FHRNS Sl'ITAIlLH FOR THI- AOIATIC CARDI-X. 109 



As[>lcniiim ncnistkhoiilcs. (Silvery Spleen wort). One to twcj feet hioh. 

 Fronds nearly twiee pinnate, in a eircle from a short rootstoek. Rieh woods 

 in leaf mold. 



A. ang-ustifoliiini. (Narrow-leaved vSplecnwort). One to three feet high. 

 Pinnate; fronds very thin, the fertile somewhat narrower than the sterile. 

 In shade only. Found in damp ricli woods. Fronds in a eircle in early 

 summer. 



.4. fiUx-foemina. (Lady fern). Six inches to five feet. Twice pinnate; 

 sometimes nearly thrice pinnatifid. Grows in clumps sending up fronds in 

 early summer. Prefers rich open woods, but thrives in damp places in 

 sunlight. 



Cystoptcris fmgilix. (Fragile Bladder Fern). Fronds in clumps five to twelve 

 inches high. Twice or thrice pinnate. Fronds fragile, produced during spring 

 and early summer. Damp soil in rich earth, will stand some sun. 



Dicksonia punctilobula. (Hay-scented Fern, Mountain Fern, Sweet Fern). 

 Two to three feet long, from slender rootstocks that creep extensively. Fronds 

 tri-pinnatifid, sweet-scented when crushed. Usually found in upland rocky 

 woods and pastures. Grows well in leaf mold. 



Dryopteris acrostichoides. (Christmas Fern). Evergreen. One to two and 

 one-half feet long. Fronds thick, produced in a circle from a short thick root 

 stock early in spring. Once pinnate. In damp shade in nearly any soil. Fronds 

 used for Christmas decorations. 



D. cristata. (Crested Shield Fern). One to three and one-half feet long. 

 Fronds narrow and erect, in circles from a short rootstoek. Pinnate, the pinna; 

 pinnatifid. Grows naturally in swamps and damp open woods. 



D. c. Clintoniana. Is a larger form of the above. 



D. Goldieana. (Goldie's Shield Fern). Two to four feet high. Fronds 

 ovate, nearly thrice pinnatifid; from a short rootstoek in circles in early 

 summer. Deep shade in very rich leaf mold. A magnificent species. 



D. marginalis. (Marginal Shield Fern). One to three feet high. Fronds in 

 spring from a short, erect, rootstoek ; twice pinnate. Fronds in circles. Will 

 stand some sun, but prefers shade, and will grow in almost any soil. Nearly 

 evergreen. 



D. novehoraccnsis. (New York Fern). Thin and delicate. One to three feet 

 high. Nearly twice ])innate. Deep shade in rich earth. Foliage fragrant 

 when crushed. Fronds in early summer. 



D. spitiiilosa and its varieties intermedia and dilatata. (Spinulose or Bristly 

 Shield Fern). One to three feet high. In circular crowns from a short, erect 

 rootstoek. Fronds produced in spring; about thrice pinnate, the pinnules 

 tipped with bristles. Rich woodlands. Nearly evergreen. 



D. Bootlii. Resembles the preceding. 



D. Thclypteris. (Lady Fern. Marsh Shield Fern). One to three feet high. 

 Bi-pinnatifid, produced from running rootstocks nearly all summer. Grows in 



