BOEEALES APHYLLAE 21 



Sonoran region, chiefly on Leguminosae, never on coniferae*, the 

 type of the genus. The type from California. 



Specimens examined: UNITED STATES. CALIFORNIA. Without in- 

 dication of host: Sierra Nevada (Nuttall, 1836, the type). Indio 

 (Davy, 45). Without locality (Davidson, 5929}. On Acacia-. San 

 Felipe Canon (Palmer, 441; Chandler, 5456 in part). Cottonwood Springs 

 (Hall, 6014). Mountain Springs (Orcutt, 2013). On Prosopis: Agua 

 Caliente (Parish, 684). Kelso (Jones, 1906). Calexico (Abrams, 3230). 

 On CeanotJms: Banning (Tourney, 1894). On Zizyphus: San Gor- 

 gonio Pass (Engelmann, 1880). On Larrea: Vallecito (Hb. Dept. Agr.). 

 Barstow (Heller, 1896). NEVADA. On Prosopis: Las Vegas ( Jones, 

 1905; Griffiths, 1912). Nelson (Jones, 1907). UTAH. "On juniper" [?] : 

 Milford ( Goodding, 1026). ARIZONA. On Acacia: Williams River 

 (Bigelow, 1853-4). Clifton (Greene, 1880). Tucson (Coville, 1617; 

 Dewey; Griffiths, 3539; Tourney, 1894; Hedgcock & Long, 9814). On 

 Prosopis: Gila River (Gilbert, 1873; Rothrock, 338). Gila Crossing 

 (Thornber, 14 t). Pima Co. (Mearns, 2724). Bowie (Jones, 4242 in 

 part). Beaver Dam (Goodding, 2135, 2139). Oracle (Hedgcock & 

 Long, 9696). On Parkinsonia: Bill Williams Fork (Bigelow, 5 a). 

 Tucson (Pringle, 1884; Tourney, 14, 1894). On Cercidium: Near the 

 Colorado (Bigelow, 5). Tucson (Selkirk, 9816). On Larrea. Bowie 

 (Jones, 4242 in part). Castle Creek (Tourney, 291). Hardyville (Pal- 

 mer, 506). Without indication of host: The Needles (Jones, 1884). 

 Tucson (Lloyd, 1907). Rincon Pass (Griffiths, 2019). Peach Springs 

 (Russell, 1889). Without locality (Bischoff, 1871; Tourney). Santa 

 Rita Mountains (Griffiths & Thornber, 205, a dwarf form, f. 

 nana PI. 12). MEXICO. LOWER CALIFORNIA. Ubi (Brandegee, 1889). 

 Gardner's Laguna (Mearns, 2894). San Felipe Bay (Mac Dougal, 

 1904). On Microrhamnus : SONORA. Guaymas (Palmer, 1065). 

 Pinacate (Lumholtz, 30). Tiburon Island (Rose, 16780). Hermosillo 

 (Brandegee, 1892, a very silvery form, f. argentea). 



Phoradendron californicum distans, n. var. 



Differing from the type in its elongated fruiting spikes (about 

 30 mm.) with distinctly separated whorls of fruit. Plate 13. 



Southern range of the type, into which it probably merges, and 

 on the same hosts. The type from Arizona. 



Specimens examined: UNITED STATES. CALIFORNIA. Without local- 

 ity (Bigelow, 1853-4). Indian Wells (Orcutt, 2044). Resting Springs 

 valley (Coville & Funston, 279). Tantillas Canon (Palmer, 270, 441 



*Cf. Hedgcock, Phytopathology, vol. 5. p. 179. 



