Flora of the Allegany State Park Region 49 



LEMNACEAE (Duckweed Family) 



Lemna minor L. Smaller Duckweed 



Floating on quiet water of pools, marshes and 

 ditches. Common in the Allegheny and Tunungwant 

 valleys, pond on Pine hill and elsewhere. In the 

 park area proper suitahle habitats for this plant are 

 very rare. 



Spirodela polyrhiza (L.) Schleid. Greater Duckweed 

 Floating on the quiet waters of pools and back- 

 waters in the Tunungwant and Allegheny valleys. 

 Frequent. Near Cold Spring, Limestone etc. 



JUNCACEAE (Rush Family) 

 Juncus effusus L. Soft or Bog Rush 



In wet soil on the borders of marshes, low 

 meadows and ditches. Common except in the higher 

 portions of the park (varieties solutus Fernald & 

 Wiegand and Pylaei (Laharpe) Fernald & Wiegand, 

 only). 

 Juncus bufonius L. Toad Rush 



In silty or muddy ditches and borders of pools. 

 Infrequent. Roadside between Quaker Bridge and 

 Steamburg, roadside between Elkdale and Salamanca 

 Rock City, doubtless elsewhere. 

 Juncus tenuis Willd. Slender Rush 



Very common in paths, along roadsides, fields, low 

 meadows and open woodlands in all kinds of soil. 

 Var. anthelatus Wiegand, in open places on the 

 conglomerate soil along the higher ridges. Var. Wil- 

 liamsii Fernald. is also frequent. 

 Juncus articulatus L. Jointed Rush 



In wet soil. Infrequent in the valleys of the park 

 area. More abundant in the Allegheny valley and 

 on the glaciated region northward. 



