AN ENUMERATION OP CULTIVATED FERNS. 
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2. HUMATA, Cav. 
Rhizome surculose, slender, squamiferous. Fronds linear- 
lanceolate, entire, sinuose, pinnatifid or 
deltoid bipinnatifid, smooth, coriaceous. 
Veins simple or forked ; venules free, 
often thickened and clavate. Receptacles 
terminal, punctiform, on all or only on 
the anterior venules of each fascicle. 
Son marginal or anti-marginal. Indu- 
sium Sub-rotund Or reniform, coriaceous, Genus 2.— Portion of fertile 
interiorly attached by its base only, f r ° nd — under Slde - No - >• 
shorter or equal with the margin, and forming with it a bila- 
biate vertical or sometimes oblique cyst. 
1. H. heterophylla, J. Sm. ; Hook. et Bauer, Gen. Fil. 1. 114. 
Humata ophioglossa, Cav. Humata pinnatifida, Cav. 
Davallia heterophylla, Hook, et Grev. Ic. Fil. t. 230 ; 
Hoolc. Fil. Exot. t. 27 ; Lowe's Ferns, 8, 1. 19 ; Hook. 
Sp. Fil. 1, /. 152. — Malayan Archipelago. 
2. H. pedata, J. Sm. Davallia pedata, Sm. ; Hook. Sp. Fil. 1, 
t. 45 A ; Hook. Gard. Ferns, t. 7. Pachypleura 
pedata, Presl . — Malayan Archipelago. 
3. H. Cuxningii, J. Sm. Davallia Cumingii, Hook. Sp. Fil. 
1, t. 45 B . — Philippine Islands, Ceylon. 
3. DAVALLIA, Sm. 
Rhizome surculose creeping, or sub-erect and sub-frutescent. 
Fronds generally 
deltoid, pinnate, 
bi-tripinnate, or 
multifid, smooth, 
often coriaceous. 
Veins forked; 
venules free, the 
fertile ones often 
t ery short. Re- Genus 3. — Pinnule of fertile frond — under side. No. 7 . 
ceptacles puncti- 
form, terminal. Sori sub-rotund or vertically oblong, marginal. 
Indusium scariose, its sides adnate, forming an urceolate or 
tubular vertical cyst, open exteriorly. 
