164 THE GENUS PHORADENDRON 
the drainage of the Orinoco and Amazon rivers; (17) Отіпосап re- 
gion, like the Amazonian appearing as a barrier to distribution rather 
than a distributional region for Phoradendron; (18) Venezuelan re- 
gion, a meeting point of the Isthmian, Andean and Caribbean regions; 
(19) Galapageian region, essentially an oceanie extension of the Vene- 
zuelan and Andean regions. 
West Indies: (20) Caribbean region, as far north as the Anegada 
passage; (21) Antillean region; (22) Bahamian region, in Phoraden- 
dron showing absolute isolation from the adjacent Atlantie region of 
Florida. 
Plate 1. Навіт. Phoradendron villosum, on Quercus. Photo- 
graphed in California by George E. Nichols. Greatly reduced. 
Plate 2. Hasır. Phoradendron Libocedri, on Libocedrus, at the 
entrance to the Yosemite valley, California. Photographed by George 
D. Fuller. Р. juniperinum, on Juniperus, at the rim of the grand 
сайоп, Arizona. Photographed by Charles F. Hottes. Both greatly 
redueed. 
Plate 3. MoRPHOLOGY of foliage in the Aphyllae. a. Phoradendron 
juniperinum, with scales not constricted at the base (Wright). b. P. 
ligatum, with seales eonstrieted at the base (Oregon, Cusick,—the 
type). x 10. 
Plate 4. MoRPHOLOGY of the Aphyllae. Phoradendron juniperinum, 
showing scale-like leaves, fruiting spikes each of a single 2-flowered 
joint, and globose berry-like fruit with parted sepals (Arizona, Grif- 
fiths,—from fresh material). x 5. 
Plate 5. Мокрногоах of spikes in the Flavescentes. 
a. Staminate spikes of (from left to right) Phoradendron flaves- 
cens (Missouri, Eggert), Р. flavescens orbiculatum (northern Texas, 
Bush), P. macrotomum (Florida, Curtiss), P. Engelmanni (southern 
Texas, Lindheimer), P. Engelmanni Claviger (southern Texas, T're- 
lease), P. villosum (Oregon, Engelmann), P. Cockerellii, (New Mex- 
ico, Metcalfe), P. macrophyllum (Arizona, Gilbert), and P. Coryae 
(Arizona, Blumer). All х 3. 
b. Pistillate spikes of (from left to right) Phoradendron flaves- 
cens (Virginia ?, Curtiss), P. macrotomum (Florida, Curtiss,), P. En- 
gelmanni (southern Texas, Lindheimer), P. villosum, in fruit (Oregon, 
Howell), P. Cockerellii (New Mexieo, Metcalfe), P. macrophyllum 
(Arizona, Blumer), and P. Coryae (Arizona, Thornber). All x 3. 
