74 



THE FERN BULLETIN 



the side of the bordering dune having an abrupt slope, 

 considerable sand was washed or blown in to mix with 

 the peat. A second example is from Otis, Porter Co., 

 Ind., Oct. 22, 1008. In this the spores have nearly all 

 fallen from the spore-cases. It was from a little 

 colony in a forest of beech and maple, and a soil of 

 clayey till similar to that at Saegertown. Barren 

 specimens had been obtained from this wood once be- 

 fore. The segments or the barren fronds of these In- 

 diana specimens are quite long. In those from Otis 

 they are narrower than in those from Porter and most- 

 ly longer and more acute, and may be the variety elon- 

 gatum, Gilbert and Haberer, being quite like the one 

 figured in the Gray's New Manual. Among specimens 

 supplied by others is a fruiting plant from Reno, D. C, 

 No. 2745, collected by Agnes Chase, Oct. 9 1904, and 

 another collected by Lester F. W ard in vicinis W ash- 

 ington. D. C, Nov. 3 1878, labeled by him B. tcr- 

 natum, Swartz, var. dissectum, Willd. The divisions 

 of this are very long and acute, and quite finely dis- 

 sected. Both of these specimens from the Potomac 

 Valley have the sporangia in about the same stage as 

 those from Otis, Md., and belong to the late fruiting 

 forms. 



It will be seen from these data that but two of the 

 August collections of B. ternatum intermedium were 

 disposed to be late, those from Pavilion, N. Y., and 

 Bagotville, Canada. Probably there was little very 

 special in the habitat to lead to this. In the case of 

 the former it was a north exposure where but little sun- 

 niness would be experienced. The roots, which in Bo- 

 try chium run rather deep, penetrate a stiff blue clay 

 of the decomposed Hamilton shales that lie just be- 

 neath the surface. Such an exposure and soil would 



