AN ENUMERATION OF CULTIVATED FERNS. 77 



4. LEUCOSTEGIA, Presl 



Rhizome thick, short, surculose, sometimes hypogaeous. 

 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. ^11 



\r^ ,- 



Genus 4. -Barren pinna. 

 * Rhizome epigceous eguamose. 



1. L. hirsuta, /. Sm. En. Fil. Philipp. Microlepia hirsuta, 

 Moore. Davallia ciliata, Hook. Sp. Fil. 1, 184, L 

 60 A. Luzon. 



2 L. Borneensis, /. Sm. ; Nephrodium (Lastrea) Borneense, 

 Hook. Sp. Fil. 4, p. Ill; Hook. Ic. PL t. 993. Borneo. 



3. L. parvula, /. Sm. Davallia parvula, Wall. ; Hook et 



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) . Nepal. 



5. L. chserophylla, J". Sm. Davallia chaerophylla, Wall; 



Hook. Sp. Fil. 1, 157, t. 51 A. Acrophorus chaero- 

 phyllus, Moore. Humata chaerophylla, Mettin. Fil. 

 Hort. Lips. t. 27, /. 9, 10. East Indies. T. 



6. L. afimis, /. 8m. Davallia affinisj Hook. Sp. Fil. 1, 158, 



t. 52 B. Acrophorus amnis, Moore. Humata 

 affinis, Mett. Fil. Hort. Lips. t. 27, /. 5, 6. Ceylon, 

 Singapore, Philippine Islands. 



** Rhizome Jiypogceous. 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 

 Mettin. East Indies. 



