Filices.] FLORA OF TASMANIA. 147 
A very variable Fern, more coriaceous and generally less divided than 4. bulbiferum, of a paler colour, and with 
more often linear-elongate segments. 
$ ALLANTODIA.—Involuere membranous, arched, both margins attached to the vein, hence cylindrical. 
7. Asplenium (Allantodia) Brownii (J. Sm. Gen. Fil. et Bot. Mag. Suppl. lxxii. p. 30); fronde 
ampla membranacea deltoidea flaccida bi-tripinnata, pinnis lineari-oblongis acutis, pinnulis oblongo-lanceo- 
latis obtusis v. acuminatis profunde pinnatifidis, lobis oblongis obtusis integerrimis crenatis inciso-serratisve, 
rachibus glaberrimis flexuosis, stipite levi glabro v. basi subsquamato.—Hook. Ie. Pl. t. 978 ; Fl. N. Zeal. 
ii. 36. Athyrium australe, Presl, Pterid. p. 98; Fe, Gen. Fil. p. 186. Allantodia australis, Br. Prodr. 
p.149. (Gunn, 42, 1531.) 
Has. Not rare in dense shaded forests : Fingal and Circular Head, Gunn ; Huon River, J. D. H.— 
(v. v.) 
DisrnrB. New South Wales, New Zealand, Malay Islands. (Cultivated in England.) 
One of the most delicate and beautiful Ferns in Tasmania, and very similar to, if not identical with a species 
from the Society Islands, East Indies, and South America.—Fronds very membranous, flaccid, quite glabrous, 2-4 
feet high, broadly deltoid, spreading, bi-tripinnate. Primary pinne linear-oblong, acute or acuminate; secondary 
(or pinnules) 1-2 inches long, oblong-lanceolate, shortly stipitate, pinnatifid or pinnate; segments linear-oblong, 
blunt, crenate or inciso-serrate, rarely quite entire. Sori generally numerous, 1-2 lines long, nearer the costa 
than the margin. Rachis quite glabrous, slender, rather flexuous. Stipes long, smooth, glabrous, or scaly at the 
base.—Small specimens of this plant, growing in drier situations, have narrower fronds, not so membranous, and 
nearly entire lobes of the pinnules. 
Gen. XIV. DOODIA, Br. 
Sori lunulati v. lineares, 1-2-seriati, cost paralleli. Znvolucrum e ramulo anastomosante vene ortum, 
planum, intus liberum.—Frondes cespitose, rigidiuscule, duriuscule, pinnate. 
A small genus of Ferns, natives chiefly of the tropics and south temperate zone, being found in India, the 
Malay and Pacific Islands, and in Australia and Tasmania.—Fronds in D. caudata very harsh, coriaceous, erect, 
3-18 inches long, tufted, linear-lanceolate, pinnate, the apex often dilated or running out into a linear tail. Stipes 
short. Rachis glabrous or pubescent. Pinne 4—2 inches long, spreading; upper confluent or adnate by a broad 
base, linear-oblong or ovate-oblong, blunt; the lower smaller, shortly stipitate, cordate, truncate, rounded or sub- 
dilated at the base, sharply toothed, glabrous or pubescent below; the veins prominent when dry, forked, united 
by a transverse branch. Sori short, linear or crescent-shaped on the back of the pinne, forming one or two rows 
parallel to one another on each side of the costa. Znvolucre linear, placed on an arching veinlet that joins two 
veins, opening towards the costa. (Named in honour of S. Doody, an old author on English Cryptogamie Botany.) 
l. Doodia caudata (Br. Prodr. 151).— Hook. Exot. Flor. t.25; FI. N. Zeal. ii. 37. D. Kunthiana, 
Endl. Prodr. Fl. Ins. Norf. 11; Gaud. in Freyc. Voy. Bot. p. 401. t. 14. D. aspera, Br. Prodr. 151. 
(Gunn, 1.) 
Has. Abundant in dry, stony places, as well as in shaded situations.—(v. v.) 
DisrarB. Extratropical Australia, New Zealand. (Cultivated in England.) 
Gen. XV. POLYSTICHUM, Schott. 
Sori globosi, dorsales, medio venarum venularumgue inserti.  Jnvo/ucrum orbiculare, peltatim medio 
sori affixum, substipitatum, undique liberum.—Rhizoma breve v. elongatum. Frondes alterne v. caspilose, 
bi-tripinnate. 
