

luiLim maxima usque ad 2 mm loiiga; folia intermedia erecta; 

 intermedia caulina remota, obloiiga, cuspidato-acuminata, remote 

 spinaloso-senulata, basi oblique rotundato-truncata, maxima ca 

 21/2 mm longa, cuspide ca 1/2 iongitudinis laminae metiente; 

 intermedia rachidum secundariarum similia, cuspide minutissime 

 serrulata; intermedia ramulorum ultimorum similia sed minora, 

 imbricata, remote serrulata, cuspide paullo longiore, basi exte- 

 riore rotimdata, interiore rotundato-cuneata. Spicae ca P/g -2 

 mm crassae; sporophylla subisomorpha, ovata, acuta, minute 

 denticulata, carinata, postica usque ad 2 mm longa ; macrosporae 

 albae, in macrosporangiis semper solum 2-nae, apice plana 

 ecostataque et corouula (crista annuliformi) cincta, latere basali 

 dense et graciliter rugulosae: microsporae tlavidae. latere basali 

 gibbis bacillifui'niibus vel stipitato-capitatis ornatae. 

 Banca {Mount Langir^ Teysraann No. 52). 



NeBai^liBella aiog>ei*ieroif!e.«, Mih,, Fern Ail.. 77. 



Heterophyllum ^ Monostelicac, a^ i^ac^^mw^es. — Spécimens occur- 

 ring in the Buitenzorg Herbarium are distinguished by the 

 following chai'acters not mentioned in Baker's diagnosis: Shoots 

 ascending from a proliably creeping base with the root-fibres 

 not extendi]ig to the central nodes, often confined to the base, 

 pinuate quite to the base; pinnae to 20 or rarely to 80 cm. 

 long, simple, forked, dichotomous or slightly pinnate, the lowest 

 not rarely elongated and growing out to a new shoot; main 

 and secondary rachises terete or obtusely quadrangular, Leaves 

 heteromorphous; of the lower plane horizontal oi' subspreading, 

 sublinear-falcate, rather bluntish, spuriously nerved, pale-glittering 

 beneath, with the uppei- edge pellucid margined and entire, 

 obsoletely denticulate at the broadly rounded or rotundate-cuneate 

 base, the lower edge entire except towards the very minntely 

 denticulate apex; of the upper plane 3 -- ô mm. long, more or 

 less acuminate, pellucid-margined, minutel\' denticulate, l'otundate- 

 cuneate at the base, those' of the main rachis not oi' hardly 

 irnbricate. Spikes 1 -6 cm. long, 8 — 41/2 mm. diam.: sporophylla 

 subulate-ovate, pellucid-margined, minutely serrulate ; macrospores 

 yellovvish-white, rather coarsel>' rugose with tlexuose, branched 

 or connected rumples, the apical ribs encircled i»y a ring-shaped 

 crest : microspores dirty-\-ello\v or pau'-orange, })rovided with 



