52 THE GENUS PHOKADENDRON 



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

 phyls, dioecious. Internodes moderate (3-4x20-50 mm.), yellow- villous 

 like the foliage. Leaves falcately lanceolate, acute or rather acuminate, 

 1-2.5x7-10 cm., conspicuously nerved and veiny, cuneately narrowed to a 

 petiole 5-10 mm. long. Spikes mostly clustered, short (15-20 mm.), vil- 

 lous, with about 3 subglobose joints scarcely 20-flowered when pistillate, 

 or 4 more clavate joints about 30-flowered when staminate: peduncle 

 3 mm. long: scales villous and long-ciliate. Fruit subglobose, glabrous, 

 about 4 mm. in diameter, in compact whorls : sepals glabrate, more or less 

 parted. Plate 58. 



Mexican tableland and through the Cordillera into Central America, 

 on Cornus, Crataegus, etc. The type from Toluca. 



Specimens examined : MEXICO. Real del Monte ( Coulter, 21 ) . Regla 

 (Ehrenberg, 422). Queretaro (Herb. Berolin.). Toluca (Berlandier, 

 1158, the type of V. velutinum; Andrieux, 347; Holler, 410). Valley 

 of Mexico (Schmitz, 150; Schaffner, 188). Eslava (Pringle, 8058, 9509, 

 13190). Deserta Vieja (Bourgeau, 782). San Nicolas and Maromas 

 (Bourgeaii, 1004, 1116). Contreras (Endlich, 634). Salazar (Endlich, 

 1048). Canada Grande (Ross, 148). San Angel (Uhde, 1026). Zim- 

 apan (Aschenborn) . Istaccihuatl (Purpus, 1777). Sta. Ana, Puebla 

 (Arsene, 8). Chinantla (Liebmann). Without locality (Paul, Duke of 

 Wurtemberg, 1831; Schaffner, 459; Uhde, 1027). GUATEMALA. Sacate- 

 pequez. Antigua (Kellerman, 4541). 



An unusually polymorphic species, the type possessing very narrow 

 and long leaves. 



7. LONGIFOLIAE. 



Leaves large for the group, usually greatly elongated, scarcely atten- 

 uate, rather thick, but sometimes conspicuously nerved. Shoots scarcely 

 angled but distinctly compressed at the nodes. Mountains of Mexico 

 and Guatemala. 



Leaves scarcely nerved. 



Broad for the group (10-25 mm.). P. scaberrimum. 



Narrow (5 mm.). P. longifolium. 



Leaves distinctly about 5-nerved. P. uspantanum. 



Phoradendron scaberrimum n. sp. 



Not forked, the long moderately stout branches without cataphyls, 

 dioecious?. Internodes moderate (4x25-60 mm.), scabrous-granular, at 

 first yellow with microscopic tomentum like the foliage, dilated below the 

 nodes to about 10 mm. Leaves narrowly lanceolate, subacute to obtuse 

 or emarginate, 1-2.5x10-16 cm., subpetiolately cuneate for 5-10 mm., 



