THE GENUS PHORADENDRON 
Stem not 4-angled. Mexican or Central 
American. VERNICOSAE. 
Fruit not tuberculate though sometimes wrinkled 
or minutely papillate. 
Leaves equally or obscurely nerved on both sides. 
Mexican or Central American. VERNICOSAE. 
West Indian. 
Leaves lanceolate or elliptical. 
CHRYSOCARPAE. 
Leaves obovate-spatulate. DOMINGENSES. 
Of the Pacific Islands. P. Townsendi: 
Leaves fine-nerved above, heavy-nerved 
beneath. P. laxiflorum. 
Flowers prevailingly 4-ranked on each joint. 
Commonly varying into 2 ranks.—See above. 
Often varying into 4-+2 series, i. e. with an extra flower 
interposed at top between the two rows of flowers 
over each seale of the spike. a. 
a Fruit tuberculate. 
Stem sharply 4-angled. 
Leaves obovate. Brazilian. P. emarginatum. 
Leaves narrowly lanceolate. West Indian. P. gracile. 
Leaves subelliptieal. Argentine. P. argentinum. 
Stem not sharply 4-angled. 
Argentine. Leaves short. ARGENTINAE. 
. Uruguayan. Leaves elongated. FALCIFERAE. 
Mexiean or Central American. ANNULATAE. 
a Fruit not tuberculate. 
Stem sharply 4-angled. 
Sepals closely meeting in fruit. QUADRANGULARES. 
Sepals not meeting: stem rhombic. RUBRAE. 
Stem terete or 2-edged, at first somewhat rhombieally 
compressed or 4-lined. 
Leaves drying golden, with thin revolute margin. 
Brazilian. NITENTES. 
Leaves not golden-glossy. 
Drying thin, sharp nerved. 
Mexiean. NERVOSAE. 
Central American. P. Cooperi. 
South American. 
Leaves narrow. ANGUSTIFOLIAE. 
Leaves broad. ANDINAE. 
West Indian. CHRYSOCARPAE. 
Coriaceous or heavy. 
Rather sharp-nerved. 
Dimidiate. South American. DIMIDIATAE. 
