— 174 — 



basi plus minusve dilatata; venae utriiique distincte prominentes, furcatae. 

 Sori longi, apicem basinque segmentorum fere attingentes; idusium tenue. 



Near^'pt. Walkeri Bk.—Foresr, ait. 1900 m. 



Sumatra {Mt. Merapi, H. A. B. Bùnnemeijer No. 4717, 18 September 1918). 



Pteris Wal 1 icli i ana, Agardh-, Rec. Spec., 69; v. A. v. R., Mal. 



Ferns. 372. 



The Buitenzorg Herbarium possesses of this species spécimens from 

 Britisli India, Java and New Guiiica. They are very différent in aspect and 

 may perhaps belong to verious species. The material, however, is too 

 insufficient for a thoiirough examination and séparation. — I cannot disting- 

 uish from this Pt. heterophlebia Kze, of which we possess an authentic 

 spécimen. 



S y n g r a m m a 1 u z o n i c a, v. A. v. R. 



Dictyogramma. — Rhïzomà breviter repens, castaneo-fibrillosum. Stipites 

 approximati, 15 — 55 cm. longi, castanei, supra canaliculati, basin versus 

 decidue fibrillosi. Frondes herbaceae, glabrae, triangulari-oblongae vel 

 -ovatae, 10—15 cm. longae, 5—10 cm. latae, fertiles stériles aequantes 

 vel non raro ininores, quam stériles longius stipitatae, obtusae ad acutae, 

 integerrimae, basi truncatae vel. rotundato-truncatae sed in média parte 

 abrupte breviter decurrentes (breviter cuneatae); costa basin versus valida, 

 subtus prominens, apice evancscens; venae Acrostichi more copiose anas- 

 tomosantes ; areolae plus minusve elongato-hexagonae, inferiores horizontales, 

 sequentes ascendentes, superiores costae parallelae. Sori copiosi, longi, 

 flcxuosi, ramosi, apicem versus plus minusve anastomosantes; paraphyses 

 clavatae, relative longe stipitatae. 



The spécimens were received under the name of Athyriiim (Dipiazium) 

 cordifolium Copel. which is quite another plant distinguished in having 

 the rhizome lanceolate-squamose, the veins arranged in branched groups, 

 with the opposite veinlets anastomosing at the apex, and the sori indusiate. 

 — Some of the sori of the quoted spécimens are suppressed and covered 

 with an indusium-like membrane which, after examination, proved to be 

 a layer of dried mucus coverlng aiso portions of the parenchyma and net 

 originating from the veins. 



Luzon {Mt. Siilu, E. Féni'ç; Mt. Binuang, M. Ramos <& G. Edano.— 

 Philipp. Bur. of Sci., Nos. 28367, 28645). 



T a p e i n i d i u m s u m a t r a n u m, v. A. v. R. 



Stipites usque ad 15 cm. vel plus longi, cum rachide glabri, in sicco 

 obscure fusci vel purpuraceo-brunnei. Frondes coriaceae, glabrae, deltoid- 

 eae, + 35 cm. longae et 27'/2 cm. latae, abrupte acuminatae, 2-pinnataeî 

 basi sub-3-pinnatifidae. Pinnae infra pinnam terminalem + 12 utrinque; 

 pinna terminalis deltoideo-lanceolata, profunde pinnatifida, segmentis super- 

 ioribus integerrimis, inferioribus dentatis, basi oblique cuneatis; piiniae 

 latérales patentes vel subhorizontales; pinnae infimae maximae, brefiter 



