— 18 — 



f. Asplenieae'. sori lineares v. liinulati, discretr, rachi v. 

 margini obliqni (in segm. nngustis parralleli), indusium late- 

 rale: — Asplenium (Athyrium)^ Allantodia; Scolopendrium, 

 Camptosorus; DijAazium 



g. Aspidieae : sori orbiculares et discreti < ; indusium 

 orbiculare-peltatum, reniforme v. ellipticum: — Didymochlae' 

 na ; Aspidium^ Sagenia^ Poljstichum ; Nephrodiujn^ Oleandra, 

 iMStraea; — Hjpodematium ^ Cyslopteris; Onoclea 



h. Dicksonieac: sori discreti raro confluentes, indusio 

 concavo, bivalvi v. cupulari et acrochizo, quibusdam pedi- 

 cellato cincli; receptacul. punctiforme v. obsoletum: — Lind' 

 saya, Davallia ; Dicksonia.^ Balajitium^ Cibotium ; — Peranenui^ 

 Physematium fDiacalpe^ Hymenocystis ) ^ Thyrsopteris (Dick- 

 sonieis et Cyatheeis intermediae). 



FAM. 26. CYATHEACEJE ( HELKJOGYRAT.E PresL). 



Filices Iropicse et hemisphaerii australis <1, passim aculea- 

 tae, caudice repente v. erccto , brevi v. ad 50 pedes elato, 

 arboreo, tesselato, foliis pinnatisectis -^. Sori globosi, -f- — 

 depressi , oUgo-polycarpi, nudi v. indusiati ; sporangia sessil. v. 

 brachypnda, annulo subcompleto, lato, obHquo v. transverso, 

 longitrorsum < dehiscentia; sporae oblongae, renif. v. trique- 

 trae. (Sectio prima fohis c. Aspidieis convenit, secunda ano- 

 mala, an famiUae distinctae? ) 



A. Cyathearice: caudice erecto, saepius excelso et arboreo, 

 foliis amplis, pinnatifido-decompositis, herbaceis, rarius subin- 

 tegris, sinualis v. coriaceis. Sori globosi, in dorso venarum, 

 saepius prominularum, sessiles, in segmenlis pauci v. bi-plu- 

 riseriali, raro soHtarii, saepius polycarpi, receptaculo glob. cla- 

 vato, conico v. obsolelo, indusio infero, superne ruptili, qui- 

 busd. dimidiato, nullo v. in pilos resoluto; annulo obliquo ; 

 sporae trigonae < : — Matonia.^ Alsophila., Cyathea^ Hemitelia, 

 Trichopteris y Metaxya 



