^98 54. DAVAIXIA. § 2. COtPOSORIA. 



<l. Iiidusium more broad Ihnn long, or shortly attached in the 

 lower half of the sides. 



^. Indusium half-mpshaped, shortly attached at the sides 

 nearly as in Hiimala. (S) D. Griflithiana. 



>tc.>K- Indusium broader than deep, attached at the sides 

 throughout. (6) D. Lobbiaiia. 



d.d. Indusium + as broad as long, attached at the sides throughout. 

 e. Indusium cuneate. (7) D. stenoloba. 



e.e. Indusium half-cupshaped or sttburceolate, the apex sub- 

 rotund. (8) D. pallida. 

 e.e.e. Indusium half-cupshaped, the apex truncate. 



f. Apex of indusium + reaching the margin of the 



segment. Spurious veins more or less distinctly present. 



g. Rhizome scales crisped and interlaced, short- 



ciliate. (9) D. denticulata. 



g.g. Rhizome scales flat, entire. (10) D. epiphylla. 



f.f. Apex of indusium at some distance from the margin 



of the segment. No spurious veins. (11) D. decurreus. 



e.e.e.e. Indusium + orbicular or elliptical, the apex rounded 



or deltoid-roundish. (12) D. elata. 



c.c. Indusium generally longer than broad (*). 



1. Indusium less than 2 'X, as long as broad. 

 S, Fronds under 50 c.M. long. 



3. Rhizome scales nearly blade. (15) D. Lorraiuil. 



3.3. Rhizome scales whitish or pale-brown. 



4. Edges of the ultimate segments not incised at 

 the inner side of the sori, the teeth therefore 

 not lobe-like. (14) D. pyxidala. 



4.41. Edges of the idtimate segments incised at the 

 inner side of the soii, which gives the teeth the 

 appearance of vei-y small, soriferous lobes. 

 A. Iiulu^iuin half-cupshaped to nenncylindrical. 

 6. Soriferous teeth short and broad. 



(15) D. ballata. 

 e.e. Soriferous teeth long and narrow. 



(16) D. fructuosa. 



(*) See also D. elata, Spr. 



