THE RUE-LEAVED SPLEENWORT. 
THE RUE-LEAVED SPLEENWORT, or WALL RUE. 
ASPLENIUM RUTA-MURARIA. 
A. fronds deltoid, bi-tri-pinnate; pinnules obovate, or rhomboidal, 
wedge-shaped and entire at the base, acute rounded or truncate and ` 
toothed at the apex; sori linear, crowded, central: indusium crenu- 
late. [Plate LXXVIII.] 
ASPLENIUM RUTA-MURARIA, Linneus, Sp. Plant. 1541. Bolton, Fil. Brit. 28, 
t. 16. Smith, Eng. Bot. iii. t. 150; Id., Eng. Fl. 2 ed. iv. 296. Hooker, 
Gen. Fil. t. 30. Hooker & Arnott, Brit. Fl. 7 ed. 588. Babington, Man. 
Brit. Bot. 4 ed. 426. Deakin, Florigr. Brit. iv. 75, fig. 1596. Bentham, 
Handb. Brit, Fl. 633. Lowe, Nat. Hist. Ferns, v. t. 27. Newman, Hist. 
Brit. Ferns, 2 ed. 261. Moore, Handb. Brit. Ferns, 3 ed. 188; Id., Ferns 
of Gt. Brit. Nature Printed, t. 41 A; Id., Ind. Fil. 163. Sowerby, Ferns of 
Gt. Brit. 55, t. 32. Willdenow, Sp. Plant. v. 341. Schkuhr, Krypt. Gew. 
75, t. 80b. Sprengel, Syst. Veg. iv. 88 (excl. syn. Kitaibel). Presl, Tent. 
Pterid. 108. Link, Fil. Sp. 97. Fee, Gen. Fil. 190. Gray, Bot. North. 
United States, 627. Koch, Syn. 2 ed. 983. Fries, Sum. Veg. 82. Ledebour, 
Fl. Ross. iv. 520. Fl. Dam. t. 190. Svensk Bot. t. 306. Mettenius, Fil. 
Hort. Bot. Lips. 77 ; Id., Aspl. 148. Heufler, Aspl. Europ. 95. Nyman, 
Syll. Fl. Eur. 432. 
ASPLENIUM MATTHIOLI, Gasparrini, Notul. piante Lucan. 2 ; Id., Guss. Fl. Sic. 
Syn. 663. 
ASPLENIUM MURALE, Bernhardi, Schrad. Journ. Bot. 1799, i. 312 ; 1801, i. 19. 
Salisbury, Prod. 403. Gray, Nat. Arr. Brit. Pl. ii. 14. Stokes, Bot. Mat. 
Med. iv. 610. 
ASPLENIUM MURORUM, Lamarck, Fl. Franç. i. 28. 
ASPLENIUM PYGMJUEUM, Linnæus fil. 
ADIANTUM PYGMÆUM, Linnœus MS. in Herb. 
ACROSTICHUM RUTA-MURARIA, Lamarck, Illustr. t. 865, fig. 1. 
AMESIUM RUTA-MURARIA, Newman, Hist. Brit. Ferns, 2 ed. 10 ; 3 ed. 254 ; Id., 
Phytol. 1851, App. viii. 2 
PHYLLITIS RUTA-MURARIA, Mench, Method. 724. 
SCOLOPENDRIUM RUTA-MURARIA, Roth, Fl. Germ. iii. 52. 
TARACHIA RUTA-MURARIA, Presl, Epim. Bot. 81. 


Caudex short, tufted, scaly. Scales small, very dark brown, 
narrow lanceolate, striato-reticulate. . Fibres numerous, dark- 
coloured, wiry, branched. 
Vernation circinate. 
Stipes as long as, or longer than the frond, smooth, dark purple at 

