— 178 — 



rotiindato-cuneata; folia intermedia erecta ; iiitermedia caulin^ paullo remota, 

 oblonga, abrupte longe cuspidata, semifacie exteriore integerrima vel parce 

 et minute serrulata, basi conspicue producta et rotundato-(vix incurvato-) 

 auriculata, semifacie interiore minute serru'ata, basi rotundata vel rotundato- 

 cuneata, intermedia maxima ± 2'/2 mm. longa, cuspide ± ^-3 longitudinis 

 laminae metiente; intermedia ramulorum minora, imbricata. minus abrupte 

 cuspidata, basi exteriore rotundata, basi interiore rotundato-cuneata, cuspide ± 

 longitudinis laminae. Spicae copiosae, ad ramuios terminales vel specie latérales 

 (ad ramuios brevissimos), tetragonae, solitariae velinterdum 2-nae, usque ad 

 2 cm. longae, + l'/2 mm. crassae; sporophylla ascendentia, ovata, acuminata, 

 carinata, pellucido-marginata, minute serrulata, usque ad ± 1 '/2 mm. longa; 

 macrosporae albae vel flavido-albidae, gibbis brevibus longioribusve, rectis 

 flexuosisve, ramosis reticulatisve graciliter rugulosae, apice applanata, crista 

 graciliter annuliformi cincta, costis radiatis carentibus; microsporae flavidae 

 vel pallide aurantiacae, gibbis bacilliformibus ornatae. 



By the root-fibres extending to beyond the central nodes apparently a 

 species of the Radicantes group but by the habit and ramification beionging 

 to the Ascendentes group. — Swamp in forest. 



Simaloer Island (Achmad No. 413, 1 May 1918). 



S e 1 a g i n e 1 1 a c o n s o b r i n a, v. A. v. R. 



Heterophyllum, Monostelicae, Ascendentes. — Gaules ascendentes, 30—50 

 cm. longi, copiose et irregulariter pinnatim ramosi, in sicco pallide fusci. 

 obtuse angulosi et leviter sulcati, parte interiore 2—3 mm. crassi; rachis 

 primaria cum rachidibus secundariis foliis lateralibus inclusis + 8—12 

 mm. lata; piiinae ascendentes, remotae, usque ad 20 cm. longae, longiores 

 pinnatae vel dichotomae; ramuli ultimi 'A— 3 cm. longi, 4—6 mm. lati. 

 Folia ubique heteromorpha; folia lateralia semiovato-oblonga, vix falcata, 

 integerrima vel apicem versus obsolète denticulata, spurie 2-nervia, semi- 

 facie superiore cellulis scleroticis pellucido-marginata ; lateralia rachidis 

 primariae patentia vel pauUo ascendentia, maxima + 5-6 mm. longa et 

 2'/2 — 3 mm. lata, obtusa vel obtusiuscula, basi superiore rotundata vel late 

 rotundato-cuneata, integerrima vel parce et minutissime serrulata, basi 

 inferiore auguste cuneata; lateralia ramulorum ultimoium similia sed minora, 

 proportione angustiora, conferta vel approximata, usque ad 3 mm. longa 

 et 1 mm lata, minus obtusa vel acutiuscula, basi superiore auguste rotundato- 

 cuneata; folia intermedia erecta; intermedia caulina remota, late oblonga, 

 subovata vel subobovata, abrupte cuspidata, minute serrulata, basi rotundata 

 vel rotundato-subcordata, vix obliqua, cuspide + ^/^ longitudinis laminae 

 metiente, folia maxima + 3 mm. longa; intermedia ramulorum minora, 

 imbricata, sensim (minus abrupte) et longius acuminato-cuspidata, basi 

 late adnata et utrinque subaequaliter cuneata. Spicae ad ramuios ultimos 

 terminales, simplices vel furcatae, solitariae vel 2-nae, tetragonae. usque 

 ad 2 cm. longae, \^/^ (demum usque ad 3) mm. crassae; sporophylla 

 ascendentia, demum patentia, deltoideo-ovata, usque ad 2 mm. longa, 

 acumi-nata, pellucido-marginata, minute serrulata, carinata; macrosporae 



