50 Pteridophyten. — Palaeontologie. 



podium vulgare Columbianum Gilbert, Woodsia obtusa nana Lemmon, and 

 Woodwardia Virginica f. thelypteroides (Prush) Gilbert. Trelease. 



Davenport, G. E., A plumose variety of the ebony 



spieen wort. (Rhodora. III. p. 1 — 2. PI. 22. January 



1901.) 



Aspleninm eheneuni Hortonae n. var. from Brattleben, Vt. 



Trelease. 



Driggs, A. W., Botrychlum matr'icariaefolliim in Connecticut. 



(Rhodora. III. p. 3b. February 1901.) 



Reported from West Hartford, on Talcott mountain, at an altitudc 

 of 650 feet. Trelease. 



Owen, Maria L., Ferns of Mt. Toby, Massachusetts. 

 (Rhodora. III. p. 41—43. March 1901.) 



A local list: Ovar 800 individuals of Botrychiutn simplex are noted 

 for a Single smail area. Trelease. 



Underwood, L. M., An enumeration of the Pteridophytes 



collected by R. S. Williams and J. B. Tarleton. 



(Bulletin of the New-York Botanical Garden. IL p. 148—149. 



May 1901.) 



Seven ferns, 1 Eqnisetuni, 4 Lycopodhinis, and 2 Se/aginel/as, from 

 the Klondike region ot Alaska and British America. Trelease. 



Maxon, W. R., A list of the ferns and fern allies of 

 North America, north of Mexico, with principa! 

 Synonyms and d i st rib ution. (Proceedings of the United 

 States National Museum. XXIII. p. 619— h5K) Washin,i(ton 

 (Governement Printing Office) 1901. 



This list aims at affording füll citations, the more impor- 



tant synonomy, and generally used vernacuiar names , for the 



species admitted. The nomenclature adopted is on Neoamerican 



lines, in this and the estimate of specific and varietal limitations 



the last edition of Underwoods Our native ferns and their allies 



being followed in the main. By families, the species recognised 



are distributed as follows: 



Ophioglossaceae 24, Hymenopliyllaceac 2, Schizacaceae 4, Osmunda- 

 ceae 3, Ceratopteridaceae 1 , Polypodiaceae 163, Marsileaceae 6, Salvinla- 

 ceae 3, Equisetaceae 14, Lycopodiaceae 18, Selaginellaceae 17, Isoetaceae 

 26, — or a total of 281 species, with a very few additional varieties. 



Trelease. 



Renault (B.), Sur quelques Fougeres heterosporees. 

 (C. R. Academie des Sciences. CXXXIII. p. 648— 691. 5 Fig. 

 21. Octobre 1901.) 



L'auteur a observe, dans les sporanges d'une Lecopteris du 

 type Asterotheca, rencontree dans les magmas quartzeux de 

 Grand'croix pres St. Etienne, des spores de deux sortes : les 



