j5 4 natural history bulletin. 



This species was not very rare, growing in tufts to a height 

 of i to i y 2 feet, in rich soil in deep woods near Castillo. 



Baker and Hemsley report it from Costa Rica, the only 

 records of the species under this name in America. It is 

 known, however, as A. ottonis from several American localities. 



13. A. shepherdi S-preng. PI. xvi, Figs. 3. 4. 



Mett., Fil. Hort. Bot. Lip., p. 75; Mett, Ob. Ein. Farng., pt. vi, p. 164; Hook, 

 and Bak., Syn. Fil., p. 233; Hemsl., Biol. Cent. Am., vol. in, p. 639; Bak., 

 Jour. Bot., vol. xxii, p. 116. 

 Diplazium shepherdi Smith, Ferns, Brit, and For., p. 222. 

 Diplazium striatum Presl, Tent. Pter., p. 114. 



A. caracasanum Mett., Ub. Ein. Farng., pt. vi. p. 165, pi. v, fig. 17. 

 A. striatum L., 1 — Hook., Sp. Fil., vol. ill, p. 245. 

 A .denticulosum Desv., — Fourn., Sertum Nic, p. 258. 



But two fronds were collected, though the species was not 

 rare along the Deaseado River. 



Both of these are slender, and rather weak, in this respect, 

 and in the division of the pinna; being the var. caracasanum. 

 One of the fronds also has the usual sori of caracasanum. 

 Terrestrial in habit. 



Fournier reports this as A. denticulosum from Chontales, 

 and on his authority it is also reported by Hemsley under A. 

 shepherd/. 



14. A. radicans Schk. PI. xvi, Figs. 5, 6. 



Swz., Syn. Fil., p. 84; Hook., Sp. Fil., vol. m, p. 26 (in part); Hook, and 

 Bak., Syn. Fil., p. 241; Hemsl., Biol. Cent. Am., vol. 11 1, p. 637; Bak., 

 Biol. Cent. Am., vol. iv, p. 116 (both from Costa Rica). 

 A. ambiguum Raddi (?),— Fourn., Sertum Nic, p. 257. 



Quite abundant in the deep woods on higher ground near 

 Castillo. The fronds were tufted. Terrestrial in habit. 



Reported probably as ambiguum (?) by Fournier from 

 Nicaragua without locality. 



15. A. MARGINATUM L. 



Linn., Syst. Nat., vol. 11, p. 690; Lieb., Mex. Breg., p. 100; Mett., Fil. Hort. 



1 Probably A. striatum Linn., Syst. Nat., vol. 11, p. 600 (also Swz., Syn. 

 Fil., p. 82; Mett., 'Ub. Ein. Farng., pt. vi, p. 185) should be placed here. 

 If this were certain this name would have precedence. 



