Osmunda.] 
FERNS. 
67 
TRICHOMANES BREVISETUM. 
SHOUT-STYLED BKISTLE-EERN. CUP GOLDILOCKS. 
(Plate VI, fig. 6.) 
Cha. — Leaf triangular, thrice or four times pinnatifid. Lobes 
linear, entire or bifid, obtuse. Leaf-stalk winged. Receptacles 
elongate cup-shaped. 
Syn. — Triehomanes brevisetum, Ilort. Kcw., Hook, in B. FI., Smith in 
E. FI., Mack . — Triehomanes alatum, Hook, in Flo. Lon. N. S., Sivz. 
(not of Willd.) — Triehomanes pyxidiferum, Fluds., Bolt., With., Hull. 
— Hymenophyllum alatum, Smith in E. B., FVilld. — Hymenophyllum 
Tunhridgense f3, Smith in FI. Br. — Triehomanes radicans, Hook, and 
Arnott, Bah., Moore, Newm. 
Fig. — E. B. 1417. — Bay, Syn. t. 3, f. 3. — Bolt. 30. — Flo. Lon. 53. — 
Newm. p. 283 (1854). 
Des. — Rootstock very thick, black, and densely hairy. Leaf-stalk 
smooth and winged all the way down. Leaf pellucid, membranous, 
dichotomously branched in all its parts, 6 to 12 inches high, dark 
green. Pinnae alternate, twelve or fourteen pairs, vertical, much cleft, 
lobes ultimately linear, but everywhere running much into each 
other, their veins conspicuous, prominent, and beautifully branched. 
Receptacles pitcher-shaped, taking the place of lobes, but not con- 
fined to those nearest the main stem, as in the last genus. 
/3 ( Andrexosii ). Leaf lanceolate, receptacles winged. 
Hab. — Near Killarney, in several situations, Mr. W. Wilson. Hermitage, 
in the county of Wicklow, Mr. Nuttall. Powerscourt Waterfall, Mr. Mackay. 
Once found in Ballinhasy Glen, near Cork, hy Mr. J. Drummond. Glendine, 
near Youghal, county of Cork, is another habitat for this plant, as discovered by 
Mr. Ball, of Dublin. It grows here in great luxuriance. 
Geo. — St. Domingo, Jamaica, the Carihbees, Madeira, &c. 
OSMUNDA, Linn. ROYAL FERN. 
( Osmund , Sax., strength ; this being the largest and strongest of our Ferns.) 
A, portion of a leaf of Osmunda regalis, natural size. B, mass of fruit 
magnified. C, theca separated. D, ditto splitting open. E, transverse section 
of the leaf -stalk. F, spores. G, epidermis of a pinnule. H, epidermis of the 
stalk. 
In this genus the upper part of the leaf becomes changed into a compound 
spike of fructification, without any indusium or receptacle. Osmunda is a small 
genus, the species of which very much resemble each other in size and character. 
They are natives of Europe and North America. 
