166 Rhodora IJult 



and Rhode Island, P. intermedia Mackenzie, 1 originally described 

 from the pine barrens of New Jersey ami from Georgia. Polygonum 

 Muhlenbergii, first east of the Penobscot, P. robtutius and Glyctria 



pallida, first east of southern Maine, abounded. The southern Pmi- 

 icuiti dichotomifiorum grew on shores or at the border of the savannah, 

 and the tall clumps of Juncus canadensis had an unusual appearance 



owing to the very few (3—7) flowers in the scattered glomerulus borne 

 on long, almost erect branches, the inflorescence thus suggesting 

 that of ./. brevicoudatus but the plant clearly an extreme variation 

 of ./. canadensis, with the perianths unusually long for the species 

 (3.5-4 mm. long). Typical ./. canadensis has the flowers very num- 

 erous in the glomerule, the branches less rigidly erect and the perianth 

 from 2.5 to very rarely as much as 3.5 mm. long. Linder and I 

 later (in October) traeed the extreme variety nearly to the head- 

 waters of the East Branch of the Tusket, and although it sometimes 

 tntergrades with typical J. ca?iadensis it seems worthy of recognition 

 as a variety. Upon looking up the collections made by Long and 

 me on Cape Cod in 1918 I find that at one of the ponds in Dennis 

 we got this same peculiar variety of the Tusket valley. 



On the beach of the lake Woodwardia areolata of southern, wet 

 cypress swamps and )('. virginica of coastal plain quaking bogs were 

 growing among the cobble-stones, and the finest Bog Cranberry, 

 Vaccinium macrocarpon, I had ever seen was here trailing over the 

 quartzite boulders; while the dominant blueberry of the rocky shore 

 was Vaccinium raciUmts, heretofore unknown in New England east of 

 southern York County, Maine, although there are records of it from 

 Nova Scotia. 



This was to have been our last day in the field, for the calls of 

 home and the opening of the academic year could not be indefinitely 

 postponed, but it did seem hard luck," just as we were packing to 

 leave Nova Scotia, that the isolated coastal plain types were so 

 rapidly developing. By working overtime, however, and blessed at 

 last by brilliant September sunshine, we got the presses into shape 

 and took just one more day in the field. On September (> we went 

 over the only bad road we encountered in Yarmouth County, to 

 Great Pubnico Lake, a splendid lake but with water, as every- 

 where else, uncomfortably high. On the sandy shore with the 

 1 Mackenzie, Torreya, x. 250 (1910). 



