166 THE GENUS PHORADENDRON 



Plate 18. PHORADENDRON TEQUILENSE. Type : a, pistillate ; b, stam- 

 inate (Mexico, Pringle, 4434). 



Plate 19. PHORADENDRON BOLLEANUM. a. Fragment of type (Mex- 

 ico, Seemanri) , and branch of collection by Pringle, no. 256, of which 

 other specimens are shown in b. 



Plate 20. PHORADENDRON DENSUM. a. Type ( California, Wilkes Ex- 

 pedition, 1567) ; photographed by permission at the New York Bo- 

 tanical Garden, b. An Oregon specimen (Cusick, 2260). 



Plate 21. PHORADENDRON DENSUM PARISHII. Type (California, 

 Parish, 899). 



Plate 22. a. PHORADENDRON PAUCIPLORUM. Type (California, 

 Bigelow, 2) ; photographed by permission at the New York Botanical 

 Garden, b. P. GUADALUPENSE. Type number (Guadalupe Island, Pal- 

 mer, 85) ; photographed by permission in the Boissier herbarium. 



Plate 23. PHORADENDRON GUADALUPENSE. Type (Guadalupe Island, 

 Palmer, 85) . 



Plate 24. PHORADENDRON FLAVESCENS. a. Staminate shoot (Mis- 

 souri, Eggert). b. Pistillate shoots, bearing flowers of the present sea- 

 son and mature fruit from flowers of the previous autumn (Fresh ma- 

 terial from North Carolina, Coker, 1911). 



Plate 25. PHORADENDRON FLAVESCENS. Two pistillate specimens. 

 a. Viscum purpureum of Willdenow, but not of Linnaeus (Pennsyl- 

 vania, Muhleriberg, 639, as no. 18295 in the Willdenow herbarium) ; 

 photographed by permission at Dahlem. b. Viscum serotinum Rafin- 

 esque (Arkansas, Rafinesque) ; photographed by permission in the 

 Delessert herbarium at Geneva. 



Plate 26. PHORADENDRON FLAVESCENS ORBICULATUM. a. A stam- 

 inate shoot (Texas, Bush, 1160). b. Pistillate specimens with flowers 

 and ripened fruit (Fresh material from Arkansas, von Schrenk, 1912). 



Plate 27. PHORADENDRON MACROTOMUM. Staminate and pistillate 

 flowering shoots, and mature fruit from flowers of the previous season 

 (Fresh material from Florida, Schnabel, 1911). 



Plate 28. PHORADENDRON EATONI. Type, staminate (Florida, Ea- 

 ton, 1310) ; photographed by permission at the New York Botanical 

 Garden. 



Plate 29. PHORADENDRON ENGELMANNI. a. The type, staminate 

 (Texas, Lindheimer, 406). b. A pistillate specimen (Texas, Jermy). 



Plate 30. PHORADENDRON ENGELMANNI. Staminate and pistillate 

 flowering specimens, and fruit from flowers of the previous winter 

 (Fresh material from Texas, Heald, 1911). 



