FILICES. 625 
Fournier retains Litobrochia mexicana as a distinct species, to which he refers Pteris 
grandifolia, Mart. et Gal.; and P. pulchra, Ch. et Schl., he reduces to P. podophylla. 
17. Pteris pungens, Willd.; Hook. Sp. Fil. ii. p. 182; Hook. et Bak. Syn. Fil. 
p. 159; Fourn. Mex. Pl. Enum. i. p. 115, et in Bull. Soc. Bot. France, xix. p. 258. 
Sourn Mexico, San Cristobal (Botteri, 1422); Nicaragua, Chontales (Lévy, 493 bis). 
—West Inp1zs. 
18. Pteris quadriaurita, Retz.; Hook. Sp. Fil. ii. p. 179, t. 1343; Hook. et 
Bak. Syn. Fil. p. 158. 
SoutH Mexico, valley of Cordova (Bourgeau, 1429), cordillera of Vera Cruz at 3000 
feet (Galeotti, 6291), Chiapas &c. (Ghiesbreght, 396), Tlapacoya (Liebmann); Guats- 
_ MALA, Coban, Vera Paz (Salvin), Escuintla (Skinner), Volcan de Fuego (Godman & 
Salvin); Nicaragua, Chontales (Lévy, 493; Tate, 15); Panama, Coiba and Boquete 
(Seemann, 1119).—All round the world in Tropica, and SusrropicaL Rueions. Hb. 
Kew. 
Fournier does not include this species, but several of the collectors’ numbers cited 
above are given by him as being P. biaurita. See remarks under that species, p. 622. 
20. CERATOPTERIS. 
Ceratopteris, Brongn.; Hook. et Bak. Syn. Fil. p. 174, t. 3. fig. 32. 
An aquatic monotype. 
1. Ceratopteris thalictroides, Brongn. ; Hook. Sp. Fil. ii. p. 235, et Gen. Fil. 
t.12; Hook. et Bak. Syn. Fil. p.174; Eaton, Ferns N. Am. ii. p. 258, t. 80. figg. 10-14. 
Parkeria pieroides, Hook. et Grev. Ic. Fil. t. 97; Liebm. Mexicos Bregner, p. 138. 
Fioripa.—SoutuH Mexico, Tehuantepec (Liebmann).—West Inpizs to Brazil, and in 
TropicaL Asta, AFRICA, and AusTRALIA. Hb. Kew. 
Though widely diffused, this fern appears to be rare in Mexico and Central America, 
as there is only one specimen thence in the Kew Herbarium; and Fournier states that 
he had seen none from Mexico. 
21. LOMARIA. 
Lomaria, Willd.; Hook. et Bak. Syn. Fil. p. 174, et ed. 2, p. 481, t. 4. fig. 33. 
Forty-five species are described in the ‘ Synopsis Filicum,’ and the majority of them 
are concentrated in the south temperate zone, but the genus is scattered nearly all over 
the world. 
1. Lomaria attenuata, Willd.; Hook. Sp. Fil. iii. p.6; Hook. et Bak. Syn. 
Fil. p. 176. 
South Mexico, Chiapas &c. ((Ghiesbreght, 385); GuatemaLa, Coban (Godman & 
Salvin).—West Inpies to Braz, and Juan FERNANDEZ; also in Potynesta, the Masca- 
RENE IsLANDs, and FERNanDO Po. Hb. Kew. 
BIOL. CENTR.-AMER., Bot. Vol. III., December 1885. Al 
