132 



J_ 



sicco fuscae vel olivaceae, flaccidae, lineari-lanceolatae, usque ad 75—100 



cm. longae, 4—8 cm. iatae, utrinque sensim 

 angustatae. integerriniae vel leviter iindul- 

 atae, acuminatae, acuniine anguste lineari, 

 infra apicem obtusiusculum prolifero, basi 

 longe decurrentes vel abrupte rotundato- 

 cuneatae et pauUo decurrentes ; costa prom- 

 inens, utrinque latere in vivo carinata, in 

 sicco plus minusve distincte, sed non sem- 

 per 2-suicata, subtus parce et minute fus- 

 co-squamulosa et rufo-fibrillosa, glabres- 

 cens; venae patentes, + IVj mm. distantes, 

 simplices vel furcatae. Sori '/a ~^/4 Partes 

 superiores frondium occupantes, longi, costa 



attingentes vel subattingentes, a 



margine 



paullo remoti, soris brevioribus paucis in- 

 termixti ; indusium juvénile in sicco olivac- 

 eum, demum brunneum,recurvatum. (Fig. a). 

 Epiphytical in forest; ait. 1000—1300 m. 

 Sumatra (H. A. B. Bunnemeijer, Lima Poe- 

 Fig. a. loeh Koia, Soengei Ajer Ramboetan No. 3427. 



27 June 1918; Mt. Malintang No. 4163,31 

 july 1918; Mt. Sago No. 4408, 8 August 1918). 



^ 



A s p 1 e n i u m b a t u e n s e, v. A. v. R., Bull. Dép. Agr. I. N., 1908, 

 XVIII, 13; Mal. Ferns, 443; A. Brooksii, Copel.. in Philipp. Journ., Vl^, 137. 



Under surface and costa when young provided with numerous scat- 

 tered, very minute, mostly forked or steliately branclied (3— 5-nate), fi- 

 brilliform brown hairs or squamules; verns more or less ascending. — Spéc- 

 imens from Sumatra {Lima Poeloeh Kota, Soengei Koeriman, H. A. B. 

 Bunnemeijer No. 3485; Bengkoelen, Lebong Tandai, C.J. Brooks No. 414/5) 

 hâve the rhizome and stipes when young provided with deciduous, fuscous, 

 acuminate-subulate squamules, and the very base of the fronds varying 

 from acute to bluntish (suddeniy cuneate). 



A duplicate A. Brooksii Copel. from Sarawak, kindly sent to me by C. J. 

 Brooks, proves that Brooks' Bofnean plant is but a form of A. batuense with 

 tiie very base of the fronds varying from bluntish (suddeniy cuneate) to 

 very blunt (more or less narrowly rotundate-truncate). — Copeland writes 

 „Stipitibus confertis, ..." and in a note he says ..spores more spiny", 

 — which may dépend on how it is examined. — Ali the spécimens quoted 

 above hâve the stipes not close but remote and the spores not spiny but 

 irregularly and more or less reticulately winged with the wings verry ir- 

 regularly incised into straight or often curved, acutely and broadly trian- 

 gular to narrowly subulate lobes more or less resembling spines, when 

 superficially observed. 



