1921] Fernald,— Expedition to Nova Scotia 145 



em New Jersey; and north of the Cape Cod region so extremely 

 rare that its single station on the Neponset meadows, south of Boston, 

 has long been a famous spot. I was also worried by a shrub with 

 lustrous lark-green leaves which looked amazingly like some Azalea, 

 but close examination showed that the Nova Scotian shrub was 

 an extreme form of Rhodora, Rhododendron canadensc (L.) Torr., 

 forma viridifolium Fernald, 1 quite lacking the grayish bloom which 

 usually characterizes the foliage and new twigs of that shrub. At 

 the northern end of the lake is a deep sluggish creek of indefinite 

 depth, blackness and breadth which could be crossed only by finding 

 a rare leaning tree or log; and during the hunt for such a bridge we 

 struggled through a dense tangle of Rosa pahistris and Smilax rotundi- 

 folia, southern types now losing their novelty and later on found to 

 be frequent species, the Smilax seen northward to the banks of 

 Sissiboo River in Digby County and eastward to the banks of Sable 

 River in eastern Shelburne County. 



In this thicket grew the characteristic coastal plain variety of 

 J uncus (ffusus, the plant with slender purple sheaths, pliant and 

 conspicuously corrugated culms, as in vars. conglomerate and Pylaei, 

 but with perianths intermediate between those of the other two 

 varieties. This plant is general on the coastal plain from South 

 Carolina to southern Maine and in Nova Scotia. West of the creek 

 for some distance the spruce and red maple swamp was so extremely 

 palpitating at the border of the lake that we were forced some dis- 

 tance back through the everywhere dominant Inkberry and Chain 

 Fern, the monotony occasionally relieved by Calla palustris, which 

 seems to be rare in southwestern Nova Scotia. One of the coves at 

 this side of the lake had, far out in deep water, a broad belt of some 

 aquatic Sparganium, and we made frequent attempts along the 

 quaking margin to find stranded fragments. Failing in this and 

 coming to surer footing, we waded out as far as possible and with the 

 aid of a small tree succeeded in dragging in a tangle from the Spar- 

 ganhtm-he\t, the northern S. fluctuans, ranging from Quebec to 

 northern Connecticut and Minnesota, and with it a mixture of the 

 coastal plain Utricularia purpurea and sterile fragments of the char- 

 acteristic New Jersey pine barren Potamogeton confertoides, a species 

 also common in eastern Newfoundland but not heretofore known 

 from Nova Scotia. 



' Ft-mald in Wilson & Render, Mon. Azal. 122 (1921). 



