of Mississippi and Louisiana 91 



JUNCACEAE 



fjunnts marginatus biflorus Wood. Common on Ship and Cat 



Islands. 



\J. scirpoides Lam. Ship, Cat and Breton Islands. 



Liliaceae 

 Yucca gloriosa L. Abundant on sand hills, Breton Island. 



Smilaceae 



Smilax auriculata Walt. Breton Island. 



*S. Bona-nox L. Common on dry, sandy beaches above tide 



line. 



Myricaceae 



* iMyrica cerifcra L. Common on all islands producing 

 shrubs, often forming dense thickets on the borders of marshes, 

 He a Pitre, Cat and Breton Islands. 



Salicacea 



Populus deltoides Marsh. Occasional on newly-made ground 

 from South Pass to the jetties. 



Salix nigra Marsh. Very abundant from South Pass to the 

 jetties. The wood of this species is used almost exclusively in 

 making the mattresses to form the jetties and the young trees are 

 among the first to take possession of the newly-formed banks. 



Fagaceae 

 Quercus geminata Small. The common oak of Ship and Cat 



Islands. 



Q. Virginiana Mill. Occasional on the islands, and the com- 



mon form on the mainland. 



Moraceae 



Eads. 



Toxybn pomiferum Raf. A single tree on ballast ground, Port 



Polygon ace a e 



Polygo?iella gracilis Meisn. Occasional on sandy knolls, Ship 

 a nd Cat Islands. 



Polygonum Morale Link. On shell beaches, He a Pitre and 

 Battledore Island. 



