AN ENUMERATION OF CULTIVATED FERNS. 
77 
4. LEUCOSTEGIA, Presl. 
Rhizome thick, short, surculose, sometimes 
Fronds deltoid, tripinnatifid, or 
multifid, sometimes lanceolate 
and bipinnatifid. Veins forked ; 
venules free, the anterior ones 
often very short. Receptacles 
terminal, superficial, or immersed 
on the exterior venules. Sori 
round. Indusium sub-reniform, 
oblong, or nearly orbicular, 
plane, interiorly attached by its 
broad base, equal with or shorter 
than the margin, thin, scariose. 
nypogmous. 
Genus 4. — Fertile pinna. 
* Rhizome epigeeous squamose. 
1. L. hirsuta, J. Sm. En. Fil. Philipp. Microlepia hirsuta, 
Moore. Davallia ciliata. Hook. Sp. Fil. 1, 184, t. 
60 A. — Luzon. 
2 L. Borneensis, J. Sm.; Hephrodium (Lastrea) Borneense, 
Hook. Sp.Fil. 4, p. Ill; nook. Ic. PI. t. 993. — Borneo. 
3. L. parvula, J. Sm. Davallia parvula. Wall. ; Hook ct 
Grev. Ic. Fil.f. 138. — Malayan Islands, Singapore. 
4. L. pulchra, J. Sm. Davallia pulchra, D. Don. Acro- 
phorus pulchra, Moore Ind. Fil. (excl. syn. Davallia 
chserophylla) .—Is epal. 
5. L. chserophylla, J. Sm. Davallia chaerophylla, Wall. ; 
Hook. Sp. Fil. 1, 157, t. 51 A. Acrophorus chacro- 
phyllus, Moore. Humata chserophylla, Mcltin. Fil. 
Hort. Dips. t. 27, /. 9, 10. — East Indies. T. 
6. L.. affinis, J. Sm. Davallia affinis, Hook. Sp. Fil. 1, 158, 
t. 52 B. Acrophorus affinis, Moore. Humata 
affinis, Mett. Fil. Hort. Dips. t. 27, /. 5, 6. — Ceylon, 
Singapore, Philippine Islands. 
* # Rhizome liypogceous. Fronds deciduous. 
7. L. immersa, Presl. ; J. Sm. ; Hook. Gen. Fil. t. 52 A. 
Davallia immersa, Wall. ; Hook. Fil. Exot. t. 79. 
Acrophorus immersus, Moore. Humata immersa 
Hhettin. — East Indies. 
