15(; Bulletin 187 



A. cristatura x margiuale. Pittsford, (Margaret Slosson). ' 



A, cristatum x spiimlosnm. Middlebiiry, (Brainerd). 



A. cristatum, var. Clintoiiiaimni x Goldiamini. Middlebury, (Brainerd 

 1879). 



A. cristatum, var. Clintonianum x margiuale. Pittsford, (Margaret 

 Slosson); Middlebury, (Brainerd). 



A. cristatum, var. Clintouianum x spinulosum. Middlebury, (Brain- 

 erd) ; Pittsford, (Margaret Slosson). 



A. cristatum, var. Clintonianum x spinulosum, var. intermedium. Mid- 

 dlebury, (Brainerd); Montgomery, (Mary L. Gates). 



A. Filix-mas x marginale. North Bridgewater, (Winslow) ; Barnard, 

 (Miss F. E. Corne) ; Brandon, (Underwood). 



A. Goldiauum x marginale. Leicester, (Brainerd) ; Cavendish, (Rugg). 



A. Goldianum x spinulosum, var. intermedium. Middlebury, (Brainerd 

 1879). 



A. marginale x spinulosum, var. intermedium. Orleans, (Winslow). 



A. spinulosum x spinulosum, var. intermedium. Where numerous 

 plants of species and variety grow together, intergrading forms are 

 not infrequent. 



ASPLENIUM. Spleenwort 



A. acrostichoides Sw. (A. thelypteroides Michx.; Athyrium thelyp- 

 teroides [Michx.] Desv.). Silvery Spleenwort. Rich woods; fre- 

 quent. 



A. angustifolium Michx. (A. pycnocarpon Spreng). Narrow-leaved 

 Spleenwort. Rich moist woods; occasional. North in the Con- 

 necticut Valley to St. Johnsbury. 



X A. ebenoides R. R. Scott. (Asplenium platyneuron x Camptosorus 

 rhizophyllus) . Scott's Spleenwort. On limestone; rare. Rutland, 

 (G. H. Ross) ; Pittsford, (Grace A. Woolson) ; Brandon, (Button) ; 

 Salisbury, (Dr. H. H. Swift); Proctor, (Kirk). 



A. Filix-femina (L.) Bernh. (Athyrium Filix-foemina [L.] Roth"). 

 Lady Fern. Moist woods; common. A variable species with many 

 described forms. 



A. platyneuron (L.) Oakes. (A. ebeneum Ait). Ebony Spleenwort. 

 Rocky woods; frequent. North in the Connecticut Valley to St. 

 Johnsbury. Var. incisum (E. C. Howe) Robinson. (A. ebeneum, 

 var. Hortonae Davenp.). With type; rare. Brattleboro, (Mrs. F. B. 

 Horton) ; Pittsford, (Katherine A. French). Var. serratum (E. S. 

 Miller) BSP. With type; rare. Pittsford, (Grace A. Woolson). 



A. Ruta-muraria L. Rue Spleenwort. Limestone cliffs of western 

 Vermont; occasional. Lake Willoughby, (E. Faxon). 



A. Tricliomanes L. Maidenhair Spleenwort. Shaded cliffs; frequent. 

 Var. incisum Moore. Brattleboro, (Frost, Annie L. Grout) ; Nor- 

 wich, (Jesup) ; Pittsford, (Rugg). 



