Van Alderwerelt van Rosenburgh: Malayan Araceae 2. 199 



This completion is taken from the same spécimen cultivated in the 

 Buitenzorg Oardens, having fiowered afresh December 1919 and January 

 \920 — Pot/i os celatocaiilis N. E. Br. is said to hâve been discovered in 

 North Bornéo. 



Schismatoglottis silvestris, V. A. V. R, 



Herba 25—40 cm. alta, caudiculo usque + 15 cm. longo, '/a cm. 

 crasso. Foliorum petiolus 5—15 cm. longus, usque ad médium vel brevius 

 decidue membranaceo-vaginatus, parte superiore antice cristis 2 anguste 

 aliformibus, oppositis munitus, ceterum dense et minutissime glanduloso- 

 puberulus; lamina in sicco tenuiter herbacea, submembranacea, elliptica vel 

 ovata, ad vel infra médium latissima, T'/, — 15 X 4 — 7 cm., supra obscura, 

 immaculata, subtus pallidior, apice obtusiuscuia, basi rotundato-cuneata vel 

 late rotundata; costa venaeque primariae subtus dense et minutissime glan- 

 duloso-puberuiae; venae primariae + 8— 10 utrinque, ascendentes vel basilares 

 subhorizontales, sursum curvae, apice vena collectiva submarginali unitae; 

 venae secundariae tertiariaeque indistinctae, graciles. Pedunculus 2—4 cm. 

 longus. Spatha viridis vel pallide viridis; tubus obovoideo-fusiformis, 3\'2 cm. 

 longus; lamina convoluta conoideo-cylindracea, 3'/2 cm. longa, acuta. 

 Spadix 4^/4—5 cm. longus, albus vel pallide griseus; inflorescentia feminea 

 cylindracea, l'/2 cm. longa, V2 cm. crassa, basi obliqua, basi et apice 

 staminodiis breviter obconoideis vel clavatis munita; ovaria conoideo- 

 ovoidea; stigma sessile, crasse pulvinatum, rotundum; staminodia inter 

 ovaria non vidi; inflorescentia mascula a feminea interstitio l'/a cm. longo, 

 organis neutris sparsis, minute capitatis vel applanatis munito separata, 

 cylindracea, P/4— 2 cm. longa, 3 mm. crassa, parte apicali sterili brevissima, 

 breviter conoidea vel semiglobosa, II/2— 2 mm. longa; stamina parva; partis 

 apicalis sterilis staminodia breviter obconoideo-clavata, apice rotundato- 

 applanata. 



Distinct by the very short stérile apical portion of the masculine 

 inflorescence. 



Sumatra (Mt. Malintang, in forest, ait. Î200-I300m., H. A. B BiiNNE- 

 MEIJER Nos. 3813, 3850, 22 July 1918). 



Var. subcordata: A forma typica differt dimensionibus foliorum 

 aequalibus vel maioribus; petiolus usque 22'/2 cm. longus; lamina quam 

 in typica saepe pro ratione latior, 8V2 — 15 X 5'/2 — 9 cm., basi paullo 

 emarginata vel subcordata. Spatha cum spadice brevior, inflorescentiis 

 cum interstitio neutro (apice sterili inflorescentiae masculae excepto) pro 

 ratione abbreviatis. 



Sumatra {Mt. Talamau, in forest, ait. 500-900 m., H. A. BiiNNEMEljER 

 Nos. .387, 434, 24 — 25 April 1917). 



