1921 ] Fernald,— Expedition to Nova Scotia 165 



New Hampshire. It is Thelypteris palustris, forma suaveolens. 1 

 We had hoped to find new stations for the two local species, Poly- 

 gonum acadiense (already referred to, p. 134) and Agropyron acadiense 

 Hubbard, 1 which Dr. St. John and I had discovered in 1914 at Grand 

 Narrows, but, in our searching of the beaches about Baddeck, Long 

 and I found only a solitary plant of the Polygonum, on Kidstone's 

 Island, here, as at Grand Narrows, associated with P. Roil, and at 

 this station with Agropyron pungens clearly passing into A. acadiense. 



Bissell and Linder, in the meantime, were having their best collect- 

 ing in tin 1 rich woods about a lime quarry on a mountain near George 

 River. They got many of the species we were finding and some 

 others new to our summer's collections: gigantic Thelypteris Filix- 

 mas (L.) Nieuwl., the only Cygiopteris fragilis of the whole summer, 

 Athyrium acrostwhoides, Carer Bebbii, C. aurea, Satureja vulgaris 

 and other plants of sweet or basic soils, though at the leached summit 

 of the mountain they found a typical acid bog with Rubus Ckamae- 

 morus anrl the other common acid bog plants. 



Dr. and Mrs. Webster having told me of a spot near Gavelton, on 

 the Tusket, where they had found Sabatia Kennedyana without 

 having te reach under water for it, as we had been forced to do, Dr. 

 Webster most kindly took Long ami me to the station on the morning 

 of September 2nd, and there, near the foot of Gavelton (or Butler) 

 Lake, he introduced us to a most fascinating savannah. Our time 

 was very limited but enough to indicate what was to be the next 

 day's work. Unfortunately Bissell could not share in this, one of 

 the best days of the season, for he returned home on the night of the 

 2nd; but on the 4th Long, Linder and 1 went to Gavelton prepared 

 for a full day of collecting. 



Sabatia was abundant both on the wet savannah and the cobbly 

 beaches and, of course, all the specialties we had previously found 

 with it. Proserpinaca palustris and P. peetinata (Florida to south- 

 ern Maine), the Atlantic American representatives of the tropical 

 and austial tribe Halorrhageae, a tribe with most of its species in 

 Australia, were abundant on the savannah and with them, clearly a 

 hybrid of the two, as it likewise seems to be in eastern Massachusetts 



1 Thelvpi ebib palustris Srlimidel, forma suaveolens (Chile), n. comb. Neph- 

 r odium Thelypteris, forma suaveolens Clute, Kern Bull, xviii. 87 (1910). 

 2 Rhoduk\, xix. 15 (1917). 



