- sa - 



longi, foliis lateralibus inclusis ca 21/9 — 4 mm lati. Folia caiilina 

 isomorpha, remota, erecta, appressa, parva, ovata, acuta,basicordata 

 vel semicordata ; folia ramorum ramulorumque heteromorpha; folia 

 lateralia imbricata, subpatentia, crassa, subfalcato-oblonga, subtus 

 distincte spurio-venulosa, acuta, crasso-costata, raargine superiore 

 basin versus miiuite denticulata, basi superiore paullo dilatata, 

 cordato-rotundata, margine inferiore integerrima, basi inferiore 

 rotundato-cuneata; lateralia ramulorum ultimorum maxima ca 2 

 mm longa et fere 1 mm lata; lateralia rachidum secundariarum 

 relative latiora ; folia intermedia erecta, parallela, imbricata, sub- 

 recta, ovata, acuminata, modice carinata, subintegerrima vel mi- 

 nute denticulata, basi inferiore rotundato-cuneata, basi exteriore + 

 producta, satis auriculato-cordata, parée ciliolato-denticulata. Spicae 

 solitariae, longissimae, ca ()-15 cm longae vel longiores, irregula- 

 riter flexuosae, quadrangulares, ca II/2 — 2 mm crassae; sporophylla 

 ascendentia, demum patentia, triangulari-ovata, ca IV2 — 2 mm 

 longa, acuta, minute denticulata, carinata; microsporae albidae 

 vel flavido-aurantiacae, latere rotundato gibbis conicis, subcylin- 

 dricis vel stipitato-capitatis ornatae; macrosporae non vidi. 



Differs from S. caulescens Spring especially in liaving the 

 shoots less compoundly divided and the spikes extraordinarily 

 caudate-elongate. 



Bornéo [Mount Damus, Rallier No. 493). 



)«îe lapine lia IBailii'Bi. r. L r. 11. 



Heterophyllum, Monostelicae, b^ Intbrtextae.—F\diUt-à parva, 

 repens, repetite furcata, probabiliter caespitosa; caules ca Vs ™i^i 

 crassi, foliis lateralibus inclusis ca 3 mm lati; ramuli ultimi ca 

 2-6 mm longi et 1 — 2 mm lati. Folia undique heteromorpha; 

 folia lateralia undique remota, subpatentia, late ovata, fere aequi- 

 latera, obtusa, basi superiore rotundata, basi inferiore subcordata, 

 margine superiore basin versus minute piloso-denticulata, margine 

 inferiore integerrima; lateralia caulina maxima, ca 1^/4—2 mm 

 longa et IV4— IV2 ^^"''^"^ ^^^^J lateralia ramulorum ultimorum 

 usque ad 1 mm longa; folia intermedia ca 2-plo minora, erecta, 

 ovata, parallela, vix incurvato-falcata, acuminata, subcuspidata, 

 basi rotundata, basi exteriore non vel paullo producta, margine 

 inferiore minute denticulata, margine exteriore integerrima 

 vel apicem versus parce denticulata; intermedia caulina remota; 



