22 THE GENUS PHORADENDRON 



in part). East of San Bernardino (Parry, 1877). NEVADA. Logan 

 (Heller, 10464}. ARIZONA. Gila River (Boundary Survey, 1236). 

 Fort Mojave (Cooper, 1860-61). Yuma (Engelmann & Sargent, 1880; 

 Vasey, 1881; Pringle, 1881 the type; Solereder, 1893). Bonelli's 

 Ferry (Goodding, 725}. Beaver Dam (Jones, 5013). Tucson (Jones, 

 1903; Dewey; Hedgcock & Long, 9815). El Rio (Lemmon, 267). 

 Nogales (Mearns, 2644). West of the Cerro Colorado (Ferriss). 

 Franconia (Jones, 1903). Yucca (Trelease, 1901). NEVADA. Moapa 

 (Jones, 1904). Muddy Valley (Kennedy & Goodding, 57). MEXICO. 

 LOWER CALIFORNIA. San Rafael Valley (Orcutt, 1310). San Gregorio 

 (Brandegee, 1889). Lake Maquata (Orcutt, 2027). Agua Verde 

 (Rose, 16583). SONORA. S. Pedro to Fronteras (Hartman, 945). 

 SINALOA. Navajoa (Rose, Standley & Russell, 13165). Topolobampo 

 (Endlich, 689). 



PHORADENDRON JUNIPERINUM Engelmann. 



Plioradendron juniperinum Engelmann, Mem. Amer. Acad. n. s. vol. 4. 

 p. 58. 1849. 



Not forked, the moderate rather stout somewhat squarish branches 

 without cataphyls, dioecious. Internodes short (2-4x5-10 mm.), micro- 

 scopically granular. Stem scales spreading, deltoid, not constricted at 

 base, 1-2 mm. long. Spikes solitary, very short (3 mm.), glabrous, with 

 a single short joint 2-flowered when pistillate and 6- or 8-flowered when 

 staminate: peduncle scarcely 2 mm. long: scales rather blunt. Fruit 

 straw- or wine-colored, subglobose, 3 mm. in diameter: sepals erect, 

 parted. Plates 2, 3, 4, 14. 



Southern Rocky Mountain or Chihuahuan and adjacent Sonoran 

 regions ( ? exclusively) on Juniperus.* The type from New Mexico. 



Specimens examined: UNITED STATES. COLORADO. Mesa Grande 

 (Purpus, 2). Durango (Tweedy, 596-8; Parsons, 1897). Hotchkiss 

 (Cowen, 1892). Mancos (Baker, Earle & Tracy, 92}. Delta (Hedgcock, 

 9319). UTAH. St. George ( Palmer, 1875, 1877). Tooele Co. (Jones, 

 1900). Antelope Island (Jones, 2081). Kanab (Jones, 6045). East of 

 Gunnison (Ward, 360). Diamond Valley (Goodding, 884). Milford 

 (Goodding, 1026). Ephraim (Hedgcock, 3993). Nephi Mts. (Hedgcock, 

 8136). ARIZONA. Bill Williams Mts. (Bigelow, 6). Camp Apache 

 (Rothrock, 261, 814). Chiricahua Mts. (Rothrock, 6510; Blumer, 1525, 

 1532, 1956, 1990; Burrall, 1127-9). Cariso (Brandegee, 1234). Santa 

 Rita Mts. (Pringle, 1884). Santa Catalina Mts. (Hedgcock & Long, 

 9817). Ft. Huachuca (Wilcox, 1892; Tourney, 1894, 1895). Benson 



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



