343 419 
The form collected is larger than the Chinese type (pinne 6 cm. 
long by 2 cm. broad), but in technical and minute characters not very 
different. From the following species it differs by its short but broad, 
little inciséd pinne, the lamina with a long pinnatifid apex, and the very 
short pubescence of both surfaces. Nephrodium pennigerum Bedd., now 
called D. indica v. A. v. R., to a variety of which: malayense Bedd. 
Christ referred our specimens, differs by having 5—8 pairs of anastomos- 
ing veins. 
Another specimen collected at Klong Son (no. 771) I provisionally 
also refer to D. latipinna. It looks very different, in general habit much 
more like D. parasitica, from which it differs by its less cut pinne; in 
this character as in others (pubescence and the long pinnatifid apex of 
the lamina) it agrees with no. 745 b, but its pinne are narrower (1 cm. 
by 6 cm. long), more acuminate, and the under-surface is dotted with 
large red glands. It is not unlikely an undescribed species. 
Area: China, Java(?). 
12. D. parasitica (L.) O. Ktze.; C. Chr. Ind. 282 ex parte; Aspidium 
parasiticum Christ, 1. c. 109. (no. 771 bis). 
The form collected certainly belongs to the collective species D. 
parasitica. It is a very hairy, didymosorous form that with approximate 
certainty can be identified with Nephrodium tectum (Wall.) Bedd. Handb. 
Suppl. 79, although the rhizome is short-creeping. Beddome refers to 
N. tectum his N. didymosorum Parish, Ferns br. Ind. t. 200 from Burma, 
which 1 have shown is apparently exactly the same form as the true 
D. parasitica from China (Arkiv for Bot. 9 no. 11: 26—28). I am not 
nearly so convinced that the Koh Chang form, like A. tectum Wall. from 
Singapore and Perak, is typical D. parasitica. 
13. D. extensa (Bl.) O. Ktze.; C. Chr. Ind. 264; Aspidium extensum 
Christ, 1. c. 109, — (no. 627). 
14. D. (Meniscium) triphylla (Sw.) GC. Chr. Ind. 298; Meniscium 
triphyllum Christ, 1. ¢. 109, — (no. 650, 777 part.). 
15. Aspidium variolosum Wall.; Christ, 1. c. 108,—(no. 626 a, 772). 
16. Polybotrya appendiculata (Willd.) J. Sm.; C. Chr. Ind. 503. 
var. marginata (BI). —- P. marginata Bl. Fl. Javae t.3.; P. appendi- 
culata Christ, 1. c. 109 cum var. Helferiana (Ktze.) Christ, 1. c. 
Differs from the varieties recognized by Beddome by its naked rachis, 
which (in the sterile leaves) is margined on both sides by a green wing 
about 1 mm. broad. Some of the sterile leaves have a prolongated, root- 
ing apex. 
Area (of variety): Java (Malaya ?). 
17. Leptochilus heteroclitus (Pr.) C. Chr. Ind. 385. 
Klong Sarlakpet (no. 777 part; mixed with Dryopteris triphylla). 
Area: Tropical and subtropical Asia; Melanesia. 
Q7* 
