72 College of Forestry 
Among small, herbaceous species: 
White dog-tooth violet —=(Hrythronium albidum Nutt.). 
Lizards tail —=(Saururus cernuus L.). 
Lotus (American) or 
Water chinquapin (Nelumbo lutea (Pers.) Willd.). 
Golden-seal —=(Hydrastis canadensis L.). 
Wild sensitive-plant —=(Chamaescrista (Cassia) nictitans (L.) 
Moench.). 
Partridge-pea —=(Chamaecrista (Cassia) fasciculata 
(Mx) Greene). 
Shooting-star =(Dodecathion Meadia L.). 
Virginia-cowslip. Blue- 
bells =(Mertensia virginica (L.) DC.). 
In addition to the above, certain other austral groups e. g. 
Smilax, legumes, composites (southwestern species especially 
in the Erie-Ontario basins), certain grasses, e. g., Paspalums, 
represented rather strongly in this zone disappear, or are 
sparsely represented in Zone C. 
The list could be much enlarged and, of course, more ac- 
curately determined. 
New York Distrisurion: Morainic region of Long 
Island and Staten Island; Hudson Valley region and adja- 
cent highlands (Westchester hills, Highlands of the Hudson, 
Lower Catskills (especially dissected channels, e.g., Kaaters- 
kill clove, becoming “thinned out” by disappearance of 
many species (chestnut stops below Lake Champlain, red oak, 
white oak, shell-bark hickory, red cedar and some others ex: 
tend up the Champlain valley to the St. Lawrence); the 
Delaware, Susquehanna and Alleghany drainage valleys; 
across the Alleghany plateau in Finger Lake valleys; up the 
Mohawk valley (especially south exposures) and notably 
strongly developed in the narrow Erie belt and the broader 
Ontario-Iroquois basin (notable occurrence of chestnut on 
sandy soils) to the Oneida Lake region; northward “ thin- 
ning out” (by disappearance of chestnut, tulip tree, certain 
oaks and hickories and most of the secondary austral woody 
species) toward the St. Lawrence valley. 
Low elevations to more or less 1200 feet southward and in 
territory under maritime and especially lake influence. 
