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 DICTYOPTER1S. Presl. 



Dictyopteris l<ihrii*<»«). r. A. r. H.: Pulypodium 

 Labrusca, Hk., Spec. Fil., V, 73 ? tah. CCLXXXY,B; Aspidium 

 Labrvsca Christ, in Ann. Btz., XV, 187. 



In the spécimens gatherecl in Bornéo by Dr. Nieuwenhuis 

 and déterminer! by Dr. Christ as Sagenia Labrusca (Ann. Btz.. 

 XX, 108) I could not flnd any trace of an indiisium. 



Var. ternata: Raciborski's plants gathered in Nusa 

 Kembangan (Java) hâve the fronds not 3-lobate iFlor. Btz., I, 

 109), but decidedly 3-foliate, with the central segment hastato- 

 3-fld with a broad, siimate, subcandate central lobe and 2 narrow, 

 + entire, acute latéral lobes; the latéral segments are free or 

 joined with the central une, upcurved, + entire, imequal-sided, 

 aciiminate, the base cuneate on the anterior, cordate on the lower 

 side. — Java. 



Dictyopteris (Arcypteris) pesitapliylla. c.A.v.K. 



Stipites + 30 cm. longi, cnm rachide brimnei vel atropur- 

 purei, minute fibrillosi et decidne paleacei, paleis paucis, brunneis 

 vel purpureis. Frondes 30 — 45 cm. longae, 15 — 25 cm. latae, 

 subcoriacese, pellucida?, glabra?, costis costnlisque prominent ibus, 

 venis distinctis, areolis numerosis, venas libéras includentibus. 

 Pinna terminalis 15 — 20 cm. longa. simplex, late ovata, acumi- 

 nata, rotundato- vel acnto-imdulata, basi late cimeata vel rotun- 

 data, plernmque 1 — 2-lobata, lobis erecto-patentibus, lanceolatis, 

 obtuse rotundatis vel acuminatis : pinna? latérales erecto-patentes, 

 2 utrinque, remotae, lato-lanceolatse, parte basiscopica producta, 

 apice acmninatae, margine intégra? vel undulatae, basi late cuneatse 

 ad rotundatae, pinna? intima? basi furcatae, lobo basiscopico obtuso 

 vel acuminato. Sori numerosi. irregulariter sparsi, plerumque 

 confluentes, indusiis nullis. 



New Guinea (Treub). • - After Christensen's natural System 

 this plant should be called Aspidium pentaphyllum, and after 

 Copeland's conception Tectaria pentaphylla, v. A. v. R. 



