GENERAL REMARKS. 



369 



The terminal globular cell reminds one strongly of volvox. 

 If any part of the male flowers be capable of growth it is this ; 

 owing to their having highly developed green globules. And 

 this leads me to ask those who say that the anthers are 

 gemmae, did they ever see gemma without green globules ? 

 And what analogy have these with the gemma, known to be 

 such — of this order or of Hepaticfe. In these obscure ques- 

 tions, doubt between two organs as to which is concerned 

 immediately in reproduction will be solved by the test of their 

 universality, as in the general apperance of granular matters 

 adhering to the stigma. 



Plate CXIII. Fig. I. 



Illustrates the Sexual Apparatus of Cryptogramma 



1, 10. Male organs from first appearance to their full deve- 

 lopement — Long after they have performed their func- 

 tions. 4. Represents one at the time of puberty. 5. 10. 

 represent two in which distinct appearances of rupture 

 were seen. 

 1 1 . Apex of very young frond. 



13. Pinnula of a ditto, ditto, lower portion back surface. 



14. Ditto, ditto, under surface, in this all stages of deve- 

 lopement of males from time of appearance to time of 

 performance of function visible. 



Plate CXIII. Fig. II. 



Represents same phenomena in 



The resemblance of the males to ordinary hairs is at a 

 maximum, but still the same changes, except perhaps the 

 bursting, are to be traced as in Cryptogramma. 



It appears to me, that in such questions as these, we may 

 receive wonderful help from extending our views to the 

 animal kingdom, where the best structural plates would afford 

 hints as to analogies. And is not this tardiness of appearance 

 of the embryo, after fecundation, a direct analogy with that 



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