- 24 - 



longis, foliis lateralibus inclusis 5-7 mm latis, caule et rachi- 

 dibus latioribus, usque ad 10 mm latis. Folia imdique dimor- 

 pha; folia lateralia patentissima vel patentia, subtus pallide 

 micantia, oblonga, obtusiuscula vel subacuta, vix falcata, subrecta^ 

 basin versus vix dilatata, bas! superiore rotundato-cordata, infe- 

 riore rotundato-cordata vel -truncata, margine superiore minute 

 denticulata, inferiore integerrima sed apicem et basin versus in- 

 distincte denticulata : folia lateralia caulina subremota vel contigua, 

 maxima ca 4 — 5 mm longa, usque ad 2 mm lata, lateralia ra- 

 mulorum ultimorum conferta, imbricata, 21/2-31/2 mm longa et 

 1— 11/4 mm lata; folia intermedia erecta, imbricata, oblongo-ovata 

 vel -obovata, inaequilatera, ih incurvato-falcata, usque ad ca 2 mm 

 longa, apice subabrupte acuminata vel breviter cuspidata, margine 

 utrinque minute denticulata, basi interiore auguste rotundata vel 

 rotundato-cuneata, exteriore latiora, producta, auriculatocordata, 

 leviter hamato-incurvata. Spicae solitariae vel binae, terminales 

 vel in furcationibus superioribus axillares, usque ad P/o cm longae, 

 subquadrangulares, ca 2 mm crassae ; sporophylla isomorpha, ovata, 

 acuta, carinata, minute denticulata, erecto patentia, postica quam 

 antica pauUo majora, ca P/4 mm longa, inferiora demum patentia; 

 macrosporae flavido-albidae, verruculoso-rugulosae, gibbis liberis 

 ramosisque vel reticulato-connatis, costis apicalibus coronula cinc- 

 tis; microsporae coacervatim accumulatae sordide tlavidae ^vel 

 pallide aurantlacae, parce verruculosae. 



Resembles S. atroviridis Spring in man}^ respects but with 

 the latéral leaves hardly, if at ail, spuriously veined, and the inter- 

 medial leaves shortly acuminate. at best shortly cuspidate. . 



Bornéo (Bukit Lempai, Teysraann No. 8588). 



§eia£^âeieiia hi'ac*li>Siieg)li«iB'i««. r. /f . r. fl. 



Heterophyllum, Monostelicae^ a^ Radicantes. — Gaules plus 

 minusvedecurabentes vel subasceudentes, apicom vei'sus ascendentes, 

 ca 15 — 30 cm longi, pinnati, vel dichotomi et caulibus secundariis 

 pinnatis; raohis primaria subteres," leviter compressa, foliis late- 

 ralibus inclusis ca 5 -6 mm lata: pinnae erecto-patentes, brèves 

 vel usque ad 10 cm longae : pinnulae siinplices, furcatae vel 

 parce pinnatae ; ramuli ultimi usque ad II/2 cm loiigi et 3 mm 

 lati. Folia ubique dimorpha: folia lateralia caulina l'emota, 

 horizontalia, valde inaequilatera, maxima ca 3 mm longa et II/2 



