40 MIDDLESEX FLOEA. 



CUCURBITACEyE. GOURD FAMILY. 



SiCTOS, L. 



S. ANGULATUS, L. One-seeded Star-Cuctjmbee. 

 N. Reading, Maiden, Cambridge, et al. Growing by the roadside 

 or upon rubbish heaps." July-Sept. Nat. from farther west. 



ECHlNOCYSTis, Torr. & Gray. 



E. LOBATA, Torr. & Gray. Wild Balsam-Apple. 

 Lowell, Concord, Maiden, Weston, et al. In localities similar 

 to the preceding. July-Sept. Nat. from farther west. 



UMBELLIFERyC. PARSLEY FAMILY. 



Hydbocottle, Toum. 



H. Americana, L. Water Pennywort. 



Common. July-Aug. 

 H. umbellata, L. 



Occasional along the banks of Charles Eiver, Martin's, Hammond's, 



Fresh Ponds, et al. July-Aug. 



Sanicdla, Tourn. 



S. Marilandica, L. Black Snakeeoot. 

 Not uncommon. June-July. 



Daucus, Tourn. 



D. CAROTA, L. CAEltOT. 



Eather common. July-Sept. Nat. from Eu. 

 Heracleum, L. 



H. lanatum, Michx. Cow-Parsnip. 

 Natick (Austin Bacon) ; Concord (Minot Pratt) ; Townsend (Miss 

 H. E. Haynes) ; Melrose (Bradford Torrey). Eare. Jiine. 



Pastinaca, Tourn. 

 P. SATivA, L. Parsnip. 

 Throughout the county, but nowhere very common. July. Nat. 

 from Eu. 



Angelica, L. 



A. atropurpurea, L. (Archangelica atropurpurea, HoflEm., Man;) 

 Great Angelica. 



Generally distributed, but scarce. Specimen from Watertown in 

 the Boott Herb. June-July. 



