Bulletin of the Torrey Botanical Club/V11/The Pteridophyta of Litchfield Co., Ct.

The Pteridophyta of Litchfield Co., Ct. — During the past three summers I have spent a portion of my vacation in Litchfield County, Ct., and am able to report a considerable fern list, with a few new stations for some species.   Most of my collecting has been confined to the towns of Cornwall and Goshen, extending once to Bantam Lake, where the extremely local Marsilia quadrifolia is found, and once to Salisbury and northward along the mountains of S. W. Massachusetts.  In the list, C stands for Cornwall for species not found in Goshen, and S for Salisbury.

Equisetaceæ. — Equisetum arvense, L.,   E. sylvaticum, L.,  E. hiemale, L.  (3).

Ophioglossaceæ. — Ophioglossum vulgatum, L.,   Botrychium simplex, Hitch.,  B. ternatum, Swz.,  B. lanceolatum, Angs.,  B. Virginianum, Swz.  (5).

I have never found B. lanceolatum elsewhere except with its congener B. matricariæfolium.   Diligent search here failed to reveal it.  B. simplex is probably new to the State.

Filices. — Polypodium vulgare, L.,   Adiantum pedatum, L.  Pteris aquilina, L.  Asplenium ebeneum, Ait.,  A. Trichomanes, L. (S),  A. thelypteroides, Michx.,  A. filix fœmina, Bernh.,  Camptosoms rhizophyllus, Link.,  Phegopteris polypodioides, Fée (C),  P. hexagonoptera, Fée,  P. Dryopteris, Fée,  Aspidium acrostichoides, Swz.,  A. Noveboracense, Swz.,  A. Thelypteris, Swz.,  A. cristatum, Swz.,  A. marginale, Swz.,  A. spinulosum, Swz.,  Cystopteris bulbifera, Bernh. (S),  C. fragilis, Bernh.,  Onodea sensibilis, L.,  O. Struthiopleris, Hoffm.,  Woodsia IIvensis, R. Br.,  W. obtusa, Torr.,  Dicksonia pilosiuscula, Willd.,  Osmunda regalis, L.,  O. Claytoniana, L.,  O. cinnamomea, L.  (27).

Marsiliaceæ. — Marsilia quadrifolia, L.   Bantam Lake and Tyler Pond, where it was transplanted by Dr. T. F. Allen and myself in 1881.  (1).

Lycopodiaceæ. — Lycopodium lucidulum, Michx.,   L. dendroideum, Michx.,  L. davatum, L.,  L. complanatum, L.  (4).

Selaginellaceæ. — Selaginella rupestris, Spring.,   S. apus, Spring.  (2).

Isoetaceæ. — Isoetes echinospora, Durieu, var. Braunii, Engelm.   Tyler Pond, common.  I believe this species has never before been reported from Connecticut.  (1). — Total, 43.

During each of the three years I have found the so-called var. obtusilobata of Onodea sensibilis growing in the same locality under conditions identical with those noted by me in this journal for September, 1881.   I am more fully convinced that the explanation there given was sufficient to account for the variation in this locality.

I have also the pleasure of recording "Tamarack Swamp," near Syracuse, N. Y., as a new locality for Botrychium simplex, Hitch.

Syracuse University, Jan., 1884.

Lucien M. Underwood.