62 THE GENUS PHOEADENDKON 



PHORADENDRON PACHYARTHRON Eichler. 



Phoradendron pachyarthron Eichler in v. Martius, Fl. Brasil. vol. 5. pt. 



2. p. 122. 1868. 



Phoradendrum pachyarthron Urban, Bot. Jahrb. vol. 23. Beibl. 57. p. 33. 

 1897. 



Scarcely forked, dull, the moderate branches with basal cataphyls 

 only, dioecious?. Internodes moderate (3-4x40-60 mm.), somewhat an- 

 cipitally compressed, becoming terete. Cataphyls a single pair about 5 

 mm. from the base or frequently 1 or 2 additional pairs at short intervals, 

 scarcely tubular. Leaves rather elliptical below becoming lanceolate 

 above, obtuse, 2-5.5x5-9 cm., cuneately subpetioled for 15-20 mm. Spikes 

 often clustered, rather short (20 mm.), with about 4 subglobose joints 

 some 6-flowered in 4+2 series when pistillate: peduncle 2 mm. long: 

 scales evanescently ciliolate. Fruit?. Plate 71. 



Mexican tableland. The type from near Real del Monte. 

 Specimens examined: MEXICO. Banos (Ehrenberg, 1011, Dec. 1838, 

 the type). 



Phoradendron Schumann! n. sp. 



Scarcely forked, rather glossy, the moderate branches with basal cata- 

 phyls only, dioecious?. Internodes moderate (2-4x20-60 mm.), quickly 

 terete. Cataphyls a single pair 5 or mostly 10-15 mm. above the base, or 

 2 pairs 10-15 mm. apart, acutely spreading. Leaves oblong-elliptical to 

 elliptical lanceolate, very obtuse, 1.5-2.5x6-8 cm., cuneately subpetioled 

 for about 10 mm. Spikes often clustered, rather long (20 or 25 to 50 or 

 70 mm.), with some 4 to 6 joints 6- to 12- or 14-flowered in 4 or 4+2 ser- 

 ies: peduncle 2-4 mm. long: scales minutely ciliate. Fruit subglobose, 

 smooth, 5 mm. in diameter : sepals closely inflexed. Plates 71, 72. 



Western Sierra Madre region ( f exclusively) on Quercus. The type 

 from Jaral. 



Specimens examined: MEXICO. Mountains about Jaral (Walther 

 Schumann, 711, Dec. 25, 1885, the type, Nov. 20, 1886). Sierra Nana- 

 ruchic, Chihuahua (Endlich, 1219). Santiago Papasquiaro, Durango 

 (Palmer, 84). Without locality (Karwinski, 1844). Sierra Madre of 

 N. W. Mexico (Seemann, 2140). 



Phoradendron Purpusi n. sp. 



More or less pseudodichotomous, rather granular, the elongated 

 branches with basal cataphyls only, dioecious ?. Internodes rather short, 

 (3x30-50 mm.), somewhat compressed and dilated beneath the nodes be- 

 coming terete. Cataphyls mostly 2, sometimes 3 pairs, one basal or nearly 

 so and the others at intervals of 5-10 mm., scale-like. Leaves somewhat 

 falcately lanceolate, acute to very obtuse, 2 or 2.5-4x8-15 cm., cuneately 



