1894-] PLANTS OF MONROE COUNTY. 85 



626. F. viridis Michx.f. \F. lanceolata Borck.] Green Ash. 



Rare. Low ground, Brighton. 



627. F. sambucifolia Lam. [F. ?iigra Marsh.] Black Ash. 



Low woods and swamps ; common. 



250. LIGUSTRUM Tourn. [L.] 



628. L. vulgaris L. Privet. Escaped. Infrequent. 



APOCYNACE^E. 



251. VINCA L. 



629. V. minor L. Periwinkle. Creeping Myrtle. Escaped. Frequent. 



252. APOCYNUM Tourn. [L.] 



630. A. androssemifolium L. Dog-bane. 



Banks of streams, borders of woods ; common. 



631. A. cannabinum L. Indian Hemp. 



Low grounds and shores ; common. 



ASCLEPIADACE^. 



25 3. ASCLEPIAS L. 



632. A. tuberosa L. Butterfly-weed. Pleurisy-root. 



Dry fields and banks; frequent. Common in the sandy soils of 

 Greece and Irondequoit. 



633. A. incarnata L. Swamp Milkweed. 



Low grounds and shores ; common. 



634. A. Cornuti Decaisne. [A. Syriaca L.] Common Milkweed. 



Fields and roadsides ; common. 



635. A. phytolaccoides Pursh. [A. exaltata (L.) Muhl.] Poke Milkweed. 



Woods and shores ; frequent. 



636. A. quadrifolia L. [A . quadrifolia Jacq.] Four leaved Milkweed. 



Dry woods, ravines, and slopes ; common. 



637. A. verticillata L. Whorled-leaved Milkweed. 



Rare. Near Rochester, Dr. C. M. Booth. Penfield, L. Holzer. 

 Perinton, Miss Mary E . Macau ley. Mrs . Mary E . Streeter. 



254. VINCETOXICUM Mcench. [Cynanchum L.] 



638. V. nigrum Mcench. [Synanckum nigrum (L.) Pers.] 



Rare. Pinnacle hills, Rochester. Wayne county. 



PERI PL OCA L. 



— P. GRjECA L . Naturalized near Rochester, Sartwell in Herb. Ha?n. Coll. 



GENTIANACEyE. 



255 GENTIAN A Tourn. [L.] 



639. Q crinita Frcel. Fringed Gentian. 



Wet places ; frequent. 



640. G. serrata Gunner. [G . detonsa Man.) 



Rare. Bluffs along Lake Ontario in the town of Irondequoit, Paine. 



