58 THE GENUS PHOEADENDEON 



Spikes long, with large scales. 



POLYGYNAE. 



Leaves heavy-nerved, fleshy. 



Lanceolate. Mexican. NERVOSAE. 



Dimidiate. Andean. OBLIQUAE. 



Leaves sharply nerved. 



Stem. 4-angled or winged. AMPLECTENTES. 

 Stem flattened or ancipital. 

 Leaves elliptical-dimidiate. 



DIMIDIATAE. 



Leaves lance-ovate, thin. ANDINAE. 



Stem terete. ENSIFOLIAE. 



Leaves clasping except in two species, thin and sharply nerved : stem 

 2- or 4- winged and acutely angled : flowers in 6 series, exception- 

 ally fewer or more. AMPLECTENTES. 

 Tomentose throughout. South American. ANOMALAE. 



9. ANNULATAE. 



Leaves elongated or narrow, rather thick though nerved from the 

 base. Shoots 2-edged for a time. Cataphyls a single pair on the basal 

 joint only. Flowers mostly in 4 series. Fruit warty. Southern Mexico 

 and Central America. 



Leaves relatively broad (1.5-2.5 cm). 

 Petiolar contraction slender. 



Leaves broadest below the middle. P. annulatum. 



Leaves broadest about the middle. P. multiflorum. 



Leaves cuneately subsessile. P. amplifolium. 



Leaves narrow ( .4-. 8 cm.). P. carneum. 



PHORADENDRON ANNULATUM Oliver. 



Phoradendron annulatum Oliver, Vidensk. Meddel. Naturhist. Foren. 



Kjobenhavn. 1864. p. 176. 

 PTioradendrum annulatum Urban, Bot. Jahrb. vol. 23. Beibl. 57. p. 3. 



1897. 



Not forked but more or less pseudodichotomous from the falling of 

 one lateral branch at a node, the rather long and stout branches with 

 basal cataphyls only, dioecious?. Internodes moderate (3-4x35-50 mm.), 

 somewhat resinous-dotted like the foliage, 2-edged or at first somewhat 

 quadrate becoming terete. Cataphyls a single pair, basal, somewhat 

 tubular, white-margined. Leaves lanceolate, obtuse to acute, 1.5-2x10-12 

 cm., cuneately contracted into a slender petiole 1-2x10 mm. Spikes 

 mostly solitary, moderate (30 mm. in fruit), smooth, with about 4 clavatc 

 joints 12-18-flowered in 4 or 4-f 2 series when pistillate : peduncle 3 mm. 



