UNDERWOOD: REVIEW OF THE GENERA OF FERNS 273 
I. Ophiala (195) based on O. Zeylanica (Osmunda Zeylanica L.). 
2. Platycerium (213) based on P. alcicorne and three other 
species. 
3. Micropteris (217) based on M. blechnoides (Blechnum semi- 
nudum Willd.), M. serrulata, M. orientalis Desv. and M. pectinata 
Desv. 
4. Polytaenium (218) based on P. lanceolatum ( Hemionitis lineata 
Wz.). 
5. Pteropsis (218) based on P. nummularia (Aerostichum hetero- 
Phyllum L.) and nine other species. 
6. Sitobolium (263) based on S. punctilobum (Nephrodium 
punctilobum Michx.). 
7. Phorolobus (291) based on P. crispus (Osmunda crispa L.) 
and four other species. 
8. Purcaria (292) based on F. thalictrotdes (Acrostichum thalic- 
troides L.) and F. cornuta (Pteris cornuta Beauv.). 
9. Neuropteris (292) based on VN. elegans Desv. from British 
Guiana. 
Io. Didymoglossum (330) based on Trichomanes muscoides and 
seven others. 
II. Amphoradenium (335) substituted for Adenophorus Gaud. 
and based on A. Gaudichaudii ( Adenophorus tripinnatifida Gaud.). 
1828 
Blume (Enum. Pl. Jav. 2 :)* established the following genera : 
I. Lecanopteris (120) based on L. carnosa from the Moluccas; 2. 
Stenogramma (172) based on S. aspidioides ; 3. Arachnoides (241) 
based on A. aspidioides ; 4. Diacalpe (241) based on D. aspidioides ; 
5. Gymnosphaera (242) based on G. glabra and G. squamulata; 6. 
Kaulfussia (260) based on K. aesculifolia. Paragramma (119) and 
Diagramma (118) were also published as subgenera of Grammitis. 
1828 
Hocker and Greville (Icones Filicum, 77. 754) established the 
genus Deparia based on Deparia Macraei from Owhyhee (Hawaii). 
* A revised edition was issued in 1830 apparently with the same pagination, 
