HARPER: PINE-BARREN VEGETATION OF MissIssipP1 561 
9 Osmunda cinnamomea Non-alluvial swamps, etc. 
8 Hibiscus aculeatus Low pine-barrens 
7 Sabbatia angularis Low pine-barrens 
7 Scleria Baldwinii Cypress ponds, etc 
7 Panicum dichotomum? Low pine-barrens 
7 Xyris sp. Low pine-barrens 
6 Rhexia lutea Low pine-barrens 
6 Aristida stricta Dry pine-barrens mostly 
6 Chrysopsis graminifolia Dry pine-barrens mostly 
6 Sagittaria lancifolia Estuarine marshes 
6 Polygala cruciata Low pine-barrens 
5 Afzelia cassioides Low pine-barrens 
5 Cyperus pseudovegetus Ditches, etc 
5 Ludwigia pilosa Ponds and ditches 
5 Rhynchospora corniculata Shallow ponds, etc. 
5 Baldwinia uniflora Low pine-barrens 
5 Habenaria nivea Low pine-barrens 
5 Linum floridanum Low pine-barrens 
5 Spartina polystachya Brackish marshes 
4 Leptilon canadense A weed 
4 Sarracenia psittacina Low pine-barrens 
A ynchospora semiplumosa Low pine-barrens 
4 itn, angustifolius Low pine-barrens 
4 Trilisa odoratissima Low pine-barrens 
4 Rhynchospora axillaris Low pine-barrens 
4 Saururus cernu Swamps 
4 Carphephorus Pseudo-Liatris Low pine-barrens 
4 Lycopodium ae Low pine-barrens 
4 Rynchospora Baldwini Low pine-barrens 
4 Xyris flexuosa* Low pine-barrens 
If we add together the figures for evergreens we find that 
55-3 per cent. of the trees (six conifers and seven angiosperms) and 
68.4 per cent. of the shrubs (counting Cyrilla as half evergreen) 
are evergreen. Of course a great deal of the most abundant 
tree, Pinus palustris, has been cut for lumber, much more pro- 
portionately than the cypress and hardwoods, which makes the 
Percentage of evergreens lower than it would be for virgin forests. 
If a careful analysis of the forests of this region could have been 
made half a century ago the proportion of evergreens would 
Probably have been found to be something like 75 per cent. This 
is in striking contrast with the northern half of the state, where 
the soils are more clayey and (therefore?) richer in potash, and 
where no natural region seems to have more than 20 per cent. 
of its trees evergreen.} 
* X. torta of most nineteenth-century authors. See Torreya §:129. 1905. 
t See Bull. Torrey Club 40: 395-396. 1913. 
