82 Bulletin 1, Biological Bociety of Washington^ 1918. 



As implied in preliminary remarks on the Magnolia bogs, 

 those of the Powdermill group, by no means harbor the whole 

 suite of plant species known from the bogs. It is not perti- 

 nent to the present discussion to attempt to list the whole 

 flora of the bogs, but it is sought to include in the following 

 itemization all of the plants of the local Magnolia bogs that 

 are named in the list given by Stone (op. cit., pp. 77-78) of 

 characteristic Pine Barren species. 



CHARACTERISTIC PINE BARREN PLANTS KNOWN FROM 

 MAGNOLIA BOGS IN THE VICINITY OF WASHINGTON.^' 



Dryopteris simulata 

 Lycopodium adpressum 



carolinianum 

 Sparganium americanum 

 Erianthus saccharoides 



Panicum longifolium 



ensifolium 



Glutei 

 Panicum lucidum 



columbianum thinium 

 Eleocharis tuberculosa 

 Rhynchospora alba 



axillaris 



gracilenta 

 Scleria triglomerata 



torreyana 

 Carex bullata 



Xyris caroliniana 

 Eriocaulon decangulare 

 Juncus aristulatus 



Hollywood, Suitland. 



Ammendale, Hyattsville, Deanewood, 



Kenilworth, Magruder, Lanham, Ac- 



cotink. 



Magnolia Run. 



Terra Cotta, Holmead, 



Brightwood. 

 Hyattsville, Kenilworth. 



Kenilworth, 



Hyattsville, Kenilworth. 



Riverdale, Lanham, Laurel. 



Magnolia Run, Takoma, Brookland. 



Takoma. 



Howard Hill, Brightwood, Holmead. 



Brightwood, Holmead, Magnolia Run. 



Hyattsville. 



Hollywood, Brookland, Holmead. 



Reform School, Kenilworth, Terra 



Cotta. 

 Brightwood, Kenilworth. 

 Hyattsville, Reform School, Sarra- 



cenia, Brightwood 

 Savage, Hyattsville. 

 Brightwood, Holmead, Takoma. 

 Kenilworth. 



^° Names of bogs in which species are known to occur are cited by way 

 of authentication, but no effort has been made to give complete particulars 

 in this respect. Occurrences in the Powdermill bogs are not given a 

 second mention. 



