1894.] PLANTS OF MONROE COUNTY. II3 



419. CALL A L. 



1019. C. palustris L. Wild Calla. 



Borders of marshes and sphagnum bogs ; infrequent. Genesee river, 

 near lake Ontario. Borders of marshes at Henrietta, Mendon, Hamlin, 

 and elsewhere. Wayne county. 



420. SVMPLOCARPUS Salisb. [Si'athyema Raf.] 



1020. S. foetid us Salisb. [Spathyema fcetida (L.) Raf.] Skunk Cabbage. 



Marshes and wet ground ; common. 



421. ACORUS L. 



102 1. A. Calamus L. Sweet Flag. 



Marshes ; common. 



LEMNACE/E. 



422. SPIRODELA Schleiden. 



1022. S. polyrhiza Schleiden. {Lemna polyrhiza L.) [Spirodela polyrhiza 

 (L.) Schleid.] 



Bays, ponds and marshes ; common. 



423. LEMNA L. Duck-weed. Duck's-meat. 



1023. L. trisulca L. 



Bays, ponds, marshes, etc. ; common. 



1024. L. minor L. 



Bays, ponds, pools, marshes, ditches ; abundant. 



424. WOLFFIA Horkel. 



1025. W. Columbiana Karsten. 



Abundant at Irondequoit bay and elsewhere. 



ALISMACEyE. 



425. ALISMA L. 



1026. A. Plantago L. {A. Plantago L.var. A ?nericanum Gray .) [A.Planlago- 

 aquatica L.] Water Plantain. 



Marshes, ditches, and borders of streams ; common. 



426. SAGITTARIA L. Arrow-head. 



1027. 5. variabilis Engelm. (incl. vars. obtusa, latifolia, diversifolia, angusti- 

 folia, and gracilis of Man. ed. 5). [S. latifolia Willd.] 



Aquatic or in wet places ; common. 



1028. S. heterophylla Pursh. [S. rigida Pursh, incl. var. elliptica Engelm.] 



Genesee river and elsewhere ; frequent. 



1029. S. heterophylla Pursh, var. elliptica Engelm. 



Frequent along the margin of Genesee river. 



NAIADACE.E. 



427. TRIGLOCHIN L. Arrow-grass. 



1030. T. palustris L. 



Abundant in Bergen swamp. 



is, Proc. Roch, Acad, of Sc, Vol. 3, April, 1896. 



