1921] Fernald, — Expedition to Nova Scotia 187 



OPHIOGLOSSUM vulgatum L. Frequent in damp sandy and cobbly 

 beaches of lakes or in sterile meadows, Digby and Yarmouth Cos. 

 Varying from large plants to the smallest extreme (Var. minus 

 Moore, 0. armarium E. G. Britton) in different portions of individual 

 colonies. See pp. 141, 142. 



BOTRTCHIUM simplex E. Hitchc. Rare: a small colony of ex- 

 tremely dwarf plants, sandy and gravelly beach of Cedar Lake, 

 Yarmouth Co. See p. 102. 



13. KAViosiM (Roth) Aschers. Rare: a solitary plant in mixed 

 woods, southern slope of North Mt., Middleton; previously recorded 

 from Blomidon northward and eastward. 



B. dissectum Spreng. and forma obliquum (Muhl.) Fernald, 

 Rhodora, xxiii. L51 (1921). Frequent or common in sandy or 

 gravelly, either open or turfy soils of Digby, Yarmouth and Shel- 

 burne C^s. Recorded by others eastward to Halifax Co. See pp. 

 141, 151. 



B. TERNATUM (Thunb.) Sw., var. RUTAEFOLIUM (A. Br.) DC. 

 Apparency rare in or absent from the southwestern section: seen 

 only at Cedar Lake, Digby Co. 



* Equisetum litokale Kuehl. Very abundant on the wet lower 

 gravelly beach of Shubenacadie Grand Lake (Halifax Co.). 



* E. limosum L., forma polystachium (Brueckn.) Doell; Fernald 

 & Weatlierby, Riiodoka, xxiii. 47 (1921). Boggy thicket, Hecta- 

 nooga. See p. 97. 



E. HYKMALE L., var. affine (Englm.) A. A. Eaton. Light sandy 

 or gravelly banks, railroad embankments, etc., through the northern 

 and northwestern counties, west to banks of Sissiboo River, Digby 

 Co. 



E. sciKPOiDKS Michx. Rich wooded banks and mossy slopes, 

 Cape Breton to the North Mt., Annapolis Co. See pp. 133, 139, 170. 



LYCOPODIUM inundatum L. Common throughout the province. 



L. ini noatum L., var. Bigelovii Tuckerm. Sandy and peaty 

 beaches of lakes and in boggy savannahs, common in Digby and 

 Yarmouth Cos. To be expected eastward. Reported in Macoun's 

 Catalogue from Grand Lake, Halifax Co. and from North Sydney 

 and Lou sburg, Cape Breton; but the only specimens we have seen 

 of Macoun's material from North Sydney are not characteristic. 

 See pp. 99, 100, 101, 109. 



L. anmotinum L., var. acrifolium Fernald, Rhodora, xvii. 124 

 (1915). Less common than typical L. annotinum. Seen by us only 

 in spruce and maple swamps by Clement Pond, Barrington (Shel- 

 burne Co.) and on a dry bank at Hectanooga (Yarmouth Co.). 



L. clavatum L., var. mkoastachyon Fernald & Bissell,RHODORA, 

 xii. 'hi (1910). Frequent throughout the province. 



li. OB8 ikim L. The current descriptions of the two well defined 



