100 FLORA OF WASHINGTON AND VICINITY. 



tOnosmodium Virginianum, DC. False Gromwell. 



Terra Cotta; Potomac Boat Club Landing; also near Bladensburg (Professor 

 Chickering). Middle of June. 



iEchivuxi. V id g ar e, L,. Viper's Bugloss. Blue Thistle. Blue-weed. 

 First half of June. Autumnal flowers collected October 8, 1880. 



CONVOLVULACEiE. 



Mornixg-Glory Family 



llpomoea coccinea, L. \_Qi(amocUt coccinea, Moench.] 

 Sparingly escaped from cultivation. September. 



Ilpomoea Nil, Roth. Small Morning-Glory. 

 More common than the last. June to August. 



Ipomcea^M?-j)urea, Lam. Common Morning-Glory. 

 Escaped in some places. September. 



^Ipomcea pandurata, Meyer. Max-of-the-Earth. Wild Potato-Vine. 

 Last of July or first of August. 



Ipomoea lacunosa, L. White-Star Ipomcea. 

 First half of September. 



Convolvulus spithamaeus, L. ICaJysfegia spithamwa, Pursh.] Low Bindweed. 

 Near Ivy City and in Virginia; not common. Last of May. 



t Convolvulus sepium, L. [Calystegia sepium, R.Br.] Hedge Bindweed. 



June to August. 



^Convolvulus arvensis, L. Bindweed. 



Very rare. Formerly along the wall of the National Hospital for the Insane, but 

 now destroyed ; also in the Park between Third and Four-and-a-half streets. I 

 transplanted a vine in my garden and it has bloomed freely two summers, but no 

 capsules have formed. June. 



Cuscuta chlorocarpa, Eng. Dodder. 



Shores of the river on Dianthera, &c., forming beds. July, August. 



Cuscuta arvensis, Beyrich. 

 July to September. 



f Cuscuta Gronovii, Willd. Common American Dodder. 

 September. 



SOLANACEiE. 



Nightshade Family. 



{ Solanum nigrum, L. Common Nightshade. 



Juno, July. 



t Solanum Carolinense, L. Horse-Nettle. 

 June, July. 



tPhysalis pubescens, L. Ground-Cherry. 

 Rare. September, October. 



