1918] SARGENT—TILIA 507 
and northwestern Arkansas (Eureka Springs, Carroll County, E. J. Palmer, 
September 21, 1913, no. 4412, Cotter, Marion County, September 1, 191s, 
no. 8405). Southward it ranges through eastern Kentucky and Tennessee 
to northeastern Mississippi, along the Appalachian Mountains and their 
foothills to northern Georgia and to southern Georgia and Dallas County, 
Alabama. I have not seen specimens of this linden from Illinois, although it 
may be expected to occur in ravines near the Ohio River in the southern part 
of the state. : 
TILIA HETEROPHYLLA var. nivea, n. var.—Differing from the 
type in the whiter tomentum on the lower surface of the leaves, the’ 
glabrous styles, in the tomentum on the lower side of the bract of 
the peduncle at the time the flowers open, the slightly pubescent 
gray or pale reddish brown branches, and in the puberulous winter- 
uds. 
FLorwwa.—In deep woods, River Junction, Gadsden County, T. G. Harbi- 
son, April 19 and June 25, 1917 (no. 29 type), June 7, 1915, and June 25, 1917 
(no. 27), A. H. Curtiss, June 4 and September 13, 1897 (no. 5875). 
TILIA HETEROPHYLLA var. amphiloba, n. var.—Difiering from 
the type in the fascicled hairs on the upper surface,of the young 
leaves and in the often pubescent branchlets. Leaves broadly 
- Ovate, sometimes broader than long, abruptly short-pointed or 
gradually narrowed and acuminate, or occasionally rounded at 
apex, symmetrically or obliquely cordate or obliquely truncate at 
base, finely serrate with apiculate teeth; when they unfold hoary 
tomentose below and covered above with fascicled hairs, and at 
maturity thin, dark yellow-green, smooth and Justrous on the upper 
surface, pale green or brownish and covered below with thick, white, 
somewhat loose tomentum, on lateral branchlets 4-6 cm. long and 
5-7 cm. wide, and on leading shoots 9-10 cm. long and 7-8 cm. 
wide, the midrib and primary veins covered below with fascicled 
hairs; axillary hairs rusty brown in small inconspicuous tufts, 
often wanting; petioles slender, sparingly pubescent when they 
first appear, becoming glabrous, 2-2.5 cm. in length. Flowers 
4-5 mm. long, on stout tomentose pedicels, in broad, thin-branched, 
slightly pubescent, 7—25-flowered corymbs; peduncle slender, 
pubescent, the free portion 3-5 cm. in length, the bract oblong to 
oblong-obovate, cuneate at base, rounded at apex, short-stalked 
