minute denticulata, folia maxima ca 51/2 nini. longa et ca 23/4 mm. 

 lata ; lateralia ramulorura ultimorum subsimilia, contigua vel 

 imbricata, subfalcata, interrupte spurie venulosa, semifacie supe- 

 riore densius denticulata, anguste pellucido-marginata, basi rotun- 

 dato-cuneata, folia maxima ca 3 mm. longa; folia intermedia 

 erecta, appressa; intermedia rachidis primariae sat remota, oblique 

 cordato-oblonga, acuminata, vix aristata, minute denticulata, basi 

 2-aunculata, auricula interiore anguste rotundata, auricula exteriore 

 producta, late incurvata, folia maxima ca 3 — 31/4 mm. longa; 

 intermedia ramulorum ultimorum subsimilia, minora, imbricata, 

 breviter aristato-acuminata, pellucido-marginata, basi interiore vix 

 cordata, basi exteriore vix incurvata. Spicae subquadrangulares, 

 solitariae vel 2-nae, juvéniles ca 1^/2 mm. crassae, adultae cras- 

 siores; sporophylla erecta, subisomorpha, deltoideo-ovata, acuminata,- 

 minute denticulata, anguste pellucido-marginata, carinata, ventralia 

 maxima, usque ad 2 mm. longa, adulta patentia; macrosporae 

 adultae probabiliter rugulosae vel reticulatae, juvéniles pallide 

 llavo-fuscae ; raicrosporae 



Longest pinnae growing out to new shoots. —Resembles in 

 aspect S. Grabowskyi Warb., but the rnacrosporangia provided 

 with 4 macrospores purveyed with radiating apical ribs: micro- 

 sporangia piesent, but still too young in the examined plant. 



Java {Nirmala, C. A* Backer No. 10647). 



KcKaiiiiiel2(i siiiiiiZaii«. r.i.wBi. 



Heterophyllum, Pleiûstelicae. — Ga.ules erecti, vel e basi repente 

 ascendentes, 25 — 45 cm. longi, pinnati, vel parte inferioreS-stelica, 2 

 mm. crassa, in sicco straminea et irregulariter sulcata, simplices vel 

 furcati cum ramis pinnatis, foliis axillaribus inferioribus breviter 

 oblongis vel late ovatis, acuminatis, ad vel inframediam latissimis; 

 pinnae remotae, subovatae; pinnulae inferiores pinnatae, superio- 

 res simplices; ramuli ultimi pauci, remoti, usque ad P/o cm. longi, 

 parte interiore foliis lateralibiis inclusis 3 mm. lati. Folia hetero- 

 morpha ; folia caulina valde remota, foliis rachidum secundariarum 

 subsimilia sed minus obliqua; folia ramorum ramulorumque pel- 

 licudo-marginata ; folia lateralia patentia vel magis ascendentia, sub- 

 falcato-oblonga, basin versus integerrima vel subintegerrima, apicem 

 mucronulato-acuminatum versus breviter remoteque denticulata, 

 semifacie superiore subrotundata, basi cuneata, semifacie inferiore 



