66 



July 10th to 20th 



Eriocaulacece. 



Eriocaulon articulatum, (Huds.) Morong. Pipewort. 



Ponds; common. 



Eu2)horhiac€€e. 



Euphorbia polygonifolia, L. Seaside Spurge. 



Sandy seashores t. Oct. ; com. 

 maculata, L. Milk Purslane. 



Open places and roadsides; com. 

 Peplus, L. Petty Spurge. 



Waste places; b. t. Nov. Adv. f. Eu. 

 marginata, Pursh. Snow-on-the-Mountain, 



Garden escape. 



Lemnacece. 



Lemna trisulca, L. Duck's-meat. 



Muddy pools; com. 



Poh/gonaceoi. 



Polygonum Persiearia, L. Lady's Thumb. 



Near dwellings ; com. ; t. Nov. Nat. f . Eu. 

 Hydropiper, L. Common Smartweed. 



Wet grounds ; com. ; t. Nov. 

 acre, H. B. K. Water 



Wet grounds ; com. ; t. Nov. 

 var. leptostachyum, Meisn. ** 



Wet grounds, 

 hypropiperoides, ]\Iichx. Mild Water Pepper. 



Wet grounds ; com. ; t. Nov. 

 avieulare, L. Knotweed. 



Door yards, etc. ; t. Nov. 

 arifolium, L. Halberd-leaved Tear-Thumb. 



Wet grounds and woods ; t. Nov. 

 sagittatura, L. Arrow-leaved " 



Wet grounds and woods; t. Nov. 

 Convolvulus, L. Black Bindweed. 



Cult, and waste grounds. Nat. f. Eu. 

 scandens, L. Clim'g False Buckwheat. 



Moist thickets ; roadsides. 



