2I2 NATURAL HISTORY BULLETIN. 



Lecanium membranaceum Presl, Hymen., p. 12, pi. 1, figs. 1-12; Fourn., Bull. 

 Soc. Bot. Fr., vol. xv, p. 144. 



T.fonnatum Hedw., p. 134. 



Swz., Syn. Fil., p. 142; Bom. et Ch., Fil., p. 184. 



Neurophyllum pinnatum Presl, Hymen., p. 19, pi. iv c; Lieb., Mex. Breg., 

 p. 144; Smith, Ferns, Br. and For., p. 254; in the two latter as penna- 

 tum. 



T. frieurii Kze., p. 134. 



Smith, Ferns, Br. and For., p. 254 (as leprieurii); Bom. et Ch., Fil., p. 184. 



T. -pimctalum Poir., p. 129. 



Smith, Ferns, Br. and For., p. 252. 



T. reptans Swz., Fl. Ind. Occ, p. 1727; Swz., Syn. Fil., p. 142; Lieb., Mex. 



Breg., p. 142; Smith, Ferns, Br. and For., p. 253. 

 T. sphenoides Kze., Die Farrnk., p. 215, pi. lxxxviii, fig. 2. (Kunze places 



T. reptans, punctatum and hookeri in the synonymy of T. sphenoides'). 

 Didymoglossum punctatum Presl, — Fourn., Bull. Soc. Bot. Fr., vol. xix, p. 



2.39- 

 Didymoglossum sphenoides Presl, — Fourn., Bull. Soc. Bot. Fr., vol. xix, p. 



239. With this is included var. genuina Fourn. (= D. laceratum Fee,= 



T. reptans H. & G.). 

 Didymoglossnm reptans Presl, — Fourn., Bull. Soc. Bot. Fr., vol. xix, p. 240. 



T. ■pusillum Swz. (possibly including the var.), p. 130. 

 Swz., Fl. Ind. Occ, p. 1729; Swz. Syn. Fil., p. 142; Smith, Ferns, Br. and 

 For., p. 253. 

 Hemiphlebium pusillum Swz., —Presl, Hymen., pi. ix, figs. 1-3. 



T. -pyxidiferum L., p. 132. 

 Swz., Syn. Fil., p. 143; Lieb., Mex. Breg., p. 143; Smith, Ferns, Br. and For., 



P- 2 53- 

 T. radicans Swz., p. 132. 



Swz., Fl. Ind. Occ, p. 1729; Swz., Syn. Fil., p. 143; Presl, Hymen., p. 16, pi. 

 11 /3; Smith, Ferns, Br. and For., p. 253; Bom. et Ch., Fil., p. 184. 



These additional references necessitate the following cor- 

 rections and additions: 



1. The following species, reported in this paper on the 

 page opposite each name as not occurring in Central America, 

 are given in Bommer and Christ's recent list from Costa Rica. 

 They are, however, new to Nicaragua. 



Acrostichum osmundaceum (H. B. K.) Hook., p. 187. 

 Phegopteris punctata (Thunb.) Mett., p. 182. 



Trichomanes brachypns Kze., p. 132. 



Trickomanes prieurii Kze., p. 134. 



