THE FERNS OF NICARAGUA. 



I 9 I 



probably being the form which Foamier reports from Granada 

 as Ccroptcris serrata Fee. He also reports the type from 

 Chontales. Hemsley reports the species from Ometepe and 

 Virgin Bay. 



3. G. CALO.MELANOS Ztlf. TARTAREA L. Bo)ll. Ct C/i. 



Bom. et Ch., Fil., p. 236. 



Acrostichum tartareum L.,-S\vz„ Syn. Fil., pp. 15, 202. 



G.tarturea Desv.,— Pre~l, Rel. Haenk., p. 17; Presl, Tent. Pter., : - 

 p). ix, fig. 15: Lieb., Mex. Breg., p. 2>; Mett., Fil. Hort. Bot. Lip., p. 

 41; Eaton, Fil. Wr. et Fend., p. 200: Hook., Sp. Fil., vol. v, p. 14S: 

 Hook, and Bak., Syn. Fil., p. 3S4: Smith, Ferns, Br. and For., p. :::: 

 Hemsl., Biol. Cent. Am., vol. in, p. 679; Bak., Jour. Bot., vol. xxii, p. 

 364: Hitch., PI. Bah., p. 157 1 var. ornithoptc 



G. peruviana Desv., — Mett., Fil. Hort. Bot. Lip., p. 41. 



There seems to be no good reason for regarding this as 

 other than a variety of G. calomelanos, the characters upon 

 which the distinction is based being very variable. 



The specimens, which were collected on rocky banks near 

 Castillo and on the inner walls of the old fort, are almost 

 tvpical, though the lobes, etc.. are rather acute, and are made 

 apparentlv more so by the turning in of the edges. It was 

 found near Grevtown. and along the Deseado River. 



A series of rather immature specimens was also collected 

 along the sandv shores of Lake Nicaragua on Ometepe. 

 These are intermediate in division between tartarea and the 

 more compound calomclanos, and have rather acute teeth. 



The difference in texture seems to be due to surroundings. 

 Both forms \ i. c. calomelanos and tartarea \ are more coria- 

 ceous when growing in barren, exposed places. 



Reported from Granada by Hemsley. 



4. G. incisa Mart, ct Lind. PI. xx. Figs. 3-5. 



Hook., Sp. Fil., vol. v, p. 134: Hook, and Bak., Syn. Fil., p. 3S0. 



A single plant, collected near the lake-shore on Ometepe. 

 is in the collection. It has four fronds, only one of which 

 shows the configuration of the entire frond 1 Fig. 3 1, the others 

 being damaged at the apex. Because of insufficient material 

 and lack of named specimens for comparison, the identifica- 

 IV— 2 P 



