212 HARPER: THE ‘‘PocosIN” OF PIKE County, ALA. 
SHRUBS AND VINES 
Batodendron arboreum Osmanthus americana 
Ceanothus americanus Chionanthus virginica 
Gaylussacia dumosa Gelsemium sempervirens 
Asimina parviflora 
HERBS 
Opuntia vulgaris Cracca virginiana 
Pteridium le Chrysopsis aspera? 
Afzelia pectin Coreopsis major Oemleri - 
Kuhnistera acl Tillandsia usneoides 
Solidago odora Sorghastrum ceed 
Stenophyllus ciliatifolius* Siphonychia 
Polypodium polypodioides Pitcheria alactoide 
s verna Astragalus osus* 
Triplasis americana* Warea soa 
Ionactis linariifolius 
LICHENS 
Cladonia sp. 
This vegetation, like that on typical sand-hills, is not very 
dense, as shown by one of the accompanying illustrations (FIG. 1). 
Apparently about one third of the woody plants (counting individ- 
uals, not species) are evergreen. 
The pocosin itself seems to center around the precipitous heads 
of a few small tributaries of Walnut Creek, but its vegetation, 
except in the bottoms of the ravines, is not at all of a swamp 
character, the statements of Thornton and Mohr to the contrary 
notwithstanding. Its soil was doubtless originally the same as 
that of the surrounding sandy country, but it is now covered and 
more or less mixed with a thin layer of humus, derived from the 
trees and protected from desiccation and oxidation by their shade, 
as in other dense forests the world over. In this forest there is a 
characteristic faint odor of sour humus (corresponding approxi- 
mately with the raw humus of Warming§ or more closely with the 
upland peat of Coville||), as in the mountains of North Carolina 
* These five species do not seem to have been found so far inland ta Alabama 
before. Three of them are Leguminosae. 
+ Apparently not area reported from Alabama. (See Ann. N. Y. Acad. 
Sci. 17: 300. 1906.) But in September, 1912, I found it in considerable abundance 
in the pine-barrens of Clans e, Monroe and Baldwin Counties. 
t Another addition to the Alabama flora, its previously known range being from 
South Carolina to Florida. 
§ of Plants, 62-63. 1909. 
| U. * ual Agr. Bur. Plant Industry Bull. 193: 32-34. F 1911; Jour. 
Wash. Acad. Sci. 3: 84-86. F 1913. 
