162 NATURAL HISTORY BULLETIN. 



Quite common on rocky banks of a small stream in deep 

 woods near Castillo. 



Reported by Hooker and Hemsley from Realejo. 



9. A. pumilum Szuartz. PL xv, Fig. 6. 



Swz., FI. Ind. Occ, p. j6io; Swz., Syn. Fil., p. 76; Lieb., Mex. Breg., p. 95; 

 Mett., Fil. Hort. Bot. Lip., p. 75; Mett., Ub. Ein. Farng., pt. vi, p. 127; 

 Eaton, Fil. Wr. et Fend., p. 206; Hook., Sp. Fil., vol. in, p. 174; Hook, 

 and Bak., Syn. Fil., p. 212; Smith, Ferns, Br. and For., p. 213; Hemsl., 

 Biol. Cent. Am., vol. in, p. 637; Bak., Jour. Bot., vol. xxii, p. 362 (from 

 Costa Rica). 



A. keterophyllum Pre si, Rel. Haenk., p. 40. 



Typical specimens of this well-marked species were rather 

 common in coarse volcanic soil at the foot of the volcano 

 Ometepe. 



Not heretofore specifically credited to Nicaragua. 



10. A. PLANTAGINEUM L. 



Linn., Syst. Nat., vol. 11, p. 689; Mett., Fil. Hort. Bot. Lip., p. 74; Mett., 

 Ub. Ein. Farng. pt. vi, p. 161; Eaton, Fil. Wr. et Fend., p. 206; Hook., 

 Sp. Fil., vol. in, p. 237; Hook, and Bak., Syn. Fil., p. 230; Fourn., Ser- 

 tum Nic, p. 257; Hemsl., Biol. Cent. Am., vol. in, p. 637. 

 Diplazium plantagineum Swartz, Syn. Fil., p. 91, pi. 11, fig. 4: Presl, Tent. 

 Pter., p. 113, pi. iv, rig. 1: Lieb., Mex. Breg., p. 100; Smith, Ferns, Brit. 

 and For., p. 222. 



This well-marked species was quite rare in the deep woods 

 near Castillo. The fronds are quite typical, but are coarsely 

 serrate toward the apex, and show a disposition to become 

 coarsely toothed or slightly lobed toward the base. 



The rootstock is short-creeping, and is covered with copious, 

 dark-brown, wiry roots which penetrate into the soil to con- 

 siderable depth. 



Reported from Chontales by Fournier and Hemsley. 



11. A. celtidifolum Kuiize. PI. xv, Fig. 6. 



Mett., Fil. Hort. Bot. Lip., p. 75, pi. xi 1, figs. 3 and 4: Mett., Ub. Ein. Farng., 

 pt. vi, p. 178; Eaton, Fil. Wr. et Fend., p. 206; Hook., Sp. Fil., vol. Ill, 

 p. 240; Hook, and Bak., Syn. Fil., p. 232. 



Owing to an accident only two pinnae remain of the speci- 

 mens which are referred with some doubt to this species. 



