78 THE GENUS PHORADENDRON 
_> PHORADENDRON REICHENBACHIANUM Oliver. 
Phoradendron Reichenbachianum Oliver, Vidensk. Meddel. Naturhist. 
Foren. Kjöbenhavn. 1864. p. 175. 
Viscum Reichenbachianum Seemann, Bot. Herald. p. 296. pl. 62. 1852-7. 
Scarcely forked, the long stout branches with basal eataphyls 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 em., thick and dull, rather abruptly petioled for 10-15 mm. 
Spikes mostly clustered, rather 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. Reichenbachianum). Jalisco (Diguet, 108). 
Tlalpuxahua, near Toluca (Diguet). Jordana, near Toluca (Gregg, 722, 
1849). Without locality (Graham, 233). 
> PHORADENDRON ROBUSTISSIMUM Eichler. 
Phoradendron robustissimum Eichler in v. Martius, Fl. Brasil. vol. 5. 
pt. 2. p. 122. 1868. 
Somewhat  pseudodiehotomous, microscopically  cellular-papillate 
throughout, the rather long branches with basal eataphyls only, dioe- 
eious?. Internodes moderate (2-5x50-70 mm.), transiently somewhat 
rhombieally compressed becoming terete. Cataphyls a single pair, nearly 
basal, scarcely tubular. Leaves elliptical ог subovate, obtuse or retuse, 
2.5-8.5х4.5-6.5 or even 5x8 em., 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, 
Dec. 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 
