|
| 1 |
Lamina broadly triangular-lanceolate, widest at base |
|
(2) |
| + |
Lamina oblong-lanceolate, often slightly tapering to base |
|
(4) |
| |
|
|
|
| 2 (1) |
Pinnules becoming pinnate only near base of lamina; indusia somewhat thick, red-brown, persistent. |
|
76 D. subimpressa |
| + |
Pinnules mostly pinnate throughout lamina; indusia thin, pale brown or brown, deciduous |
|
(3) |
| |
|
|
|
| 3 (2) |
Lamina smooth on adaxial surface, ultimate segments rectangular, subentire, stipe base scales glossy and exserted. |
|
77 D. marginata |
| + |
Lamina dull, with impressed veins on adaxial surface, ultimate segments acute, serrulate, stipe base scales, adpressed. |
|
78 D. caroli-hopei |
| |
|
|
|
| 4 (1) |
Lamina markedly dimorphic; fertile lamina usually contracted; indusia strombuliform. |
|
72 D. cochleata |
| + |
Lamina monomorphic; fertile lamina usually not contracted; indusia flat |
|
(5) |
| |
|
|
|
| 5 (4) |
Lamina nearly leathery, with translucent narrow pinnule edges. |
|
73 D. porosa |
| + |
Lamina papery, without translucent narrow pinnule edges |
|
(6) |
| |
|
|
|
| 6 (5) |
Fronds arising from apices of rhizome, pinnules deeply pinnatifid. |
|
74 D. pteridoformis |
| + |
Fronds arising from rhizome at intervals, pinnules pinnate. |
|
75 D. angustifrons |
|
