MIDDLESEX FLOE A. 83 



PHYTOLACCACE^E. POKEWEED FAMILY. 



PHYTOLACCA, Tourn. 



P. decandra, L. POKE. GARGET. 

 Common. July-Sept. 



CHENOPODIACE>. GOOSEFOOT FAMILY. 



CHENOPODIUM, L. 



* C. polyspermum, L. 

 Franringham (Rev. J. H. Temple) . July-Sept. Adv. from Eu. 



C. ALBUM, L. PIGWEED. 

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



C. URBICUM, L. 



Somerville (C. E. Perkins) ; Lowell (Dr. C. W. Swan) ; Medford 

 (F.S.Collins). July-Sept. Nat. from Eu. 



C. URBICUM, L., var. RHOMBIFOLIUM, Moq. 



Newton (C. J. Sprague) ; specimen in herb. B. S. N. H. July- 

 Sept. Nat. from Eu. 



C. MURALE, L. 



Tewksbury (B. D. Greene), specimen in herb. B. S. N. H. ; Framing- 

 ham (Rev. J. H. Temple). Not common. July-Sept. Nat. from 

 Eu. 



C. HYBRIDUM, L. MAPLE-LEAVED GOOSEFOOT. 

 Common. July-Sept. Nat. from Eu. 



C. BOTRYS, L. JERUSALEM OAK. 



Lowell, Cambridge, Somerville, et al. Introduced from Eu., and 

 apparently naturalized near Boston, where it has been not uncom- 

 mon since Bigelow's Fl. Bost. July-Sept. 



C. AMBROSIOIDES, L. MEXICAN TEA. 



Somerville (C. E. Perkins); Cambridge and Medford (F. S. 



Collins). July-Sept. Int. from Tr op. Am. 

 C. AMBROSIOIDES, L., var. ANTHELMINTICUM, Gray. 



Lowell (Dr. C. W. Swan) ; Cambridge and Medford (F. S. Collins). 



July-Sept. Int. from Trop. Am. Both type and var. apparently 



naturalized; have been common for several years near Boston. 

 C. fcetidum, L. 



Chelmsford, wool-waste (Dr. C. W. Swan). Aug. Adv. from 



Trop. Am. 



"Stems herbaceous, erect, sulcate-striate, mostly simple; leaves 



petioled, subpatulous, oblong, sinuate-pinnatifld with obtuse lobes, 



thin, smoothish, glaucous green on both sides; racemes divari- 



