60 THE GENUS PHORADENDRON 



PHORADENDRON CARNEUM (Urban). 



Plwradeudrum carneum Urban, Bot. Jahrb. vol. 23. Beiblatt 5. p. 1. 

 1897. 



Somewhat pseudodichotomous, the moderate branches with basal cata- 

 phyls only, dioecious! Internodes rather short (2-4x30-60 mm.), resin- 

 ous-dotted like the foliage, ancipital becoming terete. Cataphyls a single 

 pair, basal, somewhat tubular and white-margined. Leaves linear- 

 lanceolate, obtuse or mucronate to acute, .5-1.2x5-15 cm., rather evidently 

 3- or occasionally 5-nerved but scarcely veiny, cuneately narrowed for 

 5 to 10 mm. rather than petioled. Spikes mostly clustered, moderate 

 (20-30 mm.), smooth, with about 3 oblong joints some 8-flowered in 4 

 series when pistillate : peduncle 2-5 mm. long, bearing a few flowers when 

 elongated : scales and receptacular cups short-ciliate. Fruit globose, red- 

 dish-orange, 4-5 mm. in diameter, somewhat verrucose : sepals inflexed 

 and nearly or quite meeting. Plate 69. 



Western Sierra Madre region, extending onto the tableland and 

 through the Mexican Cordillera ( ? exclusively) on Ipomoea trees. The 

 type from Jalisco. 



Specimens examined: MEXICO. JALISCO. Guadalajara (Pringle, 

 1854, 1888, the type, 2668, 8647; Safford, 1438) . Zapotlan (Ross, 459} . 

 Chapala (Palmer, 719). Sayula (Jones, 570). Etzatlan (Barnes & Land, 

 284). Without locality (Diguet, 107). MICHOACAN. Morelia (Gregg, 

 745, 1849). GUANAJUATO. Guanajuato (Duges, 30, 266a). Empalme 

 de Gonzales (Rusby, 177, "on cotton- wood"). QUERETARO. Cadereyta 

 to Visaron (Rose, Painter & Rose, 9742). OAXACA (Conzatti, 1913). 



10. PRINGLEAE. 



Leaves linear-lanceolate, rather thick, somewhat evidently basinerved. 

 Shoots ancipital for a time. Cataphyls a single pair, on the basal joint 

 only. Flowers in 4+2 series. Fruit smooth, with closed sepals. South- 

 ern Mexico. 



Fruiting spikes short (15-20 mm.). P. Pringlei. 



Fruiting spikes moderate (25-35 mm.). P. Forestierac. 



Phoradendron Pringlei n. sp. 



Somewhat pseudodichotomous, the moderately long slender branches 

 with basal cataphyls only, dioecious. Internodes short (2x15-30 mm.), 

 varnished when young like the foliage, ancipital, somewhat dilated up- 

 wards, becoming terete. Cataphyls a single pair, 5-10 mm. above the 

 base, scarcely tubular. Leaves linear, submucronately rather acute, 

 .5-.8x7-16 cm., long-attenuate at base. Spikes usually solitary, short (10-15 



