- 45 - 



distinctius pellucido-marginata et basi rotundato cuneata. ba^i 

 inferiure abrupte vel sensim cuneata et non deiiticulata ; fulia 

 intermedia erecta, appressa: Intermedia caiilina satis remota, 

 subfalcato-oblonga, cuspidatu-acuminata, subcariiiata, cuspide 1/4 

 longitudinis laminae metiente, marginibus pins minusve minute 

 denticulata, basi interiore rotundato-cuneata, basi exteriore auri- 

 culato-producta, auricula vix hamatoincurvata, folia raaxima ca 

 2 mm longa ; intermedia ramulorum ultimorum minora, imbricata, 

 basi exteriore satis cordato-producta. Spicae tetragonae, saepe 

 2-nae, usque ad 1 cm longae, ca II/2— 2 mm crassae; sporopbylla 

 deltoideo-ovata, acuta, {)ellucido-marginata, minute denticulata, 

 carinata, maxima ca 1 mm longa; macrosporae S. Grabowskyi 

 Warb. more; microsporae probabiliter desunt. 



Gelebes [Tondotondu^ Capt. van Vuuren's Exploration Excur- 

 sion. Rachmat No. 493). 



^eBa^'inelBa {graïKli^i. Itk., Fern AIL, 98. 



Heterophyllmn, Monostelicae, a4 Ascendentes.— Shoots erect 

 from a creeping base, the lower part simple, subcompressed or 

 obtusely angular, ca 3 — 5 mm thick, the upper part decompound, 

 suborbicular, broadly oblong or ovate in outline, ca 30 — 40 cm 

 long, pinnate towards the base, copiously dichotomous upward, 

 the main rachis flexuose et least in the upper half; pinnae 

 cuneate obovate or lanceolate-oblong, pinnate at the base, more 

 or less copiously dichotomous in the upper part, as are the 

 pinnulae, with the rachises flexuose; ultimate branchlets nume- 

 rous, crowded, ca 6—16 mm. broad including the latéral leaves. 

 Leaves heteromorphous ; of the stipe erect, adpressed ; of the 

 lower plane triangular-ovate, acute, the base subauriculate-cordate, 

 somewhat produced on the inner side ; of the upper plane oblong- 

 ovate, acuminate, the base ciliate, cordate or semicordate, produced 

 on the outer side ; leaves of the branched portion crowded ; of 

 the lower plane spreading; of the main rachis the largest, to ca 

 10 mm long by ca 3 mm. broad, linear-falcate, acute, the upper 

 side entire, pellucid-margined, ciliolate towards the rounded base, 

 the lower side entire, provided with — 2 ciliae at the rotundate- 

 truncate base; of the ultimate branchlets nearly equalsided, 

 rather rounded at the base, 41/2- 9 mm. long; 1 - 2 mm. broad; 

 of the upper plane erect, adpressed, oblong or obovate; of the 



