62 THE GENUS PHORADENDRON 
PHORADENDRON PACHYARTHRON Eichler. 
Phoradendron pachyarthron Eichler in v. Martius, Fl. Brasil. vol. 5. pt. 
2. р. 122. 1868. 
Phoradendrum pachyarthron Urban, Bot. Jahrb. vol. 23. Beibl. 57. p. 33. 
1897. 
Searcely 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, 
seareely tubular. Leaves rather elliptical below becoming lanceolate 
above, obtuse, 2-5.5x5-9 em., euneately 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. Baños (Ehrenberg, 1011, Dec. 1838, 
—the type). 
> Phoradendron Schumanni n. sp. 
Searcely forked, rather glossy, the moderate branches with basal eata- 
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 
elliptieal laneeolate, very obtuse, 1.5-2.5x6-8 em., euneately subpetioled 
for about 10 mm. Spikes often clustered, rather long (20 or 25 to 50 or 
10 mm.), with some 4 to 6 joints 6- to 12- or 14-flowered іп 4 or 44-2 ser- 
les: 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 (? 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- 
ruchie, Chihuahua (Endlich, 1219). Santiago Papasquiaro, Durango 
(Palmer, 84). Without loeality (Karwinski, 1844). Sierra Madre of 
N. W. Mexieo (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 
faleately lanceolate, aeute to very obtuse, 2 or 2.5-4x8-15 em., cuneately 
