^\^ 



;''^'> rfW 





If 



I 1 



Portion of mature Frond— upper side. 



GYMNOaEAMMA RUFA. Desvaux. Moore. Smith. 

 Kaulfuss. Presl. 



PLATE. VI. 



Gymnogramme ntfa, 

 Neurogramma rufa, 

 JSfeurogramme rufa, 

 Gymnogramme acuminata, 

 Semionitis rufa, 



Hemionitis acuminata, 

 Pteris rufa, 

 Asplenium tomentosum, 



KUNZE. 



Link. 



Fee. 



Willdejstow. 



swartz. schktjhe. 



Humboldt and Bonpland. 



Sprengei,. Sloane. Stjensk. 



WiLLDENOW. 

 LlNNiEUS. 



Lamaeck. 



Gynnogramma — IS'aked writing. 



Rufa — 'Redi-haired. 



Gymnogramma rufa is an interesting species, more nearly 

 resembling Gymnogramma tomentosa than any other Fern, indeed 

 to a person not conversant with the distinctive differences of 

 the two species, would probably believe them to be the same 

 plant. The chief difference consists in the frond being pinnate 

 instead of bipinnate, and in the pinnse being rounded at the 

 apex instead of being acuminate, as is the case with G. tomentosa. 



It is a native of Mexico, and the tropical regions of America. 



The fronds vary from one to two feet in length, and are 

 thickly covered with hairs. The rachis and stipes are of a 

 brownish red colour, similar to G. tomentosa 



The sori are linear, medial, branched, oblique, and in the 



