BOREALES BOLLEANAE 27 



MEXICO. CHIHUAHUA. Sierra Madre (Seemann,-ihe type of V. Bollea- 

 num; Endlicli, 1222: Jones, Sept. 1903, a form with short leaves 2x7 

 mm., approaching the preceding in roughening and length of peduncle. 

 Near San Julian (Nelson, 4921}. Santa Eulalia Mts. (Pringle, 256, 

 1885). DURANGO. Vicinity of Durango ( 1 Palmer, 778, noted as on a 

 Madrona, apparently Arbutus arizonica, and hence very aberrant in the 

 group which is usually found on conifers). Mesa de Sandia (Goodding, 

 2149). Guanacevi (Nelson, 4756}. TEPIC. Sta. Teresa (Rose, 3442}. 



Phoradendron saltillense n. sp. 



Not forked, the moderately long and stout branches without cata- 

 phyls, dioecious. Internodes short (2-4x10-20 mm.), papillate-hispid. 

 Leaves narrowly oblong, submucronately acute, sessile, 2-3x20-30 mm. 

 Spikes more or less clustered, short (5-6 mm.), nearly smooth, the single 

 joint 2-flowered when pistillate and about 6-flowered when staminate: 

 peduncle 2 mm. long. Fruit?. Plate 16. 



Chihuahuan region ( ? exclusively) on Juniperus. The type from 

 northern Mexico. 



Specimens examined : MEXICO. San Antonio de las Alazanes, near 

 Saltillo (Gregg, 399, 1848, the type). 



Phoradendron densum Torrey n. sp. 

 Phoradendron densum Torrey in herb. 



Not forked, the rather short and thick branches without cataphyls, 

 dioecious. Internodes short (-2-4x5-10 mm.), usually papillate-rough- 

 ened. Leaves shortly oblanceolate, usually very obtuse, sessile, 4-6x12-15 

 or rarely 20 mm. Spikes sometimes clustered, very short (3 mm.), 

 smooth, with 1 or rarely 2 joints 2-flowered when pistillate and about 

 12-flowered when staminate : peduncle 1-2 mm. long. Fruit straw-colored, 

 subglobose, about 4 mm. in diameter : sepals somewhat parted. Plate 20. 



Calif omian and Sonoran regions ( ? chiefly) on Juniperus. The 

 type from California. 



Specimens examined : UNITED STATES. OREGON. Lake Co. ( Cusick, 

 2260a}. Klamath Reservation (Covttle, 1352}. Scott River Valley 

 (Pond, 191}. Klamath Co. (Walpole, 418; Applegate, 1899). CALI- 

 FORNIA. Mt. Shasta (WUkes Exped., 1567, 1838-42 the type). Near 

 Shasta (? Coffman, 1913 on Cupressus}. Duffield's Ranch (IBigelow, 

 1, 1854). Klamath River (Engelmann; Butler, 1071}. Inyo Mts. (Co- 

 ville & Funston, 589}. Geysers, Lake Co. (Brewer, 865}. Siskiyou Co. 

 (Copeland, 3542; Walpole, 230; Eastwood, 3542}. Hoey (Tillotson, 

 8329}. Yreka (Engelmann & Sargent, 1880). Lassen Co. (Baker & 



