218 ASPLENIUM, § ATHYRIUM. 



straight or variously curved hippocrepiform membranace- 

 ous more or less fringed or erose at the margin. — Bern/i. 

 Schrad. N. Journ. Bot. 180G, i. pt. 2. p- 26. t. 2. /. 7 (sori). 

 Hook, et Am. Brit. Fl. ed. 7. p. 580. Mett. Fil. Hort. Lips. 

 ]i. 79. t. 13./. 15, 16 (pinna) and sori excellent). Asa Gray, 

 Man. Bot. N. U. St. p. 595. Nephrodium, Mich. Fl. Bor. 

 Am. ii. p. 268. Athyrium, Roth. Pr. Tent. Pterid. p. 98. 

 t.3.f. 5 (involucres straight). Moore, Brit. Ferns Nat. Print, 

 t. 30, 31, 32, 33, 34. Aspidium, Sw. Syn. Fil. p. 59. Schk. 

 Fil. p. 56. t. 58, 59. JJVld. Sp. PI. v. p. 276. En(/L Bot. 

 t. 1459. Polypodium, Linn. P. llhocticum, Linn. Herb. 

 P. molle, Schred. Athyrium, Roth. P. dentatum, P. in- 

 cisum, and P. oblongo-dentatum, Hojf'm. Athyrium ova- 

 turn, RotJi. A. laxum, Schum. A. latum, Gray. A. cy- 

 closorum, Rnpr. A. Athyrium, Spr. Schk. Fil. t. 78. Aspi- 

 dium asplenioides, Sw. Syn. Fil. p. 60. IVilld. Sp. PI. Pursh. 

 Fl. Am. ii. p. 664. Nephrodium asplenioides, Mich. Fl. Bor. 

 Am. ii. p. 268. Aspidium angustum, UVld. Sp. PI. p. 277- 

 Pursh, Fl. Am. ii. p. 661. Athyrium, Pr. A. Michauxii, 

 Spr. Kze. Athyrium asplenioides, Desy. Fee, Gen. p. IS6. 

 Moore, Ind. Fil. p. 179. Asplenium elatius, Link, Fil. Sp. 

 p. 94 {,fide Moore). Polypod. dentigerum, JVall. Cat. n. 334. 

 Athyrium tripinnatum, T^/^^r. [Jide Moore in Herb. Nostr. var. 

 broader and suljtripinnate). Allantodia tenella, JFall. MS. 

 in Herb. Nustr. (very slender and subcoriaceous). A. tenui- 

 frons, Wall. Cat. n. p. 206 (var. latifolium, and with soft, 

 white spinules on the upper side of the frond towards the 

 apices of the pinnae, on the rachis). Athyrium, Moore. 

 Allantodia denticulata. Wall. MS. in Herb. Nostr. Aspl. 

 strigihosum, Moore. Loive, Nat. Hist, of Ferns, v. t. 36. — 

 Var. latifolium ; pinnules broader. Hook, et Am. Athyrium 

 ovatum, Neivm. 



Hal). Throucliout Europe and Northern Asia. Himalaya, from the extreme 

 N. West to Bhotan, Wallich, Edgworth, Hook. fil. and Thomson, elev. 10-12,000 

 feet, Sfrachey and Winterbollom. Kaintschatka, Beechey. Japan and Manchuria 

 and Amur, C. Wright, Wilford. Crete, small specimen almost passing into Aspl. 

 Ilohenaekerianum, and the same form is sent hy Schimper, n. 1270 and 740, from 

 Abyssinia. Madeira, Lowe and others (a broad, deeply incised form). A. tenui- 

 folium, Lowe, MS. Canaries, Webb. Algeria, Rove. N. America (quite identical 

 with the European plant), Canada, Goldie, to N. Orleans, and westward to the Rocky 

 Mountains; and to Oregon and British Columbia (often tripinnate), Douglas. S. 

 America; Venezuela, Fendler, n. 405; Caracas, Linden, n. 518. Cnhn, Pa'ppig. 

 ^lexico, Galcotti, ». G425? — Considering the great geograjihical range of this 

 plant and its liability to sport and even to become monstrous, it is, with some 

 exceptions, jiretty easily recognized; yet, notwithstanding, botanists have encum- 

 bered even the IJritish plant with a host of synonyms, of which the careful Moore 



