PBOF. M. W. HARRINGTON ON TROPICAL FERNS. 35 



in. deep, dimidiate, lower margin straight, lateral and upper mar- 

 gins rounded, broadly crenate, stalk of pinnae slender, ^ inch long 

 below, becoming less above ; uppermost pinnae cuneate, lowest 

 more or less completely non- dimidiate with opposite sori; texture 

 subcoriaceous ; veins free ; surfaces naked throughout ; sori 25 

 or less to a pinna, reversed reniform, as broad as deep, apparently 



intramarginal. 



Myobamba 



Chachapoyas, Peru ; also hanging from damp rocks, Poma Cocha, 

 Peru, July 1872. 



The margins of the cuts at the base of which the sori lie are so 

 closely approximated that the sori appear intramarginal. The 

 plant is related to A. ShepTierdij Hooker, but has affinities with 

 A. lunulatum, Bnrm., and A. Galeottianum, Hooker. 



AniANTUM MACROPHYLLXJM, Swartz, Ecuador. 



A, ^THiopicTJM, L. Peru ; Ecuador. 



Cheilanthes Matthewsii, Kunze. Peru. 



C. MiCROPHTLLA, Stoartz. Peru. - 



C. MYEioPHTiiLA, Besv. Peru ; Ecuador. 



C scARiosA, Kaulf. Peru. 



Pell^a geraniifolia, Fee. Peru. 



P. TERNiFOLiA, Fee, Pcru ; Ecuador. 



P. MARGiNATA, Bahe)\ Peru ; Ecuador. 



P. CORDATA, J. Smith. Peru. 



Pteris cretica, L. Peru, 



Same, var. stenophtlla. Poma Cocha, Peru. 



p. AQUiLiNA, L. Peru. 



P. PEBATA, L. Peru. 



p. iNciSA, Thunbg. ^ Contumarca, Peru. 



Blechnum occinENTALE, L. Pctu ; Ecuador. 



B. serrttlatiim, Rich. Mouth of the Amazon. 

 AsPLENiTJM FRAGILE, FresL Cumbassauma mts., Peru. 

 A. monanthemum, L. Peru. 



A, TRicHOMANEs, i. Peru ; Ecuador. 



A. EXTENsrM, Fee. Peru. 



A. LUNFLATrM, Sw. Peru ; Ecuador. 



A. RHizoPHYLLUM, L. Ecuador. 



A. AURiTUM, Swartz. Peru. 



A. FURCATUM, Thtmh. Peru: Ecuador. 



H, B. K. Foot 



of Chimborazo. 



d2 



