AN ENUMEBATION OF CULTIVATED FEKNS. 



75 



2. HUMATA, Cam. 



Rlmome suvculose, 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. 

 Sori marginal or anti-marginal. Indu- 

 siwm sub-rotund or reniform, coriaceous, Genus 2.— Portion of fertile 

 interiorly attached by its base only, frond-underside. No. 1. 

 shorter or equal with the margin, and forming with it a bila- 

 biate vertical or sometimes oblique cyst. 



1. H. heterophylla, /. 8m. ; Hoolc. et Bauer, Gen. Fil. t. 114. 



Humata ophioglossa, Gav. Humata pinnatifida, Can. 

 Davallia heterophylla, Hoolc. 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, /. 8m. Davallia pedata, 8m. ; Hooh. Sp. Fil. 1, 



t. -15 A ; Hoolc. Gard. Ferns, t. 7. Pachypleura 

 pedata, Presl. — Malayan Archipelago. 



3. H. Cumingii, J. 8m. Davallia Oumingii, Hoolc. Sp. Fil. 



1, t. 45 B. — Philippine Islacds, Ceylon. 



3. DAVALLIA, 8m. 



Rhizome surculose creeping, or sub-erect and sub-frutescsut. 

 Fronds generally 

 deltoid, pinnate, 

 bi-tripinnate, or 

 multifid, smooth, 

 often coriaceous. 

 Veins forked; 

 venules free, the 

 fertile ones often 

 very short. Re- 

 ceptacles puncti- 

 form, terminal. Sori sub-rotund or vertically oblong, marginal. 

 Indusiwm scariose, its sides adnate, forming an nrceolate or 

 tubular vertical cyst, open exteriorly. 



Genus 3. — Pinnule of fertile frond — under side. No. 7. 



