Development of the Vegetation of New York State 18 
PAGE 
Notable working units in bog vegetation.....................---.- 130 
(1) The characteristics and réle of Sphagnum................... 130 
(2) The characteristics and role of heath shrubs................. 131 
The development of vegetation upon a substratum subject to prevailing 
WELLER CLE Clivse paticicsts cosgcunn a isthe Areas He /opeis te ke Hest Nanaisne yt Mecuaee eee 132 
1-Ehe:course of vegetation on bare rock..:cr=.~.2...:......;..--- 135 
2. The development of vegetation upon sand...................... 141 
(1) A sand flat of the Oneida Lake basin..................... 142 
(2) “ The Plains” of the Upper Oswegatchie...... Shee Gurine 144 
(3) ethesbiatisburc sands barrens pe eee emcee cere cee 147 
(4) The Hudson—Mohawk pine barrens...................-..- 150 
(5) Sand beds of the Syracuse—Phoenix and Rochester districts.. 150 
(6) The sand beds of the Adirondacks......................- 151 
General relations of the sand barren vegetation.......... 154 
The resemblance between heath-bog and pine barren vegetation. ...... 156 
General survey of xerophytic succession in New York................ 158 
The development of mesophytic vegetation.......................5- 159 
(CULTTIT eS WYGTEPELI OG) eligfern o evetnta Boe Gea unid colle o means Um ole aeeae oe SAS Eine 163 
ie Review of development in the large. 7.2. .5..4..2.2.9:52254.-05-% 165 
Dreneviewsor development inidetaile as sase ee ges eee eee 167 
Characteristics of a climax forest society..................:.. 1€8 
Gi)Asitosthe soil, jotting as eons Te eae 168 
(QeAstiotorowthyronmse ss: ere ais tre es a are yee 170 
(SO) eAsitorowthirelahions-qs- ape ares ciaeia eerie ee 170 
The status of New York vegetation under cultural conditions........... 173 
eebrermmilllandsiof thesAllezhanysblateauls: .4)20-) 426 ss ee wee 179 
Peliesnirhlands(olethevudson eben eel aee ae rae eee eee eee 179 
3. Lumbered and burned-over lands of the Adirondacks.............. 181 
