CONTEXTS 



PAGE 



Lowland Forests Mil 



Gum-Pine Association 161 



Oak-Gum Association L62 



River Swamps 162 



Cypress Swamps 165 



Succession 166 



Reforestation 170 



Marshes 171 



Fresh Marshes 171 



Potamogeton Zone 171 



Nymphaea Zone 172 



Pontederia Zone 172 



Zizania Zone 172 



Typha Zone 173 



Alder Zone 173 



Maple Zone 17a 



Salt Marshes 175 



Spartinia stricta Association 177 



Spartinia polystachya Association 178 



Scirpus olneyi Association 178 



Distichlis Association 179 



Iva-Baccharis-Panicum Association 179 



Typha Association 180 



Transition Areas 1S2 



Reclamation 184 



Peat Bogs 185 



Strand 186 



Plants ot Cultivated Ground 189 



Roadside Vegetation ISO 



Ruderal Vegetation 191 



Weeds 192 



Burned Areas 193 



Relation of Vegetation to Soil 193 



THE ECOLOGICAL PLANT GEOGRAPHY OF MARYLAND, MID- 

 LAND ZONE. LOWER MIDLAND DISTRICT. By Fork 

 Siireve 199 



Introductory 1 99 



Vegetation of the Loam 202 



Topland 202 



Soil-covered Slopes 207 



Rocky Slopes 209 



Flood Plains 21 



