- 169 - 



P o 1 y p d i II m m u t a t u m, v. A. v. R. 



Eiipoly podium, P////;a/«.— Rhizoma brève. Stipites iisque ad 1 '/z cm. longi, 

 graciles, decidue glaiidiilosi, piiiiiis iiiferioribiis vnlde abrupte rediictis, 

 brevissiniis latissimisque, interrupte aiigusteqiie alati. Frondes îirmae, decidue 

 glandiilosae, iineares, 5 — 10 cm. longae, 3—6 mm. latae, obtusiusciilae, 

 pinnatae. Piniiae patentes vel subhorizontales, oblongae, usque ad 3 mm. 

 longae, 1— l'/a iii'Ti- latae, obtusae, integerrimae vel subrepandae, basi dec- 

 urreiites; piniiae inferiores non-reductae liberae, remotae; pinnae super- 

 riores plus minusve approximatae, basi confluentes; venae in pinnis soli- 

 tariae, simplices; glandulae pallidae. Sori cid basin venarum solitarii, al- 

 ternantes. 



Sori forming at length a continuons or interrupted zigzag Une hiding 

 the Costa (rachis). —Lime stone, in forest; ait. 2000 — 2500 m. 



Ceram {Ml. Moerkele, L. Rutten's Explor. Commiss., Coll. Kornassi 

 No. 1499, 1 July 1918). 



Polypodium Yoderi, Copel., in Phillipp. Journ., F, Supplem., 

 161; v. A. v. R., Mal. Ferns, 613. 



V a r. denudatum: Rhizoma squamis copiosis, pallide griseo-brun- 

 neis, iridescentibus vestitum; stipites cum rachidibus parce decidueque 

 pilosi; pinnulae a basi apicem versus sensim angustatae, non piloso-apic- 

 ulatae. — Ceram {Mi. Moerkele, L. Rutten's Explor. Comiss., Coll. Kornassi 

 No. 1498). 



Polypodium subfalcatum, Bl., Enum. PI. Jav. 11, 130; v. A. 

 V. R., Mal. Ferns, 599. 



ZoUinger's No. 2307, mentioned in Mett., Farng., I, Polypod., 52, lias, 

 like most of the spécimens occurring in the Buitenzorg Herbarium, the 

 rachis at length rough by the thick, persistent, conical or tuberculiform 

 bases of fallen hairs. 



Polypodium P r a i n i i (Bedd.), C. Chr., Ind. Fill , 556; v. A. v. R., 

 Mal. Ferns, 617; Qoniophlebiiim Prainii, Bedd., in Journ. of Bot., XXXI, 226. 



This species is unknown to me. — H. A. B. Biinnemeijer's No. 5420û 

 from Sumatra {Mt. Talang taras Talang), w^hich may be a distinct spec- 

 ies, agrées in several respects with the diagnosis of this but it differs by the 

 foUowing characters not mentioned in Beddome's diagnosis: Rhizome wide- 

 creeping, the scales squarrose; stipes shorter and, like the rachis, densely 

 fibrillose when young, soon naked, the fibrils red-brown, those of the rachis 

 intermixed with a few long-ciliate, shortly lanceolate, brown squamules; 

 rachis soon naked; pinnae horizontal, distinctly crenate or even subdentate 

 towards the acuminate apex, slightly narrowed towards the adnate base and 

 then slightly dilated again; lower pinnae somewhat deflexed, rounded at 

 the lower base; surfaces sparingly fibrillose when young, soon naked. 



