10. 
Ir. 
12. 
. Areolae irregular, without free veinlets. 
UNDERWOOD: FERNS OF THE PHILIPPINES 679 
Pinnae continuous with the rachis ; texture firm, more or less coriaceous. 
POLYSTICHUM. 
Pinnae articulated with the rachis, easily caducous ; texture thin herbaceous. 
CYCLOPELTIS. 
PLEOCNEMIA. 
Areolae provided with free recurrent veinlets, SAGENIA, 
Areolae regular ; included veinlets straight, directed towards the margins of the seg- 
ments. CYRTOMIUM. 
Areolae irregular, fine ; included veinlets often branched and recurrent. TECTARIA. 
EGENOLFIA. 
POLYBOTRYA. 
STENOSEMIA. 
ANAPAUSIA, * 
Rootstock short. 
Rootstock widely climbing. 
Areolae few, without free included veinlets. 
Areolae copious, with free included veinlets. 
The disposition of these genera by Hooker and Baker and by 
Diels is so diverse that it can be best represented in tabular form : 
entre hi a a Number of _Equivalent genera Equivalent 
accepted Philippine in Die natiirlichen genera in 
species reported Pfhlanzenfamilien Synopsis Filicum 
Phegopteris 9 Nephrodium Polypodium 
Polystichum 9 Polystichum Aspidium 
Cyclopeltis I Cyclopeltis Aspidium 
Didymochlaena I Didymochlaena Didymochlaena 
Dryopteris 44 Nephrodium Nephrodium 
Cyclosorus 24 Nephrodium Nephrodium 
Goniopteris 6 Nephrodium Polypodium 
Meniscium 2 Nephrodium Meniscium 
Arcypteris 5 Nephrodium Nephredium 
Pleocnemia 5 Nephrodium Nephrodium 
Sagenia 9 Aspidium Nephrodium 
Cyrtomium I Polystichum Aspidium 
Tectaria 7 Aspidium Aspidium 
Egenolfia I Polybotrya Acrostichum 
Polybotrya 5 Polybotrya Acrostichum 
Stenosemia I Stenosemia Acrostichum 
Anapausia 12 Gymnopteris Acrostichum 
This tribe is represented in the Philippines by four nominal 
Species of Oleandra, the only genus in the tribe. 
Tribe 9. Oleandreae 
luster renders them peculiarly attractive among ferns. 
Tribe ro. 
Woodsteae 
Their satiny 
This tribe is represented in our eastern possessions only by 
one species of Diaca/pe. 
- 
*These have been usually placed in Gymmopteris, but that genus was monotypic 
_ 48 originally founded and based on a plant of a wholly different alliance. 
