FERNS OF THE MALAY-ASIATIC REGION. 29 



1. Pinnules at least lobed, dimorphous. 



2. Veinlets simple - 8. G.dinwrpha 



2. Veinlets forked. 



3. Fertile pinnules " deeply crenate .' 9. G.fructuosa 



3. Fertile pinnules » not deeply crenate 10. C. mindanaensis 



1. Pinnules at least lobed, not dimorphous, lohes not twice as long as broad. 

 2. Indusium evident and persistent. 



3. Rachises clothed with copious hairy chart" 11. 0. philippinensis 



3. Rachises glabrous or bearing minute scales. 



4. Rachis unarmed 12. G.polypoda 



4. Rachis bearing spines or prickles. 



5. Squamulae lacerate 13. 0. Integra 



5. Squamulae bullate, not evidently lacerate 14. G.suluensis 



2. Indusium inconspicuous or wanting. 

 3. Axes black or purple. 

 4. Sori medial. 



5. Rachis of pinna glabrous 15. V. fonnosumi 



5. Rachis of pinna pubescent above 16. C. glabra {A.dubia) 



4. Sori costular. 



5. Pinnules pinnate 17. 0. atropurpurca 



5. Pinnules only lobed. 



G. Frond thin or subcoriaceous, green. 



7. Sori costular 18. 0. ramispina 



7. Sori medial 19- G.r'uUcyi 



6. Frond hard-coriaceous, brown when dry 20. G. recommutata 



3. Axes brown or stramineous. 



4. Segments separated by a rounded sinus. 



5. Wing narrow, veinlets simple 21. G. sangirensis 



5. Wing broad, veinlets mostly forked 22. G.obscvra 



4. Segments crowded or close together. 



5. Frond hardly 50 cm long 23. G. hancockii 



5. Frond 1 m or more in length. 

 6. Sori medial, 1 mm in diameter. 



7. Lamina glabrous 24. G. squamulata 



7. Lamina bearing white hairs beneath 25. G. margarethae 



(J. Sori costular, 0.25 mm in diameter 26. G. boninsimoisis 



1. Pinnules at least lobed, not dimorphous, lobes narrow. 

 2. Rachis black or purplish-black. 

 3. Indusium wanting, axes shining. 



4. Pinnules cut three-fourths to costa 27. C. henriji 



4. Pinnules cut to costa 28. G. mclanoraehis 



4. Pinnules " stalked 29. G.truncata 



3. Indusium evident, frond tripinnatitid 30. G.aneitenti* 



3. Indusium evident, frond tripinnate. axes dull. 



4. Rachis unarmed 46. G. sokizocMamya 



4. Rachis muricate. 



5. Pinnules " 6 mm long, sori medial 31. C. arachnoidea 



5. Pinnules" 12 mm long, sori costular - 32. G. tripivunta 



2. Rachis not nearly black. 



3. Rachis of frond or pinna bearing pubescence of two or more kinds mixed. 

 4. Rachis nodulose, pustulose or verrueote. 

 5. Pubescence all white or grew 



