BOTANICAL SUEVEY— SUGAE GEOVE EEGION 307 



Dryopteris goldieana (Hook.) Gr. (Aspidium). Goldie's Shield-fern. Not common. 

 Dryopteris marginalis (L.) Gr. (Aspidiiun). Marginal Shield-fern. 

 Dryopteris spinulosa (Eetz.) Ktz. (Aspidium). Spinulose Shield-fern. 

 Dryopteris intermedia (Muhl.) Gr. (Aspidium). 

 Phegopteris phegopteris (L.) Und. (P. polypodioides Fee, Dryopteris). Long 



Beech-fern. 

 Phegopteris hexagonaptera (Mx.) Fee. (Dryopteris). Broad Beech-fern. 

 Filix bulbifera (L.) Und. (Cystopteris). Bulbous Bladder-fern. 

 Filix fragilis (L.) Und. (Cystopteris). Fragile Bladder-fern. 

 Woodsia obtusa (Spreng.) Torr. Obtuse Woodsia. 

 Dennstaedtia punctilobula (Mx.) Moore. (Dicksonia). Hay-scented fern. In 



this area never occurs in its customary habitat, but is limited to the faces of the 



cliffs. 

 Onocloea sensibilis L. Sensitive fern. 



Phylum, CALAMOPHYTA 



Class, EQUISETEAE, Horsetails and Scouring-rushes. 

 Equisetales. 

 Equisetaceae. 



Equisetum hyemale L. Common Scouring-rush. 



Equisetum praelitum Eaf (E. robustum A. Br.). Great Scouring-rush. 



Equisetum arvense L. Field Horsetail. 



Phylum, LEPIDOPHYTA 



Class, LYCOPODIEAE, Lycopods. 

 Lycopodiales. 

 Lycopodiaceae, Club-moss Family. 

 Lycopodium lucidulum Mx. Shining Cluli-moss. 

 Lycopodium porophilum, Lloyd & Underw. Eock Club-moss. Common on the cliffs. 



Easily separated from the last, but probably not distinct from it. 

 Lycopodium obscurum L. Ti'ee Club-moss. Only a few widely scattered clumps, 



mostly in the southern half of the area. 

 Lycopodium clavatum L. Common Club-moss. A few clumps in the canyon above 



the "Gulf." Not otherwise known for more than a hundred miles to the north- 

 ward. 

 Lycopodium eomplanatum L. Trailing ( 'liib-iiuiss. Not common; confined to the 



southern half of the area or at least very rare around Sugar Grove. 



None of the Lycopods are known to extend southwnrd or westward in Ohio 



beyond the present area. 



Class, SELAGINELLEAE, Selaginellas. 

 Selaginellales. 

 Selaginellaceae, Selaginella Family. 

 Selaginella rujjestris (L.) Spring. Eock Selaginella. Found only at Kettle Hills, 

 on the northern boundary of the area, and on a higli, bare knob soutli of Clear 

 Creek in section 20, Good Hope Twp. 



