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fern) or the brownish green of Dryoptcris cristata or the bluer 

 green oi D. clintoniana. 



It was noted that some of the characteristics by which ferns 

 can be identified may be lost in herbariuin specimens. A frond of 

 Osi}iit)ida ci)i)iainoiiica when placed beside one of O. claytoniana 

 was shown to be glossy and waxy looking in contrast to the dull 

 matt surface of claytoniana. In color both are a deep green in 

 shady locations and a warm yellowish green in the sunlight. Of 

 the spinulose group, Dryopteris campyloptera (broad leaf) showed 

 the warmest yellowish green and D. dilatata (western broad leaf) 

 the deepest green. These two ferns, similar as pressed specimens, 

 are in sharp contrast when seen growing together. 



Among the less common ferns were a group of Lygodium 

 pabnatuni with the fertile portions of the fronds nearly fully 

 developed, Thelypteris simidata, Anchistea virginica, Lorinscria 

 areolata with fertile fronds still green, Asplenimn ruta-muraria 

 var. cryptolepis, Phyllitis scolopendrium, in a shady "well-top" 

 of limestone, Woodsia ilvensis in several locations in the rock gar- 

 den, ChcUanthes lanosa in a fairly sunny position in the rock 

 garden where it has grown happily with increase for five or six 

 years, Polystichiim hraunii (this has shown itself a good fern for 

 the garden, several specimens brought from Greene County, N. Y., 

 as small plants five years ago are now much larger and finer than 

 when planted), Pcllaea atropurpurea, Camptosaurus rhizophyllus 

 (protected by wire screening to prevent uprooting by birds). A 

 specimen of Dryoptcris fioridana (ludoviciana) with its glossy 

 deep green, waxy looking fronds, planted in the garden a year 

 ago, came through the winter with only slight protection. 



Among the western ferns that have proved successful as garden 

 material are Lomaria (Blcchnuui) spicant from Oregon, said to 

 grow further north than any other fern, Athyrium alpestre var. 

 americaniim from Mt. Ranier, Atherium filix-femina (A. cyclo- 

 soriim), Dryoptcris nevadensis, D. dilatata, D. filix-mas from 

 Colorado, Polystichiim munitum, IVoodwardia fiuibriafa (IV. radi- 

 cans var. amcricana) the California giant chain fern, which has 

 gone through three winters protected with litter, and Cryptogramma 

 crispa var. acrostichoidcs (parsley fern). 



Dryopteris hybrids are well repesented and include D. cristata 

 X intermedia (bootii — in several forms from small to large plants 



