34 THE GENUS PHORADENDEON 



P. orbiculatum Engelinann, Mem. Amer. Acad. n. s. vol. 4. p. 59. 1849. 



Differs from the type, into which it seems to pass, in its character- 

 istically nearly round leaves, 15-25x20-30 mm. Plate 26. 



Southwestern Atlantic region ( ? exclusively) on Quercus. The type 

 from Arkansas. 



Specimens examined. UNITED STATES. ARKANSAS. Little Rock 

 (Engelmann, 707, 1837, the type of P. orbiculatum ; von Schrerik, 1912) . 

 Arkansas Post (Kellogg, 1909). OKLAHOMA. Without locality (From 

 8. F. Trelease, 1915). LOUISIANA. Shreveport (von Schrenk, 1912). 

 TEXAS. Dallas (Bush, 1160}. Trinity River (1 Mearns, 171). Quitman 

 (Long ,12048). 



PHORADENDRON MACROTOMUM Trelease. 



Phoradendron macrotomum Trelease in Small, Shrubs of Fla. p. 121. 

 1913. 



Not forked, the moderate branches without cataphyls, dioecious. In- 

 ternodes rather long (2-4x30-40 mm.). Leaves prevailingly oblanceolate, 

 very obtuse, 1.5-2x5-7 cm., cuneately petioled for about 10 mm. Spikes 

 mostly solitary, moderate (20-30 mm.), lengthening to 60 or 70 mm. in 

 fruit), somewhat pubescent, with about 5 joints clavately about 6-flow- 

 ered when pistillate and some 20-flowered when staminate : peduncle 2-6 

 mm. long: scales somewhat tomentose. Fruit more or less greenish 

 white, rather ellipsoidal, glabrous, 4x5 mm., in distinctly separated 

 whorls : sepals nearly glabrous, closely inflexed. Plates 5, 27. 



South Atlantic region, on Fraxinus, Nyssa, Prunus, Punica, Quercus, 

 Xantnoxylum, etc. The type from Florida. 



Specimens examined : UNITED STATES. FLORIDA. Jacksonville ( Cur- 

 iiss, 4569, 1894, the type ; 2459; LightMpe, 1897 ; Long, 15214) . Hills- 

 borough Co. (Frednolm, 6474). Hibernia (Canby, 1869). Without lo- 

 cality (Gray, 1842; Gilbert, 1883). Manatee (Simpson, 49). Clarcona 

 (Meislahn, 155). Orange Springs (M ell, 1907). Gainesville (Scnnabel, 

 1911; Long, 15133, 15242). Red Bay (Ward, 1912). Clearwater Har- 

 bor (PUsbry, 1904). Palatka (Smith, 1872). Lynne (Long, 15180, 

 15180a, 15181). Fort Myers (Long, 15155-6). 



PHORADENDRON EATONI Trelease. 

 PTioradendron Eatoni Trelease in Small, Shrubs of Fla. p. 121. 1913. 



Not forked, the slender branches without cataphyls, dioecious. Inter- 

 nodes moderately long (1-3x15-30 mm.), glabrescent. Leaves oblanceo- 

 late-elliptical, very obtuse, 1-1.5x2.5-4 or 5 cm. Spikes solitary, short 

 (5-10 or 15 mm.), minutely velvety, with 2 or 3 rounded or shortly 



