THE FERNS OF NICARAGUA. 



189 



This well-known species was very common in brackish and 

 fresh-water swamps at the mouth of the San Juan River near 

 Greytown. It was in fine fruit. 



It has been reported from the vicinity of Granada by Four- 

 nier (as kirsutuni), and by Hemslev. 



Reported Species. 

 A. caudatum (Kze.) Hook. 



Hemsl., Biol. Cent. Am., vol. in, p. 684, from Chontales. 



A. melauoftits Kze. 



Fourn., Sertum Nic, p. 249; Hemsl., Biol. Cent. Am., vol. 111, p. 687; both 

 without exact locality. 



Family XI. GRAMMITIDE^E. 

 Genus HEMIONITIS Linn. 



1. H. CITRIFOLIA (L.) Hook. 



Hook.. Sp. Fil., vol. V, p. 193: Hook, and Bak., Syn. Fil., p. 399; Hemsl., 



Biol. Cent. Am., vol. in, p. 682. 

 AcrosticJuon citrifolium L., Syst. Nat., vol. 11, p. 6S5: Swz., Syn. Fil., p. 9; 



Mett, Fil. Hort. Bot. Lip., p. 19; Eaton, Fil. Wr. et Fend., p. 195. 

 Hcmionitis parasitica L., Syst. Nat., p. 6S9. 

 Anetium citrifolium L, -Smith, Hist. Fil., p. 129; Smith, Ferns, Br. and 



For., p. 10S; Fourn., Sertum Nic, p. 250. 



The specimens in the collection distinctly show both the 

 lines of sporangia along the veins, and the scattered clusters 

 of sporangia between the veins. 



The fronds are small, measuring from 1^ to 5 inches in 

 length. The stipes are very short, almost wanting in many 

 of the specimens. 



Common, creeping on the trunks of small trees in low 

 woods near Castillo. 



Reported from Chontales by Fournier (as Anetium), and 

 by Hemslev . 



2. H. PALM at a L. 



Linn., Syst. Nat., vol. 11. p. 689; Swz., Syn. Fil., p. 20; Hook., Ex. Fl., vol. 

 1, pi. 33: Presl, Pent. Pter., p. 221, pi. ix, fig. 21; Lieb., Jlex. Breg., p. 



