Portion of young Frond— uppei- side. 



GYMNOGRAMMA MARTENSIL Bory. 



See Plate I. (Platk X., the true G. Chrysopbylla.J 



Gymnogramma Ilartensii. 

 Gymnogrmnma hyhrida, 

 Gymnogramme Martensii, 

 Ceropteris ITarUnHvi, 

 Ceropteria clirysophylla var Ilartensii, 



MOOEK AKD HoULSTOIv'^. 



Maetens. 



KUNZE. 



Fee. . 

 Link. 



Gymnogramma — leaked writing. Martensii — M. Martens, 

 a writer on Ferns. 



The present species, by the advice of several authorities 

 upon Ferns, has been separated from that of Gijninogrcmima 

 clirysophylla. When this work was commenced, I did not then 

 like to do otherwise than consider G. Martensii as a variety of 

 G. chrysopliylla, and as the latter form, (more commonly known 

 as G. chrysojihylla, true,) was not so universally cultivated as 

 the Fern G. Martensii, when the first Part of this work was 

 prepared for the press, I determined to figure the form which 

 is now to be considered as representing G. Martensii , not then 

 thinking it desirable to figure both of these Ferns. Lately I 

 have seen so many plants of the two forms G. chrysojyhylla 

 and G. Martensii, and the distinctive characters of each are so 

 constant in every instance, that I now willingly follow the 

 advice of several friends, and figure both species, it will there- 

 fore merely be requisite to reverse the plates, considering Plate 

 I. as G. Martensii, and Plate X. as G. clirysophylla. 



Link considered the present Fern a hybrid variety between 



