48 ON GENERA AND SPECIES, 



** Spore cases without a jointed ring-, 

 (a). Sori dorsal. 



Order.— MAEATTIACE^. 



Tribe 1. — Marattine/E. 

 § 1. Aiigiopteridea3 (Genus 1, Angiopteris, Hoifm.) 

 § 2. Marattieas (Gen. 3, Marattia, Sm., Gijmnotheca, 

 Presl, Eupodium, J. Sm.) 



Tribe 2. — Kaulfussine.e. 

 (Gen. 1, Kaulfussia, Bl., K. esculifolia). 



Tribe 3. — DANj;iNEiE. 

 (Gen. 1, Dancea, Sm.) 



(i). Fructification marginal, on rachiform fronds 

 or branches (venation straight). 



Order.— OPHIOGLOSSACE^. 



(Gen. 3. Botrychiuni, Sw., HelminUiostachys, Klfs., 

 Opliioglossum, Liu.) 

 Lycopodales. — Acrogenous plants with axillary radical 

 or one-four-or many-celled spore cases. 

 * Spore cases one-three celled, in the axils of the stem- 

 leaves or bracts. 



Order.— LTCOPODIACEyE. 



§ 1. Phylloglossete (Gen. 1, Pliylloghssum, Kze). 



§ 2. Lycopodiese (Gen. 4, Tmesipteris, Bernh., Psilolum, 



Sw., Selaginella, P. B.) 

 ** Spore-cases (conceptacles) one-four-or many-celled, 



radical or petiolar. 



Order.— MAttSILEACEiE. 

 § 1. Isoeteoe (Gen. 1, Isoetes, Lin.) 

 § 2. Salvinieae (Gen. 2, Salvinia, Micheli, Azolla, Lam.) 



