218 Bulletin Jard. Bot. Buitenzorq, Série 111, Vol. V, LivR. 3. 



** Pleopeltis platyphylla (Sw.) Bedd. Handb. Iiid. Ferns, Supplem., 04.— 



Polypodiiim plaiyphyUum Sw. Syii. 27 ; V. A. V. R., Mal. Ferns 647 ; C. Chr. 

 Ind! Fil. 554. 



Also in Sumatra: Bengkoelen, Le bon g Donok. (C.J. BrookS 

 No. 470 S). 



Pleopeltis incurvata (BL ) MOORE in Gard. Cliron (1860), 1 105; V.A V.R. 

 Mal. Ferns & Ail, Supplem. I, 3Q9, Coxw, 5d>,b^. — Polvpodiiun incurvatiun 

 Bl , Enum. PI. Jav. Il, 126; V. A. V. R , Mal. Ferns 665; C Chr. Ind. Fil. 535. 



Forma typica: Sori round or oblong, the oblong ones parallel with 

 the central ribs of the lobes. 



Forma transversalis : A forma typica differt soris longioribus (oblongis) 

 horizontaliter patentibus. 



Java: Tjibodas Mountain Gardens. ait. 1425 m. (W. DOCTFRS VAN 

 Leeuwen.) 



Pleopeltis insignis (BL.) Bedd. Ferns Br. I., W, {3.b.2\A.— Polypodiiim 

 insigne BL , Enum. PI. Jav. II, 127; V. A. V. R., Mal. Ferns 663; C. CHR. 

 Ind. Fil. 535. 



Also in Sumatra: Mt. K oe r i n t j i, in forest, on trees, ait. 1500 — 1700 

 m. (H.A. B. BuNNEMEljER Nos. 8745, 8944, 9040, 12 — 20 Mardi 1920). 



Pleopeltis pseudoloxogramma V. A. V. R. 



Selligiiea. — Rhizoma repens, firmum, sublignosum, subglabrescens; 



squamae coriaceae, deltoideo-ovatae, sordide brunneae, integerrimae, acutius- 



culae ad acuminatae, fragiles. Stipites brèves, +: 1 cm. longi, basibus 



decurrentibus frondium saepe angustissime 2-marginati, subsemiteretes, supra 



leviter convexi, subtus rotundati [fig. b ')]. Frondes papyraceae, glabrae, 

 lineari-oblanceolatae, 30—45 cm. longae, ad vel saepius 

 supra médium 3-5 cm. latae, basin acutam versus sensini 

 angustatae, margine subcartilagineae sed non incrassatae, 

 integerrimae, in sicco saepe angustissime recurvatae, apice 

 acuminatae, interdum angustissime caudatae; costa utrinque 

 prominens, supra obtuse quadrangularis, subtus obtuse 

 '^' triangularis (fig. c ')); venae prlmariae 



patentes, graciles, cum venis secundariis venulisque 



in sicco leviter prominentes, venis secundariis trans- 



versalibus unitae; venae transversales frondium sterilium 



valde irregulariter et acute flexuosae, frondium fertilium 



minus irregulares ; venulae liberae inclusae numerosae. 



Sori lineares, venis primariis paralleli, costam margi- 



nemque frondium fere attingentes, superiores appro- 



ximati, inferiores conspicue remoti. 



Fig. c. 



') When exatiiiiied iii a satiirated cliloral-hydrate solution. 



