FLORA OF VERMONT 71 



APOCYNACEAE. DOGBANE FAMILY 



APOCYNUM. D0313ANE 



A. androsaemifolium, L. Thickets and fields ; common. 



A. cannabinum, L. Indian Hemp. Moist banks ; occasional. 



A. cannabinum^ L. var. glaberrimum, DC. Shoresof Lake Charaplain. Sands 

 of West River, Eggleston. 



VINCA 



V. Mi.voR, L. Periwinkle. Persisting in neglected dooryards. 



ASCLEPIADACEAE. MILKWEED FAMILY 



ASCLEPIAS. :\llLK\VEED 



A, incarnata, L. Marshes ; common. 



A. obtusifoliat Michx. Sandy soil ; fref^nent about Burlington. 



A. phytolaccoides, Piirs^h. (A. exaltata, ]\Iuhl.) Moist copses ; occasional. 



A. quadrifolia, L. Rocky woods ; occasional. 



A. Syriaca, L. (A. Cornuti, Decaisne.) Rich grounds ; common. 



A. tuberosa, L. Butterfly Weed. Dry fields; Pownal." Rohbins ; "Bel- 

 lows Falls," Carey; Vernon, Grout: Manchester, .1/i.s.s' Da>/. 



VIXCETOXICUM. (CYNANCHUM) 

 V, NIGRUM, Moench. Brattleboro, Frost; Windsor, Leland. 



CONVOLVULACEAE. MORNING-GLORY FAMILY 



COXYOLYULUS. Bindweed 



C. ARVEXsis, L. A garden weed ; Woodstock, F. B. Dana. 



C. Japonicus, Thunb. The double-flowered form, an occasional escape 

 from cultivation. 



C. sepium, L. Moist thickets ; common. 



C. sepium, L. var. Americanus, Sims. Common in the gravelly soil along 

 shores of Lake Champlain. 



C. spithamaeus, L. Dry sandy plains ; common about Burlington. Nor- 

 wich and Rutland, EgglcMov. 



CUSCUTA. Dodder 

 C. Epithy.mum, Murr. In clover fields; threatening to become troublesome. 

 C. Gronovii, Willd. Moist thickets ; common. 



