78 THE GENUS PHOKADENDRON 



PHORADENDRON REICHENBACHIANUM Oliver. 



Phoradendron Reichenbachianum Oliver, Vidensk. Meddel. Naturhist. 



Foren. Kjobenhavn. 1864. p. 175. 

 Viscum Reichenbachianum Seemann, Bot. Herald, p. 296. pi. 62. 1852-7. 



Scarcely forked, the long stout branches with basal cataphyls only, 

 dioecious. Internodes moderately long (5-10x50-100 mm.), from sharply 

 ancipital becoming terete. Cataphyls a single pair, 5 mm. above the 

 base, not tubular. Leaves ovate-lanceolate or elliptical-lanceolate, ob- 

 tuse, 3-4x8-10 cm., thick and dull, rather abruptly petioled for 10-15 mm. 

 Spikes mostly clustered, rafcher long (30-50 mm.), smooth, stout, with 

 about 6 globose joints some 8- to 10-flowered when pistillate and 12- to 

 30-flowered in 4+2 series when staminate : peduncle 3-5 mm. long : scales 

 little or transiently ciliate. Fruit (immature) subglobose, nearly smooth, 

 3 mm. in diameter: sepals closely inflexed. Plate 100. 



Western Sierra Madre and Cordilleran regions of Mexico ( ? exclu- 

 sively) on Quercus. The type from western Mexico. 



Specimens examined: MEXICO. Sierra Madre, N. W. Mexico (See- 

 mann, 2141, the type of V. ReichenbacManum). Jalisco (Diguet, 108). 

 Tlalpuxahua, near Toluca (Diguet). Jordana, near Toluca (Gregg, 722, 

 1849). Without locality (Graham, 233). 



PHORADENDRON ROBUSTISSIMUM Eichler. 



Phoradendron robustissimum Bichler in v. Martius, Fl. Brasil. vol. 5. 

 pt. 2. p. 122. 1868. 



Somewhat pseudodichotomous, microscopically cellular-papillate 

 throughout, the rather long branches with basal cataphyls only, dioe- 

 cious?. Internodes moderate (2-5x50-70 mm.), transiently somewhat 

 rhombically compressed becoming terete. Cataphyls a single pair, nearly 

 basal, scarcely tubular. Leaves elliptical or subovate, obtuse or retuse, 

 2.5-3.5x4.5-6.5 or even 5x8 cm., abruptly cunate-petioled for 5 mm. Spikes 

 mostly clustered, rather long (30-50 mm.), with about 5 moderate joints 

 some 16-flowered in 4 series when pistillate: peduncle 3-5 mm. long: 

 scales scarcely ciliate. Fruit (immature) elongated, smooth, 3x5 mm. : 

 sepals closely inflexed. Plate 101. 



Isthmian region. The type from Costa Rica. 



Specimens examined: COSTA RICA. Ojos de Agua (Hoffmann, 360, 

 Dee. 1856, the type). Nicoya (Tonduz, 13705). 



Phoradendron robustissimum simulans n. var. 



Leaves elongated-elliptical, 3-5x8-12 cm., obtuse, with a heavy apical 

 mucro, rather gradually cuneate at base. Staminate spikes with the 



