1918] SARGENT—TILIA 495 
and acuminate at apex, rarely 5-angled, covered with rusty or pale 
pubescence, usually 8-10 cm. in diameter. 
A tree 25~30 m. high, with a trunk sometimes 1 m. in diameter, smooth, 
often pendulous, branches forming a broad round head, and slender glabrous 
branchlets. Winter-buds ovoid, rounded at narrowed apex, about 5 mm. long, 
with glabrous, red-brown or light brown scales. Bark of the trunk about 
2.5 cm. thick, deeply furrowed, pale reddish brown and covered with small 
thin scales. Flowers at the north in July and southward about a month 
earlier. Fruit ripens in September. 
Rich moist soil, Province of Quebec, near Montreal, to the coast of Massa- 
chusetts and New York, through the middle states to the valley of the Poto- 
mac River and along the Appalachian Mountains to those of North Carolina, 
and to Iuka, Tishimingo County, Mississippi, and from central and western 
New York to northern and southwestern Missouri (B. F. Bush, Noel, May 27 
and October 8, 1909, nos. 5765, 59083; E. J. Palmer, Elk Springs, McDonald 
County, no. 4285; limestone cliffs, Current River, Van Buren County, July 4, 
1914, no. 6180). 
Although I have not seen a type specimen of Spacn’s T. neglecta, his 
description can only refer to this tree, which seems to have been understood 
only by Spacu, whose description was made from trees cultivated in France. 
The younger Micuavux must have seen it in western New York, where he found 
what he called T. americana between Batavia and New Amsterdam forming 
two-thirds of the forest growth. In western New York, however, T. neglecta 
is a much more common tree than T. glabra. Gray, too, must have been 
familiar with T. neglecta, for it is common in central New York where as a 
young man he did most of his field work, and in his descriptions of T. americana 
he always says “essentially glabrous,” which would indicate that it might not 
be always glabrous. It was mistaken for T. glabra by Curtis as it seems to 
replace that species south of Maryland. Specimens of a tree of T. neglecta 
growing near Wading River, Long Island, have been referred by many authors 
to T. pubescens Aiton, and other authors have followed me in considering the 
tree which I now consider 7. neglecta to have been the T. Michauxii of NUTTALL, 
which is the T. argentea of MIcHAUX. 
In the shape and serration of the leaves and in the size and structure of the 
flowers and fruit there is little by which 7. neglecta can be distinguished from 
T. glabra, but as the absence or presence of pubescence or tomentum on Ameri- 
can species of Tilia is so important in distinguishing species, and as the pubes- 
cence on the lower surface of the leaves of 7. neglecta is so constant and so 
Persistent throughout the season, it seems best to consider it a species rather 
than a pubescent form of T. glabra. The base of the style of 7. neglecta is 
furnished with long hairs and that of 7. glabra appears to be quite glabrous. 
I find a slight pubescence on a branchlet from the upper part of a tree collected 
by Curtis and Corr near Ithaca, New York. Space describes the fruit of 
