MARYLAND WEATHER SERVICE 137 



Their outer margins are of the Spartina stricta type or of the Scirpus 

 olneyi type. Within, they are of a character intermediate between 

 Fresh Marshes and Bogs, but somewhat, drier than either. These 

 areas lie above the reach of tides, the soil is a coarse sand, never 

 saturated but always moist, the vegetation is sparse and open and 

 at a few places near the upland seedlings of Loblolly Pine are gain- 

 ing a foothold. These '"heaths" would appear to have come about 

 through the building up of bogs, such as have been described for the 

 vicinity of Greenbackville, by sand from the upland transported by 

 surface drainage. They are traversed by slow streams and have 

 more moist sections resembling the ordinary Fresh Marshes and 

 drier sections resembling bogs. Characteristic of the moist parts 

 are: 



Scirpus rdbustus 

 Fimbristylis castanea 

 i u'rardia maritima 

 Oyperus nuttallii 

 Asclepias pulchra 

 Juncus canadensis 

 Sabbatia stellaris 

 Eryngium virginiainim 

 Hydrocotyle ranun culo idi s 

 Ilydrocotyle canbyi. 



Characteristic of the drier parts are: 



Lobelia nuttallii 

 Linum medium 

 Drosera intermedia 

 Euthamia graminifolia 

 Strophe-styles Jielvola 

 Polygala mariana 

 Asclepias lanceolata 

 Cassia nictitans 

 Eupatorium hyssopifolw m 

 Sericocarpus lin ifolius 

 < 'entella asiatica 



