i58 



NATURAL HISTORY BULLETIN. 



Rather rare in the deep woods near Castillo. None of the 

 fronds are distinctly proliferous, but only one has a perfect 

 apex, figured in Fig. 7, PI. xm. The wings are prominent on 

 both rachises and stipes, and in most of the fronds the pinna? 

 are unequally developed, giving the frond a ragged appear- 

 ance. Forking veins are rare in all of the specimens. 



New to Nicaragua. The species is not mentioned in the 

 Biologia Central! -Americana. 



3. A. LUNULATUM SlVZ. vai\ PROLIFERUM (SzUZ.) Mett. 



PI. xm, Fig. 8; PI. xiv, Fig. 1. 



Mett, Ub. Ein. Farng., pt. vi, p. 121. 



A. lunulatum Swartz, 1 — Bak., On Rec. Syn. Braz. F., p. 21 ; Hook, and Bak., 

 Syn. Fil., p. 202; Hemsl., Biol. Cent. Am., vol. in, p. 636; Bak., Biol. 

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



A. erectum Bory, 8 — Lieb., Mex. Breg., p. 90: Mett., Fil. Hort. Bot. Lip., p. 

 73; Eaton, Fil. Wr. et Fend., p. 205; Fourn., Sertum Nic, p. 257. 



A. proliferum Swartz, FI. Ind. Occ, p. 1609; Swz., Syn. Fil., p. 74; Mett., 

 Fil. Hort. Bot. Lip., p. 74, p!. xi, fig. 7. 



A.erectum var. proliferum Hook., Fil. Ex., pi. lxxii; Hook., Sp. Fil., vol. 

 in, p. 126. 



A. tenellum Roxb., — Smith, Ferns, Brit, and For., p. 212. 



Not common in the deep woods near Camp Menocal. Ter- 

 restrial in habit, growing in tufts. 



The specimens are very similar to Hooker's 3 figure, the 

 stipes in the former, however, being much shorter. The 

 pinnae vary from broadly obtuse to obtusely acuminate at the 

 apex. The apices of most of the fronds are broken off, but 

 some were evidently proliferous. Fig. 8, PI. xm represents a 

 perfect apex which is not proliferous. Hemsley reports A. 

 lunulatum from Chontales, and Fournier gives A. erectum 

 from the same locality. Whether these include the var. -prolif- 

 erum or not does not appear in the references. 



The variety has not heretofore been specifically reported 

 from Nicaragua. 



1 Probably including var. proliferum. 



2 Probably including var. proliferum. 

 8 Fil. Exot., pi. lxxii. 



