666 GENERA OF FERNS. 
T. Hymenostecia, J. Sm. Sori furnished with a lateral 
indusium, which is more or less evident, or it is sometimes nearly 
calyciform. 
* Sori axillary. 
Examp. 1. A. australis, R. Br. 2. A. aspera, R. Br. 3. 
A. extensa, R. Br. 4. A. temulata, R. Br. 5. A. tenera, 
J. Sm. | 5. A. serrata, J. Sm. 
** Sort medial or basial. 
Examp. 7. A. Capensis, J. Sm.* (Hemitelia, R. Br. Presl.) 
8. A. multiflora, Presl. (Hemitelia, R. Br.) 9. A. levis, 
J. Sm. 10. A. strigosa, J. Sm. 
++ Tricnosrecia, J. Sm. Sori furnished with numerous 
articulated hairs, or sometimes naked. 
* Sori axillary. 
Examp. 11. A. glauca, Blume, (Polypodium contaminans, 
* Since the above was written, my attention has again been called to this 
subject by the circumstance of Mr. Gardner having, at page 438 of the present 
he 
genus, as distinct from its allies, is in the lower venules being anastomose, and 
he consequently « excludes Hemitelia Capensis and H. multiflora from the genus. 
These jos ien above as species of Alsophila; but h 
siders that they are n with the character of Alsophila, therefore 
he has deemed i jc to constitute of them a new genus, which he 
calls Amphi. mee By confining the technical character of 4/suphila to those 
species having forked veins and axillary sori, he may be justified in creating a 
new genus of these two, on account of their veins being simple with medial sori. 
But in my observations above, I have shown that the Sege being simple or 
forked, the sori axillary or ER with or without an indusium, are charac- 
it is difficult to decide to which group certain species belong; for if I had 
found the characters which I have given were decisive and constant, I might 
then be justified in constituting four (if not five?) separate genera upon the 
ophila, but which at present I cannot see 
the propriety of doing. 
