64 THE GENUS PHORADENDRON 
veiny, cuneately petioled for 20-30 mm. Spikes mostly clustered, stout, 
long (30, becoming 55-60 mm. in fruit), smooth, with about 5 clavate 
joints 8- to 12-flowered in 4+2 series when pistillate or with double this 
number of flowers when staminate: peduncle scarcely 5 mm. long: scales 
little ciliate. Fruit subglobose, smooth, deeply immersed in the recep- 
tacular cups: sepals closely inflexed.—Plate 75. 
Cordilleran region of Mexico (? exclusively) on Quercus.—The type 
from Oaxaca. 
Specimens examined:—Mexico. Oaxaca. Соуша to Cuyamacalco, 
Cuieatlan (Conzatti & Gomez, 2380, June 22, 1909,—the type). Хауа- 
eatlan (Rusby, Mar. 1910). 
A form with thicker less nerved leaves not attenuate at tip, and short 
acutely compressed internodes, from Tecomatlan to Pueblo Viejo, Oax. 
(Conzatti, 1897), may be distinguished as var. tecomatlana (РІ. 75). 
With two pairs of cataphyls respectively some 10 and 60 mm. above the 
base and leaves scarcely 12 em. long, it is var. nochixtlanensis (Huauh- 
chilla, Nochixtlan, Oaxaca, at 2500 m. (Conzatti de Gonzales, 1187, June 
1901).— Plate 76. 
12. LANCEOLATAE. 
Leaves moderately fleshy, narrowly lanceolate, rather obscurely basi- 
nerved. Cataphyls a single pair, on the basal joint only. Flowers m 
44-2 series. Fruit ovoid, smooth, with closed sepals. Mexico. 
Shoots quickly terete: leaves heavy-nerved. P. lanceolatum. 
Shoots ancipitally eompressed : leaves fine-nerved. P. falcatum. 
„> PHORADENDRON LANCEOLATUM Engelmann. 
-Phoradendron lanceolatum Engelmann, Mem. Amer. Acad. n. s. vol. 4. 
p.59. 1849. 
Not forked, the moderate branches with basal eataphyls only, dioe- 
cious. Internodes moderate (2-3x20-40 mm.), smooth, nearly terete. 
Cataphyls a single pair, about 8 mm. above the base, aeute, spreading. 
Leaves short-lanceolate, obtuse, 1-1.5x6-8 em., indistinetly nerved, eune- 
ately subpetioled for about 5 mm. Spikes mostly solitary, moderate 
(30-40 mm.), rather stout, smooth, with about 5 oblong joints 6- to 10- 
flowered when pistillate and 15- to 20-flowered in 44-2 series when stam- 
inate: peduncle 2-4 mm. long: scales ciliate. Fruit ovoid, 3x4 mm., 
smooth : sepals closely inflexed.— Plate 77. 
Eastern Sierra Madre region (? exclusively) on Quercus.—The type 
from northern Mexieo. 
Specimens examined:—Mexico. Rinconada, between Monterrey and 
Saltillo (Gregg, 255,—the type; Thurber, 865). 
