48 ON GENERA AND SPECIES. 



** Spore cases without a jointed ring, 

 (a). Sori dorsal. 



ORDER. MARATTIACE^E. 



Tribe 1. MARATTINE^. 



1. Angiopterideae (Genus 1, Angiopteris, Hoffm.) 

 2. Marattieas (Gen. 3, Marattia, Sm., Gymnoiheca, 

 Presl, Eupodium, J. Sm.) 



Tribe 2. KAULFUSSINEJ;. 

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



Tribe 3. DANJIINE^E, 

 (Gen. 1, Dancea, Sm.) 



(b). Fructification marginal, on rachiform fronds 

 or branches (venation straight). 



ORDER. OPHIOGLOSSACEJ3. 



(Gen. 3. Botrychium, Sw., Helminthostachys, Klfs., 



Ophioglossum, Lin.) 

 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. LYCOPODIACEJ3. 



1. Phylloglosseae (Gen. l^Phylloglossum, Kze). 



2. Lycopodieas (Gen. 4, Tmesipteris, Bernh., Psilotiim, 



Sw., Selaginella, P. B.) 

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



radical or petiolar. 



ORDER. MAttSILEACEJS. 

 1. Isoetese (Gen. 1, Isoetes, Lin.) 

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



