OF ARTS AND SCIENCES. 15 



Pontederiaceae 



Pontederia cordata L. Common 



A form with white flowers has persisted many 

 years in a pond in Manchester. ( W. H, ffuse.) 



Juncacese 



Juncus bufonius L. Common 



tennis Willd. Common 



Greenii Oakes and Tuckerm. Common 



filiformis Iy. Common ? 



effusus L. Common 



Canadensis J. Gay. Common 



pelocarpus Mey. Common 



acumiiiatus Michx. Common 



articulatus L. Common 



marginatus Rostk. Common 



Luzula campestris (Iy.) DC., 



var. inultiflora (Hhrh.) Celak. Common 



Liliacene 



Veratruni viride Ait. Common 



Oakesia sessilifolia (L.) Wats. Common 



Lilivim pliiladelphicuni L. Common 



canadense L. Common 



Erythronium aniericanuni Ker. Locally abundant 



Ornitliogalum unibellatuni Iy. A common escape 



Muscari botryoides (L.) Mill. A rare escape 



Asparagus officiiialis L. A common escape 



Cliiitoiiia borealis (Ait.) Raf. Common 



Smilaciiia racemosa (L.) Desf. Common 



stellata (Iy.) Desf. Common 



trifolia (Iy.) Desf. Concord. (Mrs. G. L. Green.) Rare? 



