PLANTS OP ONONDAGA COUNTY 59 



LEMNACE/E— Dumart, 1827— Duckweed Family. 



SPIRODELA— Lin., 1753. 



S. POLYRHIZA — Schleid, 1839. (Lemna Polyrhiza — Lin. 

 1753.) Greater Duckweed. 

 Common in ponds. Seldom found in flower. 



LEMNA— Lin., 1753. 



L. TRISULCA — Lin., 1753. Ivy Leaved Duckweed; Star 

 Duckweed. 

 Common. Pools and stagnant waters. Pond on Dr. 

 Hoyt's Farm, July, 1885. 



L. MINOR — Lin., VGEC. Lesser Duckweed. 



Common in stagnant waters. North of Salina, 1885. 



WOLFFIA— Horkel, 1839. 



W. COLUMRIANA — Karst, 1865. Columbia Wolffia. 



Floating yet slightly emersed. Very small. Tully, 

 July, 1885. 



W. Braziliensis — Nedd, 1849. Brazil Wolffia. 



Floating. Cellular, with brown spots. Apulia Pond, 

 1885. Both difficult to collect. 



XYRIDACE/E— Lindl. 1 836 —Yellow-eyed Grass Family. 



XYRIS— Lin., 1753. 



X. flexuosa — Muhl, 1813. Slender Yellow-eyed Grass. 

 Frequent in swamps and banks of streams. Ind. Res., 

 1895. 



X. MONTANA — H. Ries, 1892. Northern Yellow-eyed 

 Grass. 

 Rare. Swamp on Wells Farm, Onon. Hill, Aug., 1900. 



ERIOCAULACE/E— Lindl, 1847— Pipewort Fam. 

 ERIOCAULUM— Lin., 1753. 



E. SEPTANGULARE — Wilh, 1776. Seven-angled Pipewort. 

 Rare. On shores partially submerged. Small clump of 

 land in Tully Lake, 1895, and Long Pond. 



