MIDDLESEX FLORA. 15 



S. apetala, Willd. 



Lexington, growing with Anychia capillacea, on a wooded hill- 

 side, Aug. 6, 1883 (C. W. Jenks). Probably adv. from Eu. 

 "Hoary pubescent; stein erect, branching; leaves lanceolate, the 

 upper linear; flowers few, terminal, or in the forks, calyx 

 obovate, 10-striate; petals none." DC. Prodr., I. 369. 



LYCHNIS, Tourn. 

 L. DIOICA, L. 



Medfordand Cambridge (C. E. Perkins); Ashland, established, 

 (Rev. Thos. Morong). Scarce. Nat. from Eu. For description, 

 see Wood's Class-Book. 



L. vespertina, Sibth. 

 Cambridge, (fide specimen in Gray Herb.) 



L. Grithago, Lam. CORN COCKLE. 



Westford (Miss Emily F. Fletcher) ; Lowell (Dr. C. W. Swan) ; 

 Ashland, grain-field by railroad (Rev. Thos. Morong); Concord, 

 cornfields (Minot Pratt). According to Dewey's Rep. on Herb. 

 Plants, 1840, "scarcely naturalized, but propagated with the wheat ;" 

 no more evidence of naturalization at present. June-July. 



ARENARIA, L. 



A. SERPYLLIFOLIA, L. THYME-LEAVED SANDWORT. 



Rather common. May-Sept. Nat. from Eu. 

 A. lateriflora, L. 

 Common eastward. May -June. 



STELLARIA, L. 

 S. MEDIA, Smith. CHICKWEED. 



Everywhere. April-Nov. Nat. from Eu. 

 S. longifolia, Muhl. LONG-LEAVED STITCHWORT 



Lowell (Miss M. Swan). Scarce. June-July. 



S. GRAMINEA, L. 



Maiden and Belmont (F. S. Collins) ; Watertown (L. H. Bailey, 



Jr.); Winchester (C. E. Perkins); Cambridge (Walter Deane) ; 



Ashland (Rev. Thos. Morong). Not uncommon. June-July. 



Nat. from Eu. 



Often confounded with the preceding, but its affinities are rather 



with S. longipes of the Manual from which it differs in the always 



linear-lanceolate leaves (broadest above the base), the divaricate 



pedicels, and more elongated inflorescence. 

 S. uliginosa, Murr. SWAMP STITCHWORT. 



Lowell, July 11, 1883 (Dr. C. W. Swan). Rare. 

 S. boreal is, Bigel. NORTHERN STITCHWORT, 



Ashby (Dr. C. W. Swan); Tewksbury (J. R. Churchill, 1884); 



Waltham (F. S. Collins). May-June. 



