1921] Fernald,— Expedition to Nova Scotia 229 



* Setaria viridis (L.) Beauv., var. Weinmanni (Rf & S.) Brand; 

 Fernald & Wiegand, Rhodora, xii. 133 (1910). This easily recog- 

 nized variety, now widely dispersed as a weed in eastern Canada, 

 occurs in the railroad yard at North Sydney and presumably else- 

 where. 



** Leersia oryzoides (L.) Sw., forma CLANDESTINE E. H. Fames, 

 Rhodora, xviii. 239 (1916). This form seems to be more common in 

 Nova Scotia than the typical form of the species, with exserted 

 panicles. In all our Nova Scotian collections of both forms the 

 spikelets are unusually long, 5-6 mm. 



** L. oryzoides, forma glabra A. A. Eaton, Rhodora, v. 118 

 (1903). In New England this form is characteristic of tidal Hats, 

 but in Trefry's Lake, Arcadia (Yarmouth Co.) completely submersed 

 colonies had the sheaths essentially as smooth as in Eaton's original 

 material, thus suggesting that the smoothness is a result of sub- 

 mergence. 



Milium effusum L. To the Cape Breton record should be added 

 Hants Co.: alluvium of Five-Mile River. See pp. 136, 170. 



* Oryzopsis canadensis (Poir.) Torr. Stipa canadensis Poir. Dry 

 open barrens, Springhill Junction (Cumberland Co.); thence north- 

 ward into New Brunswick and eastward to Prince Edward Island and 

 Newfoundland. See p. 132. 



(). asperifolia Michx. Common on peaty or sterile woodland 

 soil, throughout. 



MlJHLENBERGIA RACEMOSA (Michx.) B. S. P. Common in peaty 

 swales and savannahs, apparently throughout. 



Alopecurus genieulatus L. Recorded by Macoun only from Halifax, 

 but. common in ditches and shallow pools near towns in Yarmouth 

 and Shelburne Cos.; also Baddeck. See p. 95. 



** A. genieulatus, var. microstachyus Ueehtr. in Fiek, Fl. von 

 Schlesien, 500 (18S1). This variety with small panicles (mostly 

 1-2 cm. long) is abundant in some roadside ditches at Yarmouth. 



A. aristulatus Michx. A. genieulatus, var. arixtulatutt (Michx.) 

 Torr. Cumberland Co.: spring-pools and ditches south of Am- 

 herst. 



* Sporobolus uniflorus (Muhl.) Scribn. Not recorded in Ma- 

 eoun's Catalogue from Canada. Common in peat and wet sand from 

 Yarmouth Co. eastward at least to Annapolis and Shelburne Cos.; 

 also in Newfoundland. Recently collected about Georgian Bay, 

 Ontario,— see J. M. Macoun, Ottawa Nat. xxiii. 192 (1910). 



** Agrostis hyemalis (Walt.) B.S.P., var. elata (Pursh), n. 

 comb. Trickodiwn datum Pursh, Fl. Am. Sept. i. 61 (1814). A. 

 data (Pursh) Trill. Mem. Acad. St. Petersb. ser. 6, vi. pt. 2, 317 

 (1841). A. perennans data (Pursh) Hitehe. U. S. Dept. Agrie. Bur. 

 PI. Ind. Bull. no. 68: 50 (1905). For discussion see p. 155. 



Known northeast of Long Island and Nantucket only from barrens 

 of Nova Scotia, the Magdalen Islands and Newfoundland. The 



