ECOLOGICAL STUDY OF BRUSH LAKE. 



159 



The plants in the zone are as follows : 



HOMOSPOROUS PTERIDOPHYTES. 



Equisetum fluviatile L. 



Cyperus strigosus L. 

 Eleocharis palustris (L.) R. & S. 

 " palustris glaucescens 



[(Willd.) Gr. 

 acicularis (L.) R. & S. 

 Scirpus fluviatilis (Torr. ) Gr. 

 " atrovirens Muhl. 

 " lineatus Mx. 

 Carex albolutescens Schwein. (?). 

 " comosa Boott. 

 " cristatella Britt. 



Dryopteris thelypteris (L. ) Gr. 



Sedges. 



Carex frankii Kunth. 

 " granulans Muhl. 

 " hystricina Muhl. 

 " lanuginosa Mx. 

 " shortiana Dew. 

 " stipata Muhl. 

 ' ' stricta Law. 

 " stramiuea ferruginea Bail. 



[(C. alata ferruginea Fern.) 

 " vulpinoidea Mx. 



Echinochloa crus-galli (L.) Beauv. 

 Panicum capillare L. 



Other Monocotyls 



Grasses. 



Panicularia nervata (Willd.) Ktz. 



Sparganium eurycarpum Engel. 

 Spathyema foetida (L) Raf. 



Juncus tenuis Wild. 

 " torreyi Cav. 



Herbaceous Dicotyls. 



Batrachium divaricatum (Schr. ) 



[Wimm. 

 Caltha palustris L. 

 Cardamine bulbosa (Schreb.) B. S. P. 



pennsylvanica Muhl. 

 Roripa palustris (L.) Bess. 

 Penthorum sedoides L. 

 Geum virginianum L. 

 Naumbergia thyrsiflora (L.) Duby. 

 Asclepias incarnata L. 

 Lycopus americana Muhl. 



Mentha canadensis L. 

 Mimulus ringens L . 

 Pedicularis lanceolata Mx. 

 Angelica atropurpurea L. 

 Galium claytoni Mx. 



" tinctorium L. 



" asprellum Mx. 

 Valerianella radiata (L 

 Lobelia syphilitica L. 

 Aster puniceus L. 

 Senecio aureus L. 



Dufr. 



Shrubs. 

 Cephalanthus occidentalis L. 



6. Shrub Zone. This is a Salix-Cephalaiithus-Cornus- 

 Rosa zone. It is almost continuous around the lake except at 

 the south side where it is poorly developed, forming only a nar- 

 row, interrupted belt between the forest and water. At the 

 north end the zone is 30 feet wide. Here abound some of our 



