30 CATALOGUE OF PLANTS. 



Hydropiper, L. (Water-pepper.) 



acre, H. B. K. (Water Smartweed.) 



hydropiperoides, Michx. Shallow water. 



amphibium, L. Windsor, Vt., Leland. In or near ponds. 



Virginianum, L. Banks of Conn, river. Windsor, Vt., Leland. 



aviculare, L. (Knotgrass.) Roadsides ; dooryards, etc. 



var. erectum, Roth. Common and now considered a distinct 

 species, 

 arifolium, L. Wet grounds, 

 sagittatum, L. Wet grounds. 

 Convolvulus, L. (Black Bindweed.) 

 cilinode, Michx. On fences, etc. 

 dumetorum, L. Fences, etc. 



Fag'opyrum, Tourn. Buckwheat. 



esculentum, Moench. Old fields. 



Rum ex, L. Dock. Sorrel. 



orbiculatus, Gray. Swamps. 

 Brittanica, L. Claremont, Barrows. 

 crispus, L. (Curled Dock.) Very common. 

 obtusifolius, L. Fields and roadsides. 

 Acetosella, L. (Sheep Sorrel.) Dry fields. 



Order 64. LAURACEiE. Laurel Family. 



Sassafras, Ness. 



officinale, Ness. Plainfield, Miss Stevens; Springfield, Vt., Rev. S. 

 Hayward; more common southward. 



1 

 Order 65. THYMELEACE^E. Mezereum Family. 



Dirca, L. Leatherwood. 



palustris, L. Rich woods ; sometimes in swamps. 



Order 66. CERATOPHYLLACE^. Horn wort Family. 



Ceratophyllum, L. 



demersum, L. Goose Pond in Canaan, etc., Jesup. 



Order 67. CALLITRICHACE^E. Water-Starworts. 



CalUtriclie, L. 



verna, L. Ponds ; common. 



