BOEEALES FLAVESCENTES 39 



Specimens examined : UNITED STATES. NEW MEXICO. Mesilla Park 

 (Standley, 525, 1906; Wooton, 1902, 1906; Hedgcock, 9953}. Santa Fe 

 to the Rio Grande (Wislizenus, 41, 1846-7). Without locality (Wright, 

 15, 1851 ; 1785, 1851-2). Silver City (Metcalfe, 31 the type). Caruth- 

 ers Ranch (Hedgcock & Long, 9861). Mangas Springs (Metcalfe, 26, 

 more persistently villous than usual). Mimbres River (Vreeland, 808). 

 Las Graces (Simpson; Lay, 1903). Rincon (Blumer, 1905). Turkey 

 Creek Canon ( f Hedgcock, 841). TEXAS. El Paso (Havard, 1881 ; Jones, 

 1884). Eldon (Havard, Nov. 1881). MEXICO. CHIHUAHUA. Ciudad 

 Juarez. (Stearns, 1911). 



Phoradendron coloradense n. sp. 



Not forked, the rather long and slender branches without cataphyls, 

 dioecious. Internodes rather short (2x30-40 mm.), from velvety becom- 

 ing glabrous like the foliage. Leaves oblanceolate-obovate, very obtuse, 

 1.5-2x3-6 cm., cuneately slender-petioled for about 10 mm. Spikes mostly 

 solitary, rather long (30-50 mm.), essentially glabrous, with about 3 

 joints clavate and some 6-flowered when pistillate or oblong and 20- to 

 30-flowered when staminate: peduncle 5-10 mm. long: scales ciliate. 

 Fruit white, subglobose, glabrous, about 5 mm. in diameter, in rather 

 distinct whorls : sepals glabrous, usually closely inflexed. Plate 37. 



Sonoran region ( ? exclusively) on Prosopis. The type from Cali- 

 fornia. 



Specimens examined: UNITED STATES. CALIFORNIA. Fort Yuma 

 (du Barry, Feb. 4, 1865, the type; Thomas). Colorado River (Schott). 

 The Needles (Jones, May 1884). A plant from Cameron's ranch, La- 

 guna, Cal., with leaves ranging from nearly round to obovate, 3-4x5-6 

 cm. (Schoenfeldt, 3687), doubtless also belongs here. 



Phoradendron longispicum n. sp. 



Not forked, the rather long but slender branches without cataphyls, 

 dioecious. Internodes rather long (2-3x40-50 mm.), subcanescently vel- 

 vety-tomentose, like the foliage, or the latter glabrate and rather glossy. 

 Leaves elliptical-obovate to oblanceolate, very obtuse, 2-3.5x4-6 or even 

 7 cm., cuneately rather stout-petioled for about 10 mm. Spikes some- 

 times clustered, moderate (15-30 mm., lengthening to 40 mm. in fruit), 

 short- villous, with 3-5 joints clavately about 12-flowered when pistillate 

 and oblong and about 20-flowered when staminate: peduncle 3-6 or 10 

 mm. long : scales short-villous and ciliate. Fruit white, subglobose, gla- 

 brous, about 4 mm. in diameter, in rather distinct whorls: sepals short- 

 villous at base, nearly meeting. Plates 38, 39. 



