1	Lamina fertile throughout		(2)
+	Lamina fertile on upper 1/3-1/2 of pinnae, sterile on lower pinnae		(6)
2 (1)	Pinnae with narrow, translucent membranous margin.		67 D. nobilis
+	Pinnae without translucent membranous margin		(3)
3 (2)	Indusia corneous, strombuliform, almost completely enveloping mature sori; stipe rough (with obvious marks when scales fall off)		(4)
+	Indusia membranous, flat, not enveloping mature sori		(5)
4 (3)	Pinnules wide, often pinnatifid, ultimate segments sharply serrate at apex.		68 D. basisora
+	Pinnules narrow, mostly entire or lobed, ultimate segments with 1 or 2 coracoid teeth at apex.		69 D. fructuosa
5 (3)	Adaxial surface of pinnae pale green, scales on stipe papery, glossy dark brown.		70 D. juxtaposita
+	Adaxial surface of pinnae dark green, scales on stipe membranous, dull, dark brown or brown.		71 D. lachoongensis
6 (1)	Lamina densely clothed with glandular hairs on both surfaces.		61 D. sericea
+	Lamina without glandular hairs		(7)
7 (6)	Upper 1/3 of pinnae fertile, abruptly contracted, apices of pinnules acuminate.		62 D. lacera
+	Upper 1/2 of pinnae fertile, slightly contracted, apices of pinnules obtuse		(8)
8 (7)	Pinnules slightly narrowed apically, sharply dentate, basiscopic pinnule of basal pinna ?incised.		63 D. peninsulae
+	Pinnules obtuse, entire to incised-dentate, basiscopic pinnule of basal pinna not incised		(9)
9 (8)	Scales on stipe and rachis blackish, often with a narrow brown edge.		64 D. uniformis
+	Scales on stipe and rachis mostly brown		(10)
10 (9)	Scales on stipe brown, black on rachis.		65 D. nyingchiensis
+	Scales on stipe and rachis brown.		66 D. sublacera