BOEEALES FLAVESCENTES 41 



12-flowered when staminate : peduncle 2-3 mm. long : scales villous-tomen- 

 tose. Fruit white, from elongated becoming subglobose, somewhat short- 

 villous at top, about 4 mm. in diameter, in close whorls: sepals rather 

 villous, somewhat parted. Plates 1, 5, 6, 7, 10, 40. 



Californian region, usually on Quercus but also on Acacia, Aesculus, 

 Arctostaphylos, Persica, Populus, Rhus, Robinia, Salix and Umbellula- 

 ria* The type from Oregon. 



Specimens examined : UNITED STATES. OREGON. Wahlamet Woods 

 (Nuttall, 1834, the type). Without locality (Hall, 456; Finley, 1900). 

 Roseburg (Engelmann). Waldo (Howell, 1884). Grant's Pass (How- 

 ell, 1264). Gold Hill (Walpole, 152). Ashland (Walpole, 380). Cen- 

 tral Point (Ashworth, 147). CALIFORNIA. San Francisco Bay (Wilkes 

 Expedition, Itfff7, 1853-4). Oakland (HUlebrand, 1863). Lake Co. (Bo- 

 lander, 2671). Upper Sacramento (Wilkes Expedition, 1772). Napa 

 Valley (Bigelow, 1854). Ukiah (Blasdale, 1019). Salinas Valley (Brew- 

 er, 564; Vasey, 1880). Palo Alto (Baker, 203). Fort Tejon (Horn, 

 1863). Placerville (Bolander; Rattan). Scott River (Hedgcock, 1893). 

 Sicon Valley (Lemmon, 1875). Siskyou Co. (Pond, 189, 192; Hedg- 

 cock, 1896; Butler, 565). Plumas Co. (Austin). Butte Co. (Austin, 

 698; Drew, 1889). Raymond (Hedgcock, 4840). Chico (Bidwell, 1890). 

 Little Chico (Bruce, 1786) . Sierras (Bessey,lS15.) Sugar Pine (Scher- 

 fee, 1914). Mendocino Co. (Brown, 953; Chesnut, 595; Clarke, 1-5). 

 Asti (Pammel & Davis, 114). Vacaville (Jepson, 1894). Sonoma Co. 

 (Heller & Broivn, 5036). Northfork (Jack, 1907). Amador Co. (Braun- 

 ton, 1258; Hansen, 720). Emigrant Gap (Jones, 1882). Byron Gulch 

 (Ward, 116). Shasta Co. (Baker & Nutting, 1894). Calaveras Grove 

 (Hutchens, 1900). Mt. Hamilton (Chandler, 6043; Blankinship, 1891). 

 Kaweah River Basin (Hopping, 264). Mariposa Co. (Hollick, 1880). 

 Hood's Peak (Michener & Bioletti, 1893). El Portal (Hottes, 1914). 

 San Luis Obispo Co. (Barber, 1901). Sta. Barbara (Elmer, 3794). Sta. 

 Clara Co. (Davy, 551; Elmer, 1758). Auberry (Jordan, 8296 on Arc- 

 tostaphylos, 8332 on Rhus). San Bernardino Co. (Parish, 1073; 

 Abrams, 2687, 2749). Los Angeles Co. (Grant & Wheeler, 979=6243). 

 Wilson's and Baldy Trail (McClatchie, 1893). Riverside (Grant, 4517, 

 4533). San Jacinto Mts. (Hall, 2531; Gregory, 1890; Berg, 1904). 

 Sta. Rosa Mountain (Smith, 5466). San Diego Co. (Mearns, 3767; 

 Palmer, 440; Chandler, 5456; Stokes, 1895). Laguna (Mearns, 3617). 

 Without locality (Fitch, 1849; Kuntze, 1874). MEXICO. LOWER CALI- 

 FORNIA. Encenada (Jones, 3734). Mountains (Orcutt, 1310a). Nach- 

 oguero Valley (Schoenfeldt, 3400). 



*Cf. Cannon, Bull. Torr. Bot. Cl. vol. 28. p. 374. Hedgcock, Phytopathology, 

 vol. 5. p. 179. 



