Van Alderwerelt van Rqsenbukgh: Mal ayan Ferns 12. 217 



minus copiosis, + 4 - 6-seriatis. Sori iiiter veiias priinarias 1-seriati, in aerolis 

 primariis solitarii, rotiindi, iioiiiuimqiiani per paria coiifjiieiites. 



Ternate: Nortli For a m ad ia h i, creeping over stoiies iii grassy 

 jungle, ait. 1500 ni. (V. M. A. BEGUIN No. 1503, 11 Mardi 1021). 



Pieopeltis linguaeformis (Mett ) V. A. V. R., Bull. Dép. Agr. I. N. 

 XXVII (190Q), à.— PI. musifolia MooRE var. Scluimanniana V. A. v. R , Mal. 

 Fcrns & Ali. Suppleni. I, 3Q\. — Po/vpodiuni Scliiimannianum DlELS in SCHUM. 

 & Laut, Flor. deut. Sch. geb. 139, tab. III, C — D. — P. lingiiaefonne 

 Mett. in Ann. Mus. Bot. L. B. 11, 228; C. CHR. Ind. Fil. 540. 



Rhizome creepin^, firm, the scales more or less deciduous, linear- to 

 ovate-lanceolate, fuscous, acuminate, minutely and more or less sparingly 

 denticulate. Fronds + 25 — 50 cm. long, to 6'/2 — 13 cm. broad, varying 

 from ovate-oblong or panduriform to lanceolate or spathulate, sessile with 

 a dilated, cordate or rounded base to stalked witii a long-decurrent base, 

 the edge entire, the apex bluntish to relatively long-acuminate. Texture 

 chartaceous to subcoriaceous; surfaces naked ; main veins when dry distinct 

 in the lower half, the higher often parallel, the lower often very irregular. 

 ail forked and evanishing gradually towards the apex, forming with the 

 other veins 1 row or large primary areolae and beyond thèse 2 — 3 rows 

 of smaller secondary areolae, ail divided into numerous still smaller ones; 

 . ultimate areolae irregularly 4— 6-angular, with included free veinlets. Sori 

 numerous, occupying the upper part of the fertile fronds, scattered irregu- 

 larly, more or less immersed, on free or joined veinlets, mostly solitary 

 in the ultimate areolae. — Very variable, with the ultimate forms not rarely 

 occupying the very same rhizome. 



Eastern Malaya to Polynesia and Melanesia. 



Pieopeltis congregatifolia V. A. V. R. in Bull. Btz. II (1Q20), 166. 



BiiNNEMEljER's No. 8884 from Mt. Koerintji (Su ma t r a), agrées very 

 well with this but it has the fronds somewhat firmer, rather subpapyraceous, 

 more acutely acuminate at the apex, somewhat broader and rounded to 

 slightly cordate at the base, and the sori somewhat larger. 



Pieopeltis Zippelii (BlJ Moore Ind., 348.— Polypodiiim Zippelii BL. 

 Flor. Jav. Il, 172, tab. LXXX ; V. A. V. R., Mal. Ferns 649. 



Alsoin Sumatra: Mt. Koe ri n t j i, in forest, ait. 1800— 2400 m. (H.A.B. 

 BuNNEMElJER Nos. 8430, 9554, 9583, 10288, 10292, 4 March-7 April 1920). 



Pieopeltis triquetra (BL.) V. A. V. R., Bull. Dép. Agr. 1. N., XXVII (1909), 

 9; Mal. Ferns & Ail. Supplem. 1,387.— Polypodiinn friqi/etnirnBL.,Enum. 

 PI. Jav. Il, 124; V. A. V. R., Mal. Ferns 650; C. Chr. Ind. Fil. 571. 



Sori in 2 rows between the main veins. — R. C. BAKHUIZEN \^AN DEN 

 Brink's No. 4131 from Mt. Salak (Java) has the sori of each pair with the 

 réceptacles nearly ail laterally confluent so as to form single rows ofoblong 

 sori between the main veins, parallel or subparaliel with the costa or margin. 



