CATALOGUE OF PLANTS. 195 



(Faxon & Rand) ; — The Heath, Great Cranberry Isle ; Great 

 Heath (Rand). 



S. Dusenii (Jens.), Russ. & Warnst. S. Mendocinum, Warnst. 

 in Bot. Gaz., xv. 221, not of S. & L. Var. parvifolium, 



Warnst, 



Plants soft and slender, in dense tufts, partly immersed; 

 stem leaves small, about 0.54-0.60 mm. long and as broad at 

 base, triangular-lingulate, without fibrils or somewhat fibrillose 

 toward the usually rounded and slightly fimbriate apex; branch 

 leaves also small, about 1.14—1.37 mm. long and 0.54 mm. broad, 

 almost always falcate-secund, narrowly bordered; outer pores 

 numerous, often passing into large membrane-gaps toward the 

 apex. Warnst., Hedwigia, xxxii. (1893) 14. In jJool, Dog Mt. 

 (E. Faxon). 



S. moUuscum, Bruch. S. tenellum, Ehrh. L. & J., Mosses N. 

 A., 20. 



Abundant, Sunken Heath (Faxon & Rand) ; — Great Heath 

 (E. Faxon); — The Heath, Great Cranberry Isle (Rand). The 

 more robust forms are var. robustiim, Warnst. 



§ 3. SquarroSa. 



S. squarrosum, Pers. L. & J., Mosses N. A., 16. 



Frequent. Near Northwest Cove (Faxon); — Seal Harbor; 

 woods, Somes Pond (Rand). 



Var. spectabile, Russ. Bot. Gaz., xv. 224. 

 Not uncommon. 



Var. semisquarrosum, Russ. Bot. Gaz., xv. 224. 

 Southwest Valley road (Rand). 



S. teres, Angstr. L. & J., Mosses N. A., 16. 

 Rare. The Barcelona meadow (E. Faxon). 



Var, imbricatum, Warnst. Bot. Gaz., xv. 224. 

 Bog, north of Beech Hill (Rand). 



