EXPLANATION OF PLATES 169 



Plate 55. a. PHORADENDRON PENINSULARE. The type (Mexico, 

 Rose, 16354). b. P. SACCATUM. The type (Mexico, Rose, 16562). Both 

 photographed by permission in the U. S. National Herbarium. 



Plate 56. PHORADENDRON ROBINSONII. The type, staminate (Mex- 

 ico, Pringle, 6272). 



Plate 57. a. PHORADENDRON ROBINSONII. Fruiting specimen 

 (Mexico, Rose & Hay, 5939). b. P. ROBINSONII HINDSI (Mexico, Hinds, 

 1841) ; photographed by permission at Kew. 



Plate 58. PHORADENDRON VELUTINUM. a. Type of Viscum veluti- 

 num, staminate (Mexico, Berlandier, 1158) ; photographed by permis- 

 sion in the Delessert herbarium at Geneva, b. A pistillate specimen 

 (Mexico, Pringle, 9509). 



Plate 59. PHORADENDRON SCABERRIMUM. a. The type, pistillate 

 i, Mexico, Rose, 3409). b. A second specimen (Mexico, Rose, 1712). 

 Both photographed by permission in the U. S. National Herbarium. 



Plate 60. PHORADENDRON LONGIFOLIUM. The type (Mexico, Kar- 

 winski, 1833) ; photographed in the Brussels herbarium for Professor 

 Bommer. 



Plate 61. PHORADENDRON USPANTANUM. The type (Guatemala, 

 Heyde & Lux, 3141). 



Plate 62. PHORADENDRON CALYCULATUM. The type collection of 

 Viscum falcatum Hooker, staminate (Mexico, Galeotti, 2696) ; photo- 

 graphed in the Brussels herbarium for Professor Bommer. 



Plate 63. PHORADENDRON CALYCULATUM. A pistillate specimen 

 (Mexico, Pringle, 4699). 



Plate 64. a. PHORADENDRON CALYCULATUM FILIPES. The type, 

 staminate (Mexico, Purpus, 6279) ; photographed by permission at the 

 New York Botanical Garden, b. P. CALYCULATUM GONZALEZI. The 

 type (Mexico, Conzatti and Gonzalez, 295) ; photographed by permis- 

 sion in the Gray herbarium at Cambridge. 



Plate 65. PHORADENDRON ANNULATUM. a. The type, pistillate 

 (Costa Rica, Oersted, 14) ; photographed by permission in the herba- 

 rium at Copenhagen, b. A specimen with young and matured fruit 

 (Guatemala, Smith, 2610). 



Plate 66. PHORADENDRON MULTIFLORUM. The type, staminate 

 (Guatemala, Kellerman, 5154). 



Plate 67. PHORADENDRON MULTIFLORUM. A pistillate specimen, 

 one branch deformed into a gall (Guatemala, Kellerman, 5155) ; pho- 



