FLORA OF VERMONT 71 



APOCYNACEAE. DOGBANE FAMILY 



APOCYNUM. Dosbane 



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



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



A. cannabinum, L. var. glaberrimum, DC. Shores of Lake Cham plain. Sands 

 of West River, Eggleston. 



VINCA 



V. minor, L. Periwinkle. Persisting in neglected dooryards. 



ASCLEPIADACEAE. MILKWEED FAMILY 



ASCLEPIAS. Milkweed 

 i 



A. incarnata, L. Marshes ; common. 



A. obtusifolia, Michx. Sandy soil ; frequent about Burlington. 



A. phytolaccoides, Pursh. (A. exaltata, Muhl.) 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." Robbins ; "Bel- 

 lows Falls," Carey; Vernon, Grout; Manchester, Miss Day. 



VINCETOXICUM. (CYNANCHUM) 

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



CONVOLVULACEAE. MORNING-GLORY FAMILY 



CONVOLVULUS. Bindweed 



C. arvensis, 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. Americanos, Sims. Common in the gravelly soil along 

 shores of Lake Champlain. 



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

 wich and Rutland, Eggleston. 



CUSCUTA. Dodder 

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

 C. Gronovii, Willd. Moist thickets ; common. 



