136 THE I'l.ANT LIFE OF MARYLAND 



accompaniment of species sncli as are also found in the Fresh 

 Marshes of the rivers, as: Scirpus lacustris, Asclepias pulchra, 

 Sium cicutae folium, Hibiscus moscheutos, Bidens trichospenna var. 

 lenuiloba, Ptilimnium capillaceum, Lysimachia ter rest ris. 



In the vicinity of Greenhackville, Worcester County, the Salt 

 Marshes of Spartina stricta var. maritima, and Spartina patens form 

 the outer margin of the marshland. Following up any of the nu- 

 merous small streams which flow off the upland in this locality 

 there is a rapid transition to Fresh Marsh (See Plate VI, Fig. 2), in 

 which Scirpus olneyi is often the only conspicuous plant, or in which 

 Scirpus olneyi, Scirpus americanus, Scirpus robustus and Typha 

 angustifolia are intermingled or occur in groups. The species which 

 are of subordinate importance in these Marshes are partly of the 

 same stature as the species mentioned, as Lythrum lineare, Eryn- 

 gium virgiiiianum, and Kosteletzhya virginica. Of smaller stature 

 and frequent occurrence are Stimulus floribundus, Ilydrocolyle um- 

 bellata, and Sabbatia dodecemdra. On passing toward the upland 

 the Marsh merges rapidly into a sandy bog, suggesting the inner 

 sandy areas of the river marshes but much more pronouncedly unlike 

 the Fresh Marshes themselves. There arc scattered clumps of Ainu* 

 rugosa with herbaceous vegetation comprising: 



Drosera internu dia 

 Rynchospora alba 

 Eynchospora glonu rata 



Triadenum virgin! cum 

 Fuirena squarrosa var. liispida 

 Hypericum nvutilum 

 Rhexia mariana 

 Xyris communis 

 Triglochin striata 

 Lycopodium in an da I am 

 A' / i/ngium Virginian u m 

 Nymphaea advena 

 Utricularia juncca. 



The Fresh Marshes in the vicinity of Ocean City and Turville 

 Creek arc much richer in species than those near Greenhackville. 



