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4 5 LASTREA, (Bory., 1824, (mutat) Presl 1836.
Arsenopteris, Webb et B. (pt.) 1847.
Gymnothalamimn, Zenker : MS. Kze. 1851.
Hemestheum, Newm. 1851.
Lophodium, Newm. 1851.
Camptodium, Fée 1851,
Ooclilamys, Fèe 1851.
Pachyderris, J . Sm. MS. (1854).
Pycnopteris, Moore, 1854.
Dryopteris, Adamson, 1763 : Schott, 1834.
Gleichenia, Necker, 1790,
Aspidium, Sw. (pt.) 1800.
Neplirodium, Rieh, (pt.) 1803.
Arthrobotrys, Wall. 1828.
Thelypteris, Schott, 1884.
Hypodematium, Kze. 1837.
Amauropelta, Kze. 1840.
Dichasium, A. Br. 1841.
Lastreastnom, Presl. 1849.
1 1 Veins parallel forked, Soi'iferous at or near the base ; fronds simple, articulated.
4 6 OLEASDEA, Cob. 1602.
Neuronia, Don. 1825.
Ophiopteris, Eeinw, 1825.
t J t Veins pinnately forked, soriferoxis at their apices ; fronds pinnate, the pinnce articulated.
4 7 NEPEOLEPIS, Schott, 1834.
Nephi-odium, Link. 1841.
Lepidoneuron, Fèe, 1851.
§ 17. CTSTOPTERIDE^.
(a) Sori termhial, rarely aanllary in the forks o f the venules ; fronds membranaceous or herbaceous.
4 8 AOEOPHOKUS, Preti. 1836.
Lencostegia, Pi-eal. 1836.
Odontoloma, J. Sm. 1842.
(i>) Sori teiminal vertical, rarely subterminal and oblique, fronds small, coriaceous.
4 9 HUllATA, Cau. 1801.
Pachypleuria, Presl. 1836.
Pteroneiiron, Fèe 1851.
§ 18. DAVALLIEiE.
(a) Sori intramarginal ; indusium aemi-orbicular, or half cup shaped membranaceotis.
5 0 MICKOLEPIA, Fred. 1836.
Scyphofilix, Aub. du Petit. Thouars, 1811.
la, Klfs. 1820.
Nem-opteris, Desv. 1827.
Selenidium, Kze. 1837.
Tapeiuidium, Pre,sl. 1849.
5 1
membranaceous.
Indusium tubulose, or cup
DAVALLIA, Smith, 1793.
Wibelia, Beruh. 1800.
Steuolobus, Presi. 1836.
Colposoria, Presi. 1836.
Odontosoria, Presi. 1836. Fèe 1851.
Parestia, Presl. 1849.
Stenoloma, Fèe 1851.
Scyphularia, Fèe 1851.
(a) Sori immersed in a short xnargiiial cyst, the indusium sub-coriaceous, continuous with and
substance of the frond.
5 2 PROSAPTIA, Presl. 1836.
§ 19. PER.VNEMEÆ.
(tt) Veins free.
* Involucres stalked.
PERANEMA, Don. 1825.
Spbaeropteris, Wall. MS. 1828.
R.Br. 1830.
scarcely different from the
Podielema, R. Br. MS. (1830.)
Nematopera, Kze. 1845.
Order POLYPODIACEÆ. Tribe CYATHEINEÆ.
§ I. CYATHEÆ.
iff) Involucres complete cup shaped.
5 3 CYATHEA, Smith, 1793.
Sphaeropteiis, Eernb. 1800.
DLsphenia, Presl. 1836.
§ 2. ALSOPHILEÆ,
(o) Veins always uni-soriferous.
5 4 ALSOPHILA, R. Br. 1810.
Trichoi>teris, Presl. 1822.
Chnoophora, Klfs. 1824.
Gymuosphaera, BI. 1828.
Dicrauoplilebia, Mart. 1828-34.
Haplophlebia Mart. 1828-34.
Order POLYPODIACEÆ. Txibe GLEIOHENINEÆ.
(a) Froxids dichotomously branched, (rarely unbranched,) the branches pinnatifid.
5 5 GLEICHENIA, Smith 1723.
Mertensia, Willd, 1804.
Decranopteris, Bevnh. 1806.
Calymolla, Presi. 1836.
Notocarpia, Presl. 1836.
Schizocaena, J . Sm. 1838.
J. Sm. pt. 1842.
Ti'iohostegia, J. Sm. 1842.
Dichorexia, Presl. 1847.
Lophosoria, Presl. 1847.
Trichosorus, Liebm. 1848.
Sticherus, Presl. 1836.
Hicriopteris, Presl. 1849.
Gleicheuiastrum, Presl. 1847.
Order POLYPODIACEÆ. Tribe TRICHOMANINEÆ.
(a) ' Involucres xim-Shaped or tubular.
Veins free.
t Receptacles exerted, beaxing Sessile lenticular Spote-cases at thmr base; froxids pellucid.
X Fx'onds xxionomorphous.
TRTCHOMANES, Lin. 1742.
Aohomanes, Necker, 1790.
Didymoglossum, Dev. 1827.
Lecaiiium, Presi. 1843.
Cardiomaues, Presl. 1843.
Microgonium, Presl. 1843.
Abiodictyum, Presl. 1843.
Homoeotes, Presl. 1847,
Macroglena, Presl. 1847.