Tennessee Flora. 69 



sides. Slopes of the Cumberland Mts. Bark gathered for 

 tanning. May, June. Acorns ripe in October, November. 



Q. acuminata (Michx.) Sarg. Q. Mlihlenbergii Engelm. 

 Dry or damp limestone soil. Frequent in Davidson County. 

 May, June. Acorns ripe in October, November. Edible. 



*Q. Boyntoni C. D. Beadle, n. sp. Common on Lookout 

 Mt., near Gadsclen, Ala. , It very probably extends also on the 

 Tennessee extension of Lookout Mt. 



ULMACE^ Mirbel. 

 ULMUS L. 



Ulmus Americana L. White elm. A robust tree, attain- 

 ing a height of 120 feet and 11 feet diameter. In rich and 

 moist soil. O. S. March, April. Samaras maturing in May. 



U. racemosa Thomas. Rock elm. Grows to a height of 

 100 feet'by 4 feet diameter. In rich soil. Nashville. 



U. alata Michx. Winged elm. Wahoo. A small tree. 

 Very frequent in the glades of M. Tenn. March. Samaras 

 ripe in April. 



U. fulva Michx. Slippery elm. Tree attaining 70 feet by 

 2^ feet diameter. Hillsides and along streams. Bark mucil- 

 aginous, fragrant in drying. March, April. Fruit matures 

 in April, May. M. 



fU. serotina Sargent. Discovered in 1878 near grounds of 

 Vanderbilt University. Flowering in October. 



PLANERA J. F. Gmelin; 



Planera aquatica (Walt.) J. T. Gmelin. Planer tree. A 

 small tree 40 feet high. Alon^ water courses and in swamps. 

 W. Tenn. Bridgeport. April, May. 



*Q. Boyntoul C. p. BnadJe. Shrub 1-5 m. tall, usually growing 

 in large clumps, or a small- tree, with short trunk less than 1 dm. in 

 diameter; leaves, obovate in outline, 5-9 cm. long, 1.5-4 cm. broad, 

 with from three to Ave small, obtuse lobes above the middle, cuneate 

 from the lower lobes to the base, glabrous above, tomentose beneath; 

 acorns, sessile or short pedunculate; nut, oval or obovoid, 12 mm. high, 

 9-10 wide; cup, turbinate, Inclosing less than one-half of the nut. 



tU. serotina Sargent. Tree 40 to 50 feet high, 2 to 3 feet diame- 

 ter of trunk, with close, pale-gray bark; leaves, oblong to oblong obo- 

 vate, acuminate, variously oblique at the base, coarsely and doubly 

 crenulate-serrate, membranaceous, glabrous and lustrous above, pub- 

 erulous below on the prominent midribs and veins; flowers, perfect, 

 autumnal, racemose, from buds in the axils of the .leaves of the year, 

 long-pedicellate; calyx, six-parted at the base, its divisions oblong- 

 obovate, rounded at the apex; ovary, sessile, narrowed below, hirsute; 

 samaras stipitate, oblong elliptical, deeply two-parted at the apex, cil- 

 iate on the margin; seeds, obovate, raphe conspicuous; young leaves, 

 stipules and bracts unknown. (Botanical Gazette, February, 1899.) 



