108 



THE GENUS PHOEADENDRON 



31. QUADRANGULAKES. 



Leaves rather small, prevailingly elongated, thin, basinerved. Shoots 

 for a time sharply 4-sided or 4-lined. Cataphyls usually a single pair, 

 on the basal joint only. Flowers several, usually in 4 or 4+2 series. 

 Fruit mostly red or orange and minutely cellular-papillate : sepals closely 

 inflexed and meeting. Central and South America and the West Indies. 



Fruit white : leaves elliptical-oblong to obovate. Andean. 



Leaves cuneately subsessile. 

 Leaves abruptly petioled. 

 Fruit red or orange. 

 Brazilian. 



Leaves subsessile. 



Young fruit elongated. 

 Young fruit rounded. 



Leaves oblanceolate-sp"atulate. 

 Leaves obovate-spatulate. 

 Leaves slenderly subpetioled. 

 Elliptical-obovate. 

 Linear-oblanceolate. 

 Venezuelan. 

 Central American. 



Leaves lance-oblong. 

 Leaves elliptical-obovate. 

 Mexican. 



Leaves elliptical-obovate. 



Spikes stalked. Continental. 

 Spikes subsessile. Yucatecan. 

 Leaves oblanceolate-oblong. Insular. 

 West Indian. 



Leaves lanceolate or oblanceolate-obovate. 

 Leaves linear-oblanceolate. 



P. quadrangulare. 

 P. viscifolium. 



P. Wiesnerianum. 



P. affine. 

 P. Martianum. 



P. piauhyanum. 



P. microphyllum. 



P. venezuelense . 



P. ceibanum. 

 P. zacapanum. 



P. tamaulipense. 



P. Gaumeri. 



P. Townsendi. 



P. antillarum. 

 P. gracile. 



PHORADENDRON QUADRANGULARE (Krug & Urban). 



Phoradendrum quadrangulare Krug & Urban, Bot. Jahrb. vol. 24. p. 35. 



1898. 

 Loranthus quadrangularis Humboldt, Bonpland & Kunth, Nov. Gen. Sp. 



vol. 3. p. 444. 1818. 



Viscum quadrangulare de Candolle, Prodromus. vol. 4. p. 283. 1830. 

 Viscum salicifolium Presl, Epimel. Bot. p. 254. 1849. 

 Phoradendron salicifolium Eichler in v. Martius, Fl. Brasil. vol. 5. pt. 2. 



p. 110. 1868. 



More or less pseudodichotomous, the rather long branches with basal 

 cataphyls only, androgynous. Internodes moderate (2-3x30-50 mm.), 

 resinous-dotted or somewhat cellular-papillate, rhombically quadrangn- 



