94 PENNELL: PLANTS OF THE SOUTHERN UNITED STATES 
About Wilmington, North Carolina, he was in yet another district 
of unusual interest, in aspect recalling the open grassy pine-lands 
further south. 
In 1913, from August 22 to October 20, the writer was again 
in the field, traversing districts inland from, or west of, those 
visited the year before. In the Mississippi Valley collections 
were made in Indiana, Illinois, Missouri, especially in the eastern 
(Cambrian) Ozark region, Arkansas and Oklahoma. Most of 
September was spent in Texas, through the Black Belt, in the 
Edwards Plateau northwest of New Braunfels and at Boerne, in 
the coastal plain eastward from Cuero and Victoria to Rosenberg, 
and in the pine-land of the southeast. Late September and early 
October he was in the pine-land of western Louisiana, in Arkansas, 
in the mountains of northeastern Alabama and eastern Tennessee, 
and about Stone Mountain, Georgia. Detailed itineraries of the 
routes of both seasons will be published in the writer’s ‘A galints 
and Allies in North America.’’* 
All specimens collected by the writer, unless otherwise specified, 
are in the herbarium of the University of Pennsylvania. Some 
of these are represented by duplicates in the herbarium of the 
New York Botanical Garden, and in other herbaria. In the 
following lists numbers cited in parentheses are those of the writer's 
collecting. For groups critically studied specimens are cited from 
various herbaria indicated by letters as follows: 
Academy of Natural Sciences, Philadelphia...................00005 (A.) 
Biltmore Herbarium, Biltmore, North Carolina.................++: (B.) 
maianenn inanicel Garden, St Lone rt as (M.) 
University of Pennsylvania, Philadelphia...................0..0002 (P.) 
United States National Museum, Washington....................+- (U.) 
New York Botanical Garden, New York City............00.ccceees (¥.) 
To the custodians of all the above herbaria the writer is 
indebted. In an especial degree he must acknowledge the kind- 
ness of Dr. John M. Macfarlane, of the University of Pennsylvania, 
whose interest made possible the collecting of the specimens 
recorded as well as much of the opportunity for their study. This — 
study has been conducted at the University of Pennsylvania and 
at the New York Botanical Garden. 
é ——_ 
*It is expected that this paper will soon = cel in the Contributions of the 
Botanical Laboratory of the University of Pennsylvani 
eae 
