TAB. LXXL 



Gbammitis (Loxogramme) Salvinii, Hook. 



Caudice repente squamoso radicibusque fusco-tomentosis, 

 frondibus remotis subspithamaeis submembranaceis herba- 

 ceis lanceolatis basi late attenuates sessilibus costatis linea- 

 que centrali pallida, sorb versus apicem biserialibus cos- 

 tamque approximatis erecto-patentibus linearibus oblon- 

 gisve. 



Hab. Vera Paz, Guatemala, elev. 3500 to 5000 feet, Osbert 

 Salvin, Esq. 



In color, texture, and a good deal in form, this Fern has a 

 very considerable affinity with our Antrophyum Galeottii 

 (Tab. 70) ; but there are characters present too important to 

 allow the two to be considered identical, whether in respect 

 to species or even Genus. The form is different, exactly 

 lanceolate not at all approaching to lorate (strap-shaped) the 

 texture is much more pellucid so that the venation is readily 

 distinguishable (which is so indistinct in the Antrophyum as 

 to have escaped the notice of some authors.) We have 

 already, in describing the Antrophyum Galeottii, spoken of 

 the frequent presence of short linear or oblong sori in series, 

 as in Grammitis : but such are always nearer the margin than 

 the costa, and invariably mixed with branched, if not anas- 

 tomosing sori; here, on the other hand, the sori are placed 

 nearer the costa than the margin, with great regularity ; and 

 though varying in length, always undivided, everything 

 indeed indicating the section Loxogramme of the Genus 

 Grammitis. This species we name in compliment to Osbert 

 Salvin, Esq., who allowed us to share in a beautiful collection 

 of Ferns he lately collected in Guatemala and Mexico. 



Tab. LXXL Fertile plant of Grammitis Salvinii, Hook. : 

 natural size. Fig. 1 . Portion of a fertile frond, with a linear 

 sorus. f. 2. Portion of fertile frond, with an oblong sorus ; — 

 magnified. 



Cent, 2. 1, 71. 



