176 ASPLEMUM, § EUA8PLENIUM. 



glabrous flexuose or curved, frond ^-1 inch long subco- 

 riaceous flal)ellato-trifoliolate canescenti-pubescent linear- 

 oblong subpetiolate incised towards the apex, veins sunk 

 few forked nearly erect and parallel with the indistinct costa, 

 sori 4-6 or 8 linear oblong compact nearly parallel with the 

 costa and covering the whole under side of the piiinie, invo- 

 lucres very thin membranaceous (papery) erose at the margin. 

 Leihnhl, Flora, 1855. 81. p. 348. t. 15. Metten. Asplen. p. 

 142. Hook. 2nd Cent, of Ferns, t. 26. Acroptcris, i/e»/. A.yjl. 

 Europ. Var. yS, tridactylites, Bolle, MS. in Herb. Nostr. 

 (frond simple or tripartite). 



Hah. South Tyrol, near Salurn, in the clefts of calcareous rocks at the foot of 

 Mount Geier, Bartling, C. Bolle (and var. 0). Ainhezzo, JIausmatm, and dinner 

 and lluter {Ileiifer, 1. c.) ; (this being in S. Tyrol also, it is probably not far 

 from Salurn). A very distinct species, and assuredly the rarest and most cir- 

 ciimscribed in locality of any known European Fern. I am indebted to Dr. Chas. 

 Bolle, of Berlin, the able botanical explorer of the Canary Islands and of some of 

 the Cape de Verd Islands, for the specimens figured in the 2nd Century of Ferns. 

 The affinity of the plant is evidently with A. septentrionale and Garmaniciim. 



156. A. (Euasplenium) But a-miir aria, L. ; small, caudex 

 short very fibrous indistinctly paleaceous, stipites tufted 2-5 

 inches long slender green purple below, fronds subcoriaceous 

 about as long as the stipes deltoid bi-tripinnate, pinnules 

 obovate or cuneate (when young simple and reniform) obtuse 

 or truncated entire or cleft or incised at the apex, veins 

 flabellate dichotomous, sori linear crowded sometimes elon- 

 gated crowded, involucres broad erose at the margin. — Linn. 

 Sp. PL p. 1541. Sm. Engl. Bot. t. 150. Sw. Syn. Fil. p. 85. 

 Willd. Sp. PL V. p. 75. t. 80 B. Moore, Fil. Brit. Nat. Print, 

 t. 41 A. 31etten. Fil. Hort. Lips. p. 143. Asplen. p. 143. 

 A. murorum. Lam. A. murale, Bernh. Aspl. multicaule, 

 Pr. A. Matthioli, Gasp, et Guss. Scolopendrium, Roth. 

 Amesium, Neivm. Tarachia, Pr. 



Ilab. Throughout Europe, north and south ; North Asia, Kashmir and Thibet, 

 Thomson. Algeria, Munbi/. Ca.\K, Pappe and Katvson. N. America: Pennsyl- 

 vania, Virginia, and Kentucky {Herb. Nostr.). — The well-known " Wall-Rue''' is 

 a very variable Fern, of which Moore has enumerated ten states. The most 

 remarkable is the var. cuneatum, which approaches in the general form of its 

 pinnules so near the Aspl. Germanicum, that it has not unfrequently been mis- 

 taken for it. 



157. A. (Euasplenium) fissmn, Kit.; caudex small woody 

 creeping radiculose paleaceous with black subulate scales, 

 stipites tufted slender 2-3 inches long brown and glossy 

 below, fronds 2-4 inches high 3-4-i)innatc, piniue anil pin- 

 nules petiolatc divergcnti-patent, ultimate pinnules linear- 



