33 



From June 20th to July 1st. 



Crassulacece. 



Sedura acre, Mossy stone-crop. 



Pritnulacece. 



Lysimachia quadrifolia. Loosestrife, 



stricta, " 



numularia, Moneywort. 



Hottonia iuflata, Featherfoil. 



Campanulacete. 



Specularia perfoliata, Venus" looking-glass. 



Gentianacefe. 

 Limnautheniiun lacunosum, Floating heart. 



A quifo liacete . 

 Ilex opaca. Holly. 



OrcJiklacece. 



Pogonia ophioglossoides, Pogonia. 



Calopogon pulchellus, 

 Habenaria virescens, 



psycodes, 



fimbriata, 



('aloi»ogoii. 



Greenish orchis. 



8ra. pur. fringed orchis. 



Large '' '" '• 



Naiadacete. 



Potamogeton hybridus. Pondweed 



pusillus, " 



Tuckerniani, '' 



*Oakesianus, " 



*natans, " 



heterophyllus, '■ 



fluitaus, '• 



*Pennsylvanicus, " 



*Kobbinsii, '• 



pectinatus, '• 



Ruppia maritima, 



Zostei'a marina, 



Zannichellia i)alusti-is. 



Rocky places ; escaped from 

 gardens. 



Low grounds ; common. 



Jioadside, Bliss" Corner, Dart- 

 mouth ; escaped. 

 Muddy pools and sw. places. 



Sterile or gravelly ground. 



Ponds and streams ; common. 



VV'oods; common. 



Boggy places : common. 



Wet meadows, itc. ; common. 

 '' not freq"t. 



Ponds, pools, and ditches. 



Ditch-grass. 

 Eel-grass. 

 Horned pondweed. 



Chara flexis 



Chdraeefv. 



Chara. 



Island of Penekese. 

 Shallow water and diti-hes. 

 Salt water near shore. 

 Stream from Turner's Mill. 



Acush. Riv. near upper res. 



* Dr. E, L, Sturtevant, 



