of the fruit free........ 222.222.2222 eee 8. L. occidentalis. 
Lateral prickles of the fruit united.........22222.-2.- 2.200... 9. L. eupulata. 
Perennials; scar of nutlets triangular or ovate. 
Lateral prickles united for about half their length. 
Corolla greenish, the lobes broadest at base................... 6. L. hispida. 
Corolla blue, the lobes narrowest at base..................... 7. L. eiliata. 
Lateral prickles of the fruit 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. saratilis. 
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 to6 mm. broad... .. 2.22 2222222.-..2 22... 3. L. floribunda. 
Corolla 8 to 10 mm. broad. .......2..2-........-.-.- 4. L. diffusa. 
1. Lappula arida Piper, Bull. Torr. Club 28: 44. 1901. 
Lappula cottoni Piper, Bull. Torr. Club 29: 549. 1902. 
TYPE Locauity: Ellensburg, Washington. 
RanGE: Washington and Oregon. 
SPECIMENS EXAMINED: Wenache, Whited, June, 1896 and 1047; Ellensburg, Elmer 385; 
Whited 324; Piper 2676; Peshastin, Sandberg & Leiberg 595; Douglas County, Spillman, 
May 27, 1896; junction Crab and Wilson creeks, Sandberg & Leiberg 277; Coulee City, 
Piper 3840; without locality, Vasey in 1889; Chelan Butte, Griffiths & Cotton 173; Wenache 
Mountains, Griffiths & Cotton 126; Rattlesnake Mountains, Cotton 360, 579, 650. 
ZONAL DISTRIBUTION: Upper Sonoran. 
2. Lappula saxatilis Piper, Bull. Torr. Club 29: 541. 1902. 
Type Locaity: “Rocky sides of canons, Klickitat River, Wash.”’ Collected by 
Suksdorf. Not otherwise known. 
3. Lappula floribunda (Lehm.) Greene, Pittonia 2 : 182. 1891. 
Echinospermum floribundum Lehm. Pug. 2: 24. 1830. 
Typr Locauity: “Lake Pentanguishene to the Rocky Mountains,” collected by 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. 
Echinospermum diffusum Lehm. Pug. 2: 23. 1830. 
TyPE Locauity: “N. W. America,” collected by Douglas, according to Hooker. 
Rance: British Columbia to California, Montana, and Utah. 
