Filices.] FLORA OF TASMANIA. 153 
sporangia.—Pinnules linear-oblong, serrate, blunt. Capsules large. (Named in honour of Henry Julius Tode, of 
Mecklenburg, an eminent Mycologist.) 
l. Todea Africana (Willd. in Schrift. Acad. zu Erfurt, p. 14. t. 3. f. 1); frondibus bipinnatis 
coriaceis glabris, pinnulis confluentibus serratis inferioribus fructiferis. —Swartz, Syn. Fil. 162 ; Hook. Gen. 
Fil. t. 46 B; Fl. N. Zeal. ii. 48 et 338. Osmunda barbata, Br. Prodr. 163. O. barbara, Thunb. Prodr. 
171. (Gunn, 14, 1549.) (Tas. CLXVIIT.) | 
Has. Fringeing the banks of the Yorktown rivulet; abundant; scarce elsewhere, Guan; Recherche 
Bay, Oldfield.—(v. v.) 
Distriz. New South Wales, Victoria, New Zealand, South Africa. (Cultivated in England.) 
A noble Fern, with a caudex at times 5 feet high and 6-9 in circumference. Fronds sometimes 83 feet long. 
—PrarE CLXVIII. Fig. 1, capsules; 2, spores :—magnified. 
Tribe VII. OPHIOGLOSSEA.— Sori in stalked spikes or panicles. Capsules sessile, without a ring, 
globose, coriaceous, bursting transversely into two valves. 
Gen. XXIII. OPHIOGLOSSUM, Z. 
Capsule sessiles, globose, in spicam elongatam distiche biseriatim coadunate, coriacese, rima trans- 
versa dehiscentes. Spore minutissime, globoso-trigone.—Radix e fibris carnosis. Frons simplex, erecta, 
folium solitarium (rarius 2) simplex reticulatim nervosum gerens, in spicam elongatam pedunculatam desi- 
nens. 
A very curious genus, found in almost all latitudes to which Ferns extend. Upwards of thirty species have 
been made of it, many of which do not differ even as varieties from the common O. vulgatum of Europe, and most 
of them may, I think, be safely referred to that plant.—Root of long fleshy fibres, sometimes descending from a 
thickened base of the frond or tuberous rhizome. Frond simple, erect, 1 inch to a foot long, bearing one (rarely 
two) coriaceous, simple, linear or lanceolate or ovate, opaque or translucent leaf, with reticulate venation. Frue- 
tification a long flattened spike, which is shorter or longer than the leaf, and consists of two opposite rows, each 
of six to thirty globose capsules, cohering together and to a central axis, each bursting transversely. Spores very 
minute, rounded and trigonous. (Name from opus, a serpent, and yAwooa, a tongue.) 
1. Ophioglossum vulgatum (L.). 
Var. 8. costatum; fronde ovata v. lanceolata reticulatim venosa costata v. ecostata.—Fl. N. Zeal. ii. 
50. O. costatum, Br. Prodr. 163. (Gunn, 1552.) (TAB. CLXIX. A.) 
Haz. Var. 8. Common amongst grass: Formosa, Guun.— (v. v.) 
DisrRiB. Australia, New Zealand, and many other both tropical and temperate parts of the globe. 
Pate CLXIX. 4. Fig. 1, capsules; 2, spores :—magnified. 
Gen. XXIV. BOTRYCHIUM, ZL. 
Capsule globose, sessiles, distincte, in spicam di-trichotome divisam biseriatim dispositee, rima trans- 
versa dehiscentes. Spore trilobatee. — Radix subtuberosa, fibris crassis. Frons simplex, erecta, folium 
solitarium pinnatim v. bi-tripinnatim divisum gerens; venis pinnatis radiatisve, simplicibus v. furcatis. 
Spica pedunculata ; pedunculo e basi folii orto. 
A genus of few (perhaps only two) species, found in various temperate and tropical countries.—Root of very 
thick, fleshy fibres. Frond solitary, 3 inches to 2 feet high, of a very thick texture, consisting of one pinnate or 
bi-tripinnate or ternately decompound stipitate leaf, and a long, erect peduncle, bearing a deltoid or ovate, pinnate 
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