GRAMMITIS. 



609 



the genuine species of Gymnogramma, but differs from all 

 these, as well as from every other ? Fern except Cyathea 

 in the situation of the sori. 



Sori rotundi in venularum furcse insidentes (Indusium 

 nullum) receptaculo communa elevato. 



Ceterach. PI. CXXXIV. Fig. I. 



1. Pinna very young, viewed on its inner face quoad ver- 

 nation, shews the difference in the ramenta, and the 

 real scales; some of each removed where the green is 

 represented visible. 



2. Another Pinna, opposite face, or that which is afterwards 

 the upper surface ; the inflexion of the anthers most 

 marked, as well as their change of direction after the 

 functions are performed, scales not represented. 



3. Young anther. 



4. 5, 6, 7, 8, 9, 10. Anthers or ramenta, in various stages 

 6, 7. seemed open : 10 is meant to contrast with the 



ends of the real scales. 13, 14. 

 11, 12. Young scales, their difference in structure so far 

 as concerns terminal cells, most marked. It. notes p. 326 

 no. 10. 



Grammitis Adiantoides. PI. CXXXIV. Fig II. 



1. Plant natural size. 



2. Base of axis ; a, base of stalk of reniform frond ; b> base 

 of pinnate do. ; c, male organs ; d > young fronds. ; e> 

 radicles. 



3. Radicle portion of surface, shewing the confervoid nature 



of the finer radicells. 



4. Young frond, surrounded by the male organs. 



4. a,, male organ ? detached. 



5. Reniform frond, occasionally sterile. 



6. Pinna of other frond. 

 6.a. J ditto enlarged. 



7. Capsule. 7a sporule. 



4 D 



