- 181 — 



pliylla of tlie iipper plane subhorizontal, somewliat remote, pectinate, 

 uneqiieal-sided, obliqiiely triangiilar-laiiceolate-obloiig, sliortly apiciilate- 

 aciiniinate, niiiiutely serriihite on the upper side ; of tlie lower plane suberect, 

 ovate, long-aciiniinale' niiniitely serrulate; maciospores yellowjsh-white, 

 smooth; rpicrospores pale-orange, smooth. 



S e 1 a g i n e 11 a f 1 a b e 1 1 i f o r m i s, v. A. v. R. 



Heterop/iylliim, Monostelicae, Bisulcatae.—CaulQS repentes, ± 30—50 

 cm. loiigi, pinnati vel furcati 'pinnatique, teretes vel subteretes (pauUo 

 compressi), in sicco laeves vel subsulcati, straminei vel pallide brunnei, 

 ^'4 — 174 mm- crassi, foliis lateralibus inclusis + 7 mm. lati; pinnae flabel- 

 liformes, dichotoniae vel pinnatae pinnulis flabelliformibus, 2 — SX^i^ircatis- 

 ramuli ultimi usque ad '^U—\ cm. longi et 3—4 mm. lati. Folia ubique 

 heteromorpha; folia lateralia oblonga; lateralia caulina remota, horizontalia 

 vel leviter deflexa, 4— 4V2 rnm. longa, 2'/2 mm. lata, subacuta, apicem 

 versus subserrulata, semifacie superiore in média parte integerrima, basin 

 late rotundato-cordatum versus sensim breviter ciliolata, semifacie inferiore 

 integerrima vel plus minusve, minute serrulata, basi auguste rotundata vel 

 rotundato-cuneata; lateralia ramulorum ultimorum minora, patentia, minus 

 remota, usque ad 2 mm. longa, obtusa, basi superiore rotundata; folia 

 intermedia erecta; intermedia caulina remota, subdeltoideo-ovata, + 2'/2 

 mm. longa, cuspidato-acuminata, minute serrulata vel basin rotundatam et 

 late adnatam versus subciliolata; intermedia ramulorum minora, contigua 

 vel vix imbricata, ovata, longius cuspidata, basi angustata. Spicae ad ramulos 

 solitariae, brèves, 2— 2'/2 mm. latae; sporophylla lateralia ascendentia, 

 lanceolato-oblonga, acuta. minute serrulata, basi pauUo imbricata, inferiora 

 quam superiora paullo maiora; intermedia suberecta, ovata, acuminata, 

 minute serrulata, carinata, inferiora quam superiora multo maiora, non vel 

 vix inaequilatera; macrosporae pallide flavidae, decidue punctato-verruculosae, 

 demum laeves; microsporae albidae, flavidae vel pallide aurantiacae, dense 

 capitato-verruculosae. 



By the dimensions intermediate between the Intertextae and Bisiilcatae 

 groups; in aspect near S. opaca Warb. 



Forest; epiphytical; ait. 1900 m. 



Sumatra (Mt. Sago, H. A. B. Bunnemeijer No. 4397, 8 August. 1918). 



Selaginella opaca, Warb., Mons., 1, 122; v. A. v. R., Mai. Fern 

 Ail., 174; 5. cerebriformis, v. A. v. R., Bull. Btz., 1912, Vil, 32; Mal. 

 Fern AIL, 187. 



Bunnemeijer's No. 2876 from Sumatra (Mt. Singgalang) proves that 

 my description of S. cerebriformis bas been based on a single pinna of 

 typical S. opaca but çonsidered by me as a portion of a small erect plant 

 of the Siiberosa group. 



Selaginella b a 1 i c a, v. A. v, R. 



Heterophyllum, Monostelica3, Bisulcatae. — CiiulQS repentes, inter pinnatimt 

 et dichotome ramosi, racliide primaria straminea, subtereti, in sicco supra 



