FILICES. 641 
There are nine species of this genus, which is restricted to the northern hemisphere, 
except two peculiar and distinct Brazilian species, constituting the genus Antigramme 
of Presl. 
1. Scolopendrium (Schaffneria) nigripes, Hook. Sp. Fil. iv. p. 3; Hook. et 
Bak. Syn. Fil. p. 247. 
Schaffneria nigripes, Fée, 8° Mém. Foug. p. 56, t. 17; Fourn. Mex. Pl. Enum. i. p. 111. 
Asplenium (Schaffneria) nigripes, Hook. Kew Journ. Bot. ix. p. 268, t. 9. 
Souta Mexico, valley of Cordova (Bourgeau, 2003), Vera Cruz to Orizaba (Miller, 
693; Schaffner, 47), Chiapas (Ghiesbreght, 302); Guatemata, Yzabal (Godman & 
Salvin). Hb. Kew. 
2. Scolopendrium vulgare, Sm.; Hook. Sp. Fil. iv. p. 1; Hook. et Bak. Syn. 
Fil. p. 247; Eaton, Ferns N. Am. i. p. 247, t. 32. figg. 1 et 2. 
Scolopendrium lindeni, Hook. Ic. Pl. t. 488. 
CanaDa southward.—Soutu Mexico, Chiapas (Linden, 1543; Ghiesbreght, 296, 307). 
—MapDeEira, the Azores, and Britain to Persra and Japan. Hb. Kew. 
Fournier does not include this fern in his Enumeration. 
Tribe X. ASPIDIEA. 
Six genera, five of which are known to be represented within our area; the other is 
Fadyenia, a monotype, which has hitherto been found only in Cuba and Jamaica. 
26. DIDYMOCHLAENA. 
Didymochlena, Desy.; Hook. et Bak. Syn. Fil. p. 248, t. 4. fig. 42. 
Besides the following there is one other species, which inhabits the Malay Peninsula 
and Archipelago. 
1. Didymochlena lunulata, Desv.; Hook. Sp. Fil. iv. p. 5, et Gard. Ferns, 
t. 17; Hook. et Bak. Syn. Fil. p. 248. 
Didymochlena sinuosa, Desv. Journ. de Bot. 1813, i. p. 23, t. 2. fig. 4; Fourn. Mex. Pl. Enum. i. 
p. 131, et in Bull. Soc. Bot. France, xix. p. 259. 
Sourn Mexico, Mount Algodon, three leagues from Misantla (Hahn); GuatEMALa, 
Choctum (Godman & Salvin) ; Nicaragua, Chontales (Tate, 30; Lévy, 469).—Cuza to 
Perv and Brazit; ArricA; MascaRENE IsLANDS; Matay PENINSULA and ARCHIPELAGO 
and the Fiyi Istanps. Hb. Kew. 
27. ASPIDIUM. 
Aspidium, Swartz, partim ; Hook. et Bak. Syn. Fil. p. 248, et ed. 2, p. 492. 
A generally diffused genus of about sixty species. 
BIOL. CENTR.-AMER., Bot. Vol. III., December 1885. An 
