— 343 — 



The form collected is larger than the Chinese type (pinnæ 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 incised pinnæ, 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 pinnæ; in 

 this character as in others (pubescence and the long pinnatifid apex of 

 the lamina) it agrees with no. 74-5 b, but its pinnæ 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 I have shown is apparently exactly the same form as the true 

 D. parasitica from China (Arkiv för Bot. 9 no. 1 1: 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. extenssi (Bl.) 0. Ktze.; C. Chr. Ind. 264; Aspidium externum 

 Christ, 1. c. 109,— (no. 627). 



14. D. (Meniscium) triphylla (Sw.) C. Chr. Ind. 298; Meniscium 

 triphyllum, Christ, 1. c. 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 (BL). — 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. Leptorhilus heteroclitus (Pr.) C. Chr. Ind. 385. 



Klong Sarlakpet (no. 777 part; mixed with Dryopteris triphylla). 



Area: Tropical and subtropical Asia; Melanesia. 



