I 894-] PLANTS OF MONROE COUNTY. II3 



419. CALL A L. 



loiQ. 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. SYMPLOCARPUS Salisb. [Siathyema Raf.] 



1020. S. foetidus Salisb. {SpathyonaffEtida (L.) Raf.] Skunk Cabbage. 



Marshes and wet ground ; common. 



421. ACORUS L. 



1021. A. Calamus L. Sweet Flag. 



Marshes; common. 



LEMNACE^. 



422. SPIRODELA Schleiden. 



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

 (L.) Schleid.l 



Bays, ponds and marshes ; common . 



423. I^EMNA L. Duck-weed. Duck's-meat. 



1023. L. trisuica L. 



Bays, ponds, marshes, etc. ; common. 



1024. L. minor L. 



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



424. irOLFFIA Horkel. 



1025. W.Columbiana Karsten. 



Abundant at Irondequoit bay and elsewhere. 



ALISMACE^. 



425. ALfSMA L. 



1026. A. Plantago L. [A. Plantago L.wdir. Americanum Gra.y.) {^A.Plantago- 

 aquatica L.] Water Plantain. 



Marshes, ditches, and borders of streams ; common. 



426. SAGITTARIA L. Arrow-head. 



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

 folia, and gracilis of Man. ed. 5). [6". latifolia Willd.] 



Aquatic or in wet places ; common. 



1028. S. heterophylla Pursh. [5. rigida Pursh, incl. var. ^//z/Z/^a Engelm.] 



Genesee river and elsewhere ; frequent. 

 I02g. S. heterophylla Pursh, var. elliptica Engelm. 

 Frequent along the margin of Genesee river. 



NAIADACE^. 



427. TRIGLOCHIN L. Arrow-grass. 



1030. T. palustris L. 



Abundant in Bergen swamp. 



15, Proc. Roch. Acad, of Sc, Vol. 3, April, i8g6. 



