BOREALES—FLAVESCENTES 35 
oblong joints 6- to 12- or even 30-flowered when staminate: peduncle 1-2 
mm. long: scales minutely velvety. Pistillate flowers and fruit?.— 
Plate 28. 
South Atlantic region (? exclusively) on Fraxinus.—The type from 
Florida. 
Specimens examined: UNITED STATES. Forma. Deep Lake, Lee 
Со. (Alvah A. Eaton, 1310, Mar. 1905, the type). Hancock Creek 
(Harshberger, 1912). 
^ Phoradendron Engelmanni n. nom. 
Phoradendron flavescens pubescens Engelmann, Boston Journ. Nat. Hist. 
vol. 6. p. 212. 1850. 
Р. flavescens Stevens & Hall, Diseases of Econ. РІ, f. 187. 
Not forked, the moderate branches without eataphyls, dioecious. Іп- 
ternodes rather short (2-5x20-40 mm.), subcanescently tomentose like 
the foliage. Leaves obovate to oblanceolate, very obtuse, 1.5-2.5x3-5 em., 
euneately subpetioled for about 5mm. Spikes mostly solitary, moderate 
(15-20 mm., lengthening to 30-40 mm. in fruit), canescent, with some 
4 or 5 joints rather clavately 6- to 12-flowered when pistillate or oblong 
and 20- to 30-flowered when staminate: pedunele 2-3 mm. long: seales 
tomentose. Fruit white, subglobose, glabrous, about 5 mm. in diameter, 
in rather close whorls: sepals nearly or quite glabrous, closely inflexed.— 
Plates 5, 29, 30, 31. 
East Texan region, on Celtis, Maclura, Quercus, Ulmus and, very eon- 
spieuously, Prosopis.*— The type from Texas. 
Specimens examined :—UNITED STATES. Texas. Vicinity of New 
Braunfels (Lindheimer, 406, 1846—the type; 115, 1120, 227, 1121, 1849; 
445, 1122, 1850). Comancheries ( Berlandier, 678, 2088, ‚ 1828). Bexar 
бу. (Jermy, 1904). San Antonio (Ferriss). ~ Gillespie Co. (Je ғту). 
Nolan Co. (Broadhead, 1887). Lampasas Со. (Joor). Melissa (Pammel, 
1888). Dallas Co. (Reverchon, 837). Austin (Heald, 1909, 1911; Long, 
15103; Hedgcock, 422, 427 ). Mitchell Co. (Holstein). West Texas 
(Soulard, 1882). Davis Mts. (Tracy d Earle, 188). Fayette Co. (Mat- 
thes, 573). Mexico. CHIHUAHUA. Ciudad Juarez (Stearns, 1911). 
^ Phoradendron Engelmanni Claviger n. var. 
Differing from the type in its more elongated fruiting spikes (40-50 
mm.) with distinctly separated whorls of fruit.— Plates 5, 21. 
With the type, into whieh it probably merges, chiefly on Prosopis. — 
The type from Texas. 
*A list and analysis of host plants in Texas is given by Bray, Bull. Bur. Pl. Ind., 
U. S. Dep. Agr. No. 166. p. 22. 
