148 THE GENUS PHOEADEND8ON 



255). COSTA RICA. San Mateo (Biolley, 7072; 7078, 1892,. the type of 

 P. Biolleyi). Buenos Aires (Pittier, 3903). Juis (Tonduz, 11458-9). 

 Without locality (Oersted, 3, 3086, in part). NICARAGUA. Bluefields 

 (Herb. Grisebach.). GUATEMALA. Patalul, Solola (Kellerman, 5822). 

 Torola, Escuintla (Smith, 2039). Cubilquitz, Alta Verazaz (v. Tuerck- 

 heim,8745). BRITISH HONDURAS. Toledo (Peck, 530). Manatee Lagoon 

 (Peck, 444). MEXICO. "Temperate East Mexico" (Leibold, the type of 

 V. laurifolium). Without locality (Haenke, the types of V. corni- 

 folium and V. ellipticum). Fortin (Kerber, 301). Orizaba to Cordoba 

 (Bourgeau, 1962,2175). Zacuapam (Purpus, 3693, 3806, 1912). El Mira- 

 dor (Sartorius; Galeotti, 2695; Liebmann). Motzorongo (J. G. Smith, 

 263). 



The distinctly hexastichous forma hexasticha, which Urban, under 

 Phoradendrum, (Bot. Jahrb. vol. 23. Beibl. 57. p. 3. 1897) bases upon 

 Viscum cornifolium Presl (PL 222), is further represented from Mexico 

 (Smith, 263), and finds a counterpart in certain Ecuadorean specimens 

 (Sodiro, 1872, 1874, 148/28) . Ule's no. 4800, from about Rio de Janeiro, 

 presents the exceptional phenomenon in the genus of somewhat branched 

 spikes in some cases, and may be known as f . composita. 



52. GARDNERIANAE. 



Leaves rather small, more or less indistinctly basinerved. Shoots sub- 

 terete or variously compressed, sometimes very thin and flat. Cataphyls 

 a single basal pair on each joint. Flowers in 4 or 4+2 series. Fruit 

 ovoid, smooth, with parted sepals. South America. 



Shoots subterete. 



Leaves ovate, broad (2 cm.). P. Gardnerianum. 



Leaves lanceolate, moderate (1.5 cm.). P. essequibense. 

 Leaves elliptical, moderate (1 cm.). 



Shoots terete. . P. strongyloclados. 



Shoots somewhat compressed. P. Johnstoni. 

 Leaves oblong, narrow (.5 cm.). 



Leaves falcate. P. surinamense. 



Leaves not falcate. P. Caesalpiniae. 



Shoots flat, often greatly dilated. P. platycaulon. 



PHORADENDRON GARDNERIANUM (Urban). 



Phoradendrum Gardnerianum Urban, Bot. Jahrb. vol. 23. Beibl. 57. p. 

 11. 1897. 



More or less pseudodichotomous or cymosely forked, the moderate 

 branches with cataphyls on all joints, androgynous. Internodes mod- 

 erate (2-3x40-70 mm.), quickly terete. Cataphyls a single basal pair, or 



