. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 13. Botany; Botany. American Fern Journal Volume 25, Plate 12. Fig. 1.âPellaea densa at its southeastern limit, Black Lake, Quebec. m ^ ^ -'^^^ ' ^ â «ii ^.V WLx o^ JL â .id -7 . \ -W if' â¢-⢠« â Ik^^^ ' - f Fig. 2.âAsplenium resiliens at its northeastern limit, Franklin Co., Pennsylvania. Fern Field Notes 125 tain, about 5 miles northwest of Blairstown, Warren County, New Jersey, in the hope of rediscovering Asplen- ium TrudelU, collected there by Carhart many years ago. A
. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 13. Botany; Botany. American Fern Journal Volume 25, Plate 12. Fig. 1.âPellaea densa at its southeastern limit, Black Lake, Quebec. m ^ ^ -'^^^ ' ^ â «ii ^.V WLx o^ JL â .id -7 . \ -W if' â¢-⢠« â Ik^^^ ' - f Fig. 2.âAsplenium resiliens at its northeastern limit, Franklin Co., Pennsylvania. Fern Field Notes 125 tain, about 5 miles northwest of Blairstown, Warren County, New Jersey, in the hope of rediscovering Asplen- ium TrudelU, collected there by Carhart many years ago. Asplenium montanum was found in abundance, several miles east of its previously known colonies near Delaware Water Gap, but A. TrudelU eluded us. Then just as we were about to leave, a single plant of A. Brad- leyi, not previously reported from the state, was noticed in a vertical joint-crevice in the quartzite cliff. Five months later the place was revisited, in company with IMr. Harry W. Trudell, and the cliff was more fully explored. Not only were six additional plants of this species found. in other joint-crevices, but also a colony of the hybrid A. Bradleyi x montanum. The station is 40 miles, as the spore blows, east of the nearest known Pennsylvania occurrence of A. Bradleyi at Glen Onoko, Carbon County, and about 75 miles southwest of the long-lost colony in the Shawangunk Mountains in Ulster County, New York. Asplenium resiliens in Pennsylvania.âEver since the finding of the black-stem spleenwort in Maryland last year I have cherished the hope of extending its range still farther north, and on September 12 made a systematic search for it. In the main limestone valley around Green- castle there seemed to be no cliffs of sufficient size to fur- nish a favorable habitat for it, but in a narrower strip of limestone east of Mercersburg several promising cliffs were located and searched, one after another. Although the only abundant fern of this group was A. tri
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