ISX. GEJTEEA OF FEENS : 



CHEitiNTHis sp., Auct. ; AcBOSTicHi sp., Auct. ; Ptehtdis sp., Auct. ; 

 ViTTAEiiB s^. J Bernhardt ; Adiauti sp., Auct.; Aspidii sp., Stcartz ; 

 Nbpebosii sp., Mich43Mx ; WooDSua sp., Sprengel. 



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

 becoming laterally confluent into a narrow line or border ; th,e 

 receptacles terminal. Veins simple or forked from a central 

 costa ; venules free. 



Pronds pinnate, or bi-tri-pinnate, tbe margins sometimes with 

 a tendency to become revolute and indusioid. Bbizome 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 Grleditsch 

 seems to hare included Nothochlcena. 



§ OincinaUs. — Fronds plain or farinoso-ceraceous beneath. 



N. pulveraeea, Kze. 



K. dealbata, Kze. 



N. chrysophyUa, lAnden. 



§ AUoesthes. — ^Fronds scaly, hairy, or woolly beneath. 



N. rufa, Vresl. 



Ex. : N. trichomanoides, R. Sr, 

 N. nivea, Desv, 

 N. flavens (Acrostiehum, Svo.) 



Ex. : N. lano^inosa^ Desv. 

 N. molhs, Kze. 

 TS. Eckloniana, Kze. 

 N. MarantiB, B. Br. 



N, hypoleuca, Kze. 

 N. Testita, Besv. 

 N. sinuata, Sy». 



100 (?) MONACHOSORUM, Kunze, Bot Zeit. tI. 119. 



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

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

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

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



i'ronds decompound, herbaceous. — This genus appears to have 

 been founded on an aged specimen of Acrophonis. 



Ex. : M. davallioides, Kze. 



101. POLYPODIITM, Idnnmus, Gen. PZ. 784, (reduct.) 



PsEDOPODnTM, Necker ; MABGnfAEiA, Bory ; Ctenoptbbis (1), Blnme; 

 DiCRANOPTEBis, Blumc ; Adenophoeus, Gaudichaad; Amphgeadeniitm, 

 Desvaux ; Cetptosobtts, Fie s Phegoptebis, Breal : Fee; Ctbhopteeis 

 (2), Newman ; PseudathilEIUM, Neicma/n ; Gtsdtocabpitim, JVeirman ,* 

 Gtmsodium, 4. Braun; Aetheopieeis, J. 5'mrtA, in part ; Glaphteop- 

 TEBis, Preai; Catenulaeia, Zippell. 'US ; C<elopibbis, .k. .Sraun MS; 



