28 



2 virginicus L. Bugle Weed. 



234 Lysimachia L. 



1 capitata Ph. 



2 ciliata Mx. 



3 quadrifolia L. 



4 racemosa Lmk. Loose Strife. 



235 Lythrum L. 



1 verticillatum L. Swamp Willow Herb. Sunderland. 



M. 



236 Magnolia L. 



I glauca L. Beaver Tree. Swamp Laurel. Gloucester, 

 Cape Ann ; its most northern limit. 



237 Malaxis Sw. 



1 liliifolia Sw. Twayblade. Holyoke. 



2 Loeselii Sw. 



238 Malva L. 



1 rotundifolia L. Low Mallows. 

 § 2 sylvestris ? L. 



239 Marrubium L. 



§ 1 vulgare L. Horehound. 



240 MedicagoL. 



1 lupulina L. Cummington. Dr. Porter. 



241 Melampyrum L. 



1 americanum Mx. Cow Wheat. 



242 Menispermurn L. 



1 canadense L. Moonseed. School Meadow, Hadley. 



243 Mentha L. 



1 borealis Mx. Horse Mint. 

 § 2 piperita Sm. Peppermint. 

 § 3 viridis Walter. Spear Mint. 



244 Menyanthes. 



1 trifoliata L. Buckbcan. Amherst and Hawley. 



245 Menziezia Sm. 



1 coerulea Sw. White Hills. 



246 Mycrostylis Nutt. Malaxis Siv. 



1 ophioglossoides Nutt. Adder Mouth. Deerfield. 



