Flora of Vermont 157 



A. Tiride Hudson. Green Spleenwort. Cliffs, Mt. Mansfield and Camel's 

 Hump, (Priugle) ; Mt. Hor, Westmore, (Mrs. Condit) ; Plymouth 

 Notch, (Mabel A. Strong). 



A. Trielionianes x Ruta-iuuraria. Proctor, (Grace A. Woolson). 



CAMPTOSORUS. Walking Leaf 



C. rhizophyllus (L.) Link. Walking Fern. Shaded rocks, especially 

 limestone; locally common in western Vermont. Plymouth Notch, 

 Hartland, Brattleboro, Williamstown, Norwich and Windsor in the 

 Connecticut Valley. 



CRYPTOGRAMMA. Rock Brake 



C. Stelleri (Gmel.) Prantl. (Pellaea gracilis Hook.). Slender Rock 

 Brake. Moist limestone rocks; occasional. Hartland, Quechee 

 Gulf, East Barnet and St. Johnsbury in eastern Vermont. 



CYSTOPTERIS. (FILIX). Bladder Fern 



C. buDjifera (L.) Bernh. Common Bladder Fern. Moist shaded ravines 

 aiid cliffs; frequent. 



C. frag'ilis (L.) Bernh. Fragile Bladder Fern. Rocky woods and 



ravines; common. 



DICKSONIA. (DENNSTAEDTIA) 



D. puuctilobula (Michx.) Gray. (D. pilosiuscula Willd.). Hay-scented 



Fern. Hilly pastures; common. Forma cristata (Maxon) Clute. 

 With the type; occasional. 



ONOCLEA 



0. seiisibilis L. Sensitive Fern. Moist places; common. Var. ob- 

 tiisilobata (Schkuhr) Torr. With type; occasional. 



0. Strutbioptei'is (L.) Hoffmann. (Matteuccia Struthiopteris [L.] 

 Todaro). Ostrich Fern. Rich alluvial soil; common. A form 

 similar to the var. obtusilobata of O. sensibilis has been found in 

 Dorset, (Mrs. E. H. Terry). 



PELLAEA. Cliff Brake 



P. atropurpurea (L.) Link. Purple Cliff Brake. Limestone cliffs; oc- 

 casional in western Vermont. Mt. Willoughby and Quechee Gulf 

 in eastern Vermont. Var. Bushii Mackenzie. Essex Junction, 

 (C. E. Faxon) ; Burlington, (Blake) ; West Haven, (Kirk). 



PHEGOPTERIS. (DRYOPTERIS). Beech Fern 



P. Dryopteris (L.) Fee. Oak Fern. Moist woods and swamps; com- 

 mon. 



P. hexagoiioptera (Michx.) Fee. Broad Beech Fern. Rich woods; oc- 

 casional. North in the Connecticut Valley to St. Johnsbury. 



P. polypodioides Fee. (D. Phegopteris [L.] C. Chr.). Long Beech Fern. 

 Damp woods; common. 



