THE BRITISH FERNS. 
THE EUROPEAN BRISTLE FERN. 
TRICHOMANES RADICANS. 
T. fronds pellucid-membranaceous, ovate-lanceolate or triangular- 
ovate, tri-quadri-pinnatifid; the rachis everywhere, and the upper 
part or the whole of the stipes winged; ultimate segments linear, 
entire or obtusely bifid ; involucres cylindrical, scarcely two-lipped, 
solitary in the axils of the upper segments, more or less margined or 
winged ; rhizome long, creeping, tomentose. [Plate CVII A.] 
Er 
TRICHOMANES RADICANS, Swartz, Fl. Ind. Occ. ii. 1736 ; Id., Syn. Fil. 143. 
Willdenow, Sp. Plant. v. 513. Hooker, Sp. Fil. i. 125 (excl. syn. Hym. 
rupestre Raddi, and 7. anceps Wallich). Hooker & Arnott, Brit. Fl. 7 ed. 
591. Deakin, Florigr. Brit. iv. 119, fig. 1615. Babington, Man. Brit. Bot. 
4 ed. 428. Moore, Handb. Brit. Ferns, 8 ed. 255 ; Id., Ferns of Gt. Brit. 
Nature Printed, t. 48. Newman, Hist. Brit. Ferns, 3 ed. 283. Sowerby, 
Ferns of Gt. Brit. 72, t. 41. Bentham, Handb, Brit. Fl. 638. Sprengel, 
Syst. Veg. iv. 130. Presi, Hymenophyll. 16, t. 2 B. Nyman, Syll. Fl. 
Europ. 434. Lowe, Nat. Hist. Ferns, viii. t. 11. 
TRICHOMANES SPECIOSUM, Willdenow, Sp. Plant. v. 514. Sprengel, Syst. Veg. 
iv. 131. Presl, Hymenophyll. 16. Newman, Hist. Brit. Ferns, 2 ed. 305. 
TRICHOMANES EUROPAUM, Smith, Rees’ Oyclop. xxxvi. Art. Trichomanes. 
TRICHOMANES HIBERNICUM, Sprengel, Syst. Veg. iv. 130. 
TRICHOMANES BREVISETUM, R. Brown, Hort. Kew. 2 ed. v. 529. Smith, Eng. 
Fl. 2 ed. iv. 311. Presl, Hymenophyll. 16. Mackay, Fl. Hib. 344. 
TRICHOMANES ALATUM, R. Brown, Prod. Fl. Nov. Holl. 159, in obs. Hooker, 
Ft. Lond. iv. t. 53. 
TRICHOMANES PYXIDIFERUM, Hudson, Fl. Ang. 461. Bolton, Fil. Brit. 56, 
1.30, 
TRICHOMANES UMBROSUM, Wallich, Cat. 165. 
TRICHOMANES SCANDENS, Hedwig, Fil. Gen. with fig. (t. 6, excl. syn.) 
TRICHOMANES DIAPHANUM, Humboldt Bonpland et Kunth, Nov. Gen. Plant. i. 
25 ; according to Sprengel. 
HywENOPHYLLUM ALATUM, Smith, Eng. Bot. xx. t. 1417. Willdenow, Species 
Plant. v. 596. 
HYMENOPHYLLUM TUNBRIDGENSE, B. Smith, Fl. Brit. ii. 1142. 
DIDYMOGLOSSUM ALATUM, Desvaux, Prod. 381 (excl. syn. Schkr.). 
Var. Andrewsii: fronds lanceolate-ovate ; primary divisions 
narrow, and, as well as the secondary, distant; involucres immersed ; 
receptacles much elongated. [Plate CVII B.] 
TrICHOMANES RADICANS, v. ANDREWSIL, Moore, Handb. Brit. Ferns, 1 ed. 139; 
3 ed. 255; Id., Ferns of Gt. Brit. Nature Printed, t. 48 C. Newman, 
Hist. Brit. Ferns, 3 ed. 292, with figure. Babington, Man. Brit. Bot. 4 ed. 
428. Deakin, Florigr. Brit. iv. 120. 

