21. Pleognemia. 171 



)f the, same group slightly so, forming 1—2 rows of irregular areolae near the 

 jostae and costulae without included free veinlets, the rest free. Diels, in 

 Engl. & Prantl, Nat. Pfl.Pam,, 1\ fig. 97, D. (Aspidium, p.p., C. Chr., Ind. Pil). 

 Tropical Asia, Polynesia. 



c.c.c. 



*• %'^i^iH^P^!^Jj¥d."^y^^^^^^^fi^> <^- - '''■'■ (1) p. heterophylla. 



v.a. Fronds at least 2-pinnatifiZl •'■'''*-"- • 



h. Texture rather coriaceous. 

 ±. Lower pinnae pinnatifid. 



2. Surfaces slightly hairy on the veins. (2) P. excellens. 



3.2. Surfaces naked, or the upper one slightly scaly. (3) P. megalocarpa. 

 1.1. Lower pinnae pinnate, at least on (he lower side. (4) P. Leuzeana. 

 6.6. Texture rather herbaceous or membranaceous. 



c. Lower pinnae pinnatifid. (5) P. gigantea. 



CO. Lower pinnae pinnatifid with the lowest basiscopical segment pinnatifid 

 again. a -.^ ^ -^ - .»- 16) P. membi-anifolia. 



Lowest pinnae pinnateYat the basey the lowest basiscopical aogmcnl j 

 pinnatifid or pinnate, at the bmoj 



' <I. Suffaoo ^ ^ hd.x^'ft-'' O" *^^^^^^ ^ (7) P. Trimeni. 



d,.d. Upper surface + hairy towards the marqin, hw^ ^- sUgthl y 



fubemhms, (8) P. devexa. 



(1) P. hetci*»phylla, ». A. v. R./Nephrodium heterophyllum, Hk., 

 Ik. Bk., Syn. Fil., 295; A*/38rfmm Ae^ero/>%//MOT,^#c«:yCopel., Polypod. Philipp., 

 >9., Hk., Icon. PL, X, tah. CMXX ; - Dryopfon'e oanomo n e, G^Ghr^ mr^j, C. Chr.) 

 nd. Fil. /-/ [iH<^ (not Mcl£, 



Rhizome creeping. Stipes 5 — 10 c.M. long, densely villose, scaly towards 

 he hase. Fronds 12 — 15 c.M. long, ± S'/j c.M. broad, simple, acuminate, 

 he edge lobed 74 — Vs'^^Y down into numerous, ohlong, blunt, slightly 

 alcate lobes. Texture coriaceous; surfaces villose especially on the edges 

 nd the midribs beneath; main veins pinnate in the lobes, those of the 

 arren fronds forming 1 — 2 rows of costal and constular areolae, those in the 

 ertile fronds anastomosing + as in Nephrodium, 5 — 6 on each side. Sori 

 ledial on (he veins; indusium small, fugacious. 



Philippines. 



(2) ■•. excellent, V. A. V. JR.; Nephrodium excellens, Hk., Hk. Bk., 

 lyn. Fil, 295; Aspidium excellens, Bl., Enum., 160; C, Chr., lud. Fil. 



