III. GENEEA OF PEEKS: 



CHEILANTHIS sp., Auct. ; ACBOSTICHI sp., Auct. ; PTBBIDIS sp., Auct. ; 

 VITTABI.S sp., Eemhardi; ADIANTI sp., Auct.; ASPIDII sp., Swartz ; 

 NBPHBODII sp., Michaux ; WOODBINE sp., Sprengel. 



Sori non-indusiate, small, rolundate, oligocarpous, contiguous, 

 becoming laterally confluent into a narrow line or border ; the 

 receptacles terminal. Veins simple or forked from a central 

 costa ; venules free. 



Fronds pinnate, or bi-tri-pinnate, the margins sometimes with 

 a tendency to become revolute and indusioid. Rhizome short 

 erect or decumbent. This genus has all the habit of Cheilan- 

 thes, with which some of its species have much affinity, differing 

 chiefly in the absence of an indusium. The Cincinalis of Gleditsch 

 seems to have included Nothochlcena. 



Cineinalig. Fronds plain or farinoso-ceraceous beneath. 



Ex. : N. trichomanoides, B. Sr. 

 N. nivea, Detv. 

 N. flavens (Acrostichum, Sie .) 



N. pulveracea, Kze. 



N. dealbata, Kze. 



N. chrysophylla, Linden. 



Alloesthes Fronds scaly, hairy, or woolly beneath. 



Ex. : N. lanuginosa, Desv. 

 N. mollis, Kze. 

 N. Eckloniana,i'ze. 

 N. Marantte, E. Br. 



N. rufa, Presl. 

 N. hypoleuca, Kz 

 N. vestita, Desv. 

 N. sinuata, Klfi. 



100 (?) MONACHOSOBUM, Kunze, Sot. Zeit. vi. 119. 



Sori naked, sub-rotund, oligocarpous, solitary at the thickened 

 apices of the venules, on the lobes of the fronds. Veins pinnate 

 (in the segments) ; venules simple or forked, free, soriferous at 

 the apex, near the margin. Kunze, ex icon, et desc. 



Fronds decompound, herbaceous. This genus appears to have 

 been founded on an aged specimen of Acrophorus. 



Ex. : M. davallioides, Kze. 



101. POLYPODIUM, Lwnaus, Gen. PL 784, (redact.) 



PsiDOPODitm, Necker ; MABGINMBIA, Sory ; CTENOPTEBIS (1), Illume ; 

 ItacBANOpiBBis, Blume ; ADENOPHOBUS, Gaudichaud; AMPHOBADENIUM, 

 Demaux ; CBYPTOSOBUS, Fie ; PHEGOPTEEIS, Presl : Fee; CTENOPTEBIS 

 (2), Newman; PSETJDATHYBIUM, Newman; GTMNOCABPIUM, Newman; 

 GTMNODIUM, A. Sraun; ABTHBOPTEBIS, J. Smith, in part; GLAPHTBOP- 

 TEBIS, Presl; CATENULABIA, Zippell. MS; CGELOPTEBIS, A. Sraun MS; 



