GLOSSOrTERIS. 53 



been previously used by Dana. For the present this specimen is 

 best regarded as a frond of the type of G. Browniana. 



The fronds figured by Feistrnantel ' as G. intermittens do not 

 appear to be worthy of separate specific rank. Zeiller lias already 

 referred one of them to G. Browniana, and it seems to me that 

 possibly the others are indifferently preserved specimens of one 

 of the commoner Indian fronds. 



It may be also pointed out that the very small and imperfect 

 fragments figured by Feistrnantel 2 as types of a new species, 

 which he called G. ingens, are utterly woilhless as evidence even 

 for generic determination. Among the Australian fronds of 

 Glossopt.ris named specifically by Feistrnantel, there are several 

 which would seem to fall within the limits of G. Browniana as 

 denned here, if we bear in mind the great variations known to 

 occur among these fronds. G. Clarkei, Feist., 3 a leaf from Fix's 

 Creek, New South Wales, on the lower horizon of Glossopteris- 

 bearing rocks in that colony, with meshes very long next the 

 midrib, but much shorter towards the margin, appears to differ 

 only in this particular from the other linear forms included here 

 under that species. 



Glossopteris gangamopteroides, from the Newcastle Series of New 

 South Wales, is another of Feistmantel's species, 4 which, judging 

 from his description and figure, cannot be clearly distinguished 

 from G. Browniana. 



The fronds named by Feistrnantel 5 Glossopteris parallela, from 

 Bowenfels, New South Wales, may perhaps be also included as 

 large leaves of Glossopteris Browniana, on account of the general 

 similarity in the nervation. As Feistrnantel remarks, the secondary 

 nerves appear to be generally parallel, but this would seem to be 

 insufficient to warrant separation, since the same feature is sometimes 

 observed in undoubted fronds of the latter species. 



It is possible that if further and more complete specimens of this 



1 Feistrnantel (80), p. 99, pi. xxxiifA, figs. 2-4. 



2 Feistrnantel (80), p. 104, pi. xxxiA, figs. 4, 5. 



3 Feistrnantel (90), p. 123, pi. xiii, figs. 4, 4« ; cf. figure of G. Browniana, 

 ibid., pi. xvii, fig. 7. 



4 Feistrnantel (90), p. 125, pi. xx, fig. 4. 



5 Feistrnantel (90), p. 126, pi. xviii, figs. 2-4. 



