238 AROIDE.E. 



cavinatis, (carina dorso acuta), ovarium firme amplcctantibus ; Lracteola anterior 

 tenuissime membranacea liyalina liaud carinata longe unguiculata apice dilatata, 

 ungui lineari l^mm. longo ;|mm. lato tenuissimo, jiarte dilatata oLlongo- 

 triangidari l^mm. longa Imm. lata apice cucnlliformi basi truncata abrupte 

 ad iinguem abeunti alabastrum floris complete involventi; bracteolre laterales 

 persistentes post anthesin fructus firme amplectantes, sed bractcola anterior 

 caducissima sub anthesin decidua. Perianthii tubus fusiformi-obovoideus 2- 

 3 mm. longus 1-1 J mm. latiis apice rostratus ibiciue subito cxpanstis ad limbum 

 abeims, limbo basi campanulatn 1 mm. alto, lobis lilieris iiateutibus obovato- 

 rotundatis 3 mm. longis 2^ mm. hxtis apice rotundatis basi subacutis margine 

 deorsum integerrimis sursum versus apicem denticidatis flavis. Stamina 3 lobis 

 perianthii opposita ad basin loborum adnata, filamentis brevissimis j mm. 

 longis totiusque latis dorso complanatis glabris, anthcris hxte rotundatis J mm. 

 longis latioribus apice profunde 2-lobatis basi cordatis extrorsum dehiscentibus, 

 counectivis latis, fasciculis pilorum moniliformium utroque latere basis filamen- 

 torum sitis. Ovarium elliptico-obovoideiim 2i mm. longum apice rotundatum, 

 stylo terminali erecto recto filiformi 2 mm. longo glabro apice 2-fido, ramis 

 erectis § mm. longis apice stigmatosis, stigmatilms dihxtatis peltatis ^ mm. in 

 diametro margine globuloso-ciliolatis. Cajisula obkmga 4 mm. longa 2^ mm. 

 Lita facie interiore plana facie exteriore convexa, semi-oblonga in sectione, 3-val- 

 vata, valvis liyalinis tenuibus membranaceis. Semina numerosissima fusiformia 

 ^ mm. longa flavescentia longitudinaliter tenuissime striata, striis castaneis. 



Hab. Toyen, leg. T. Kwakami et T. Soma, Oct. 1914. 



Closely allied X. pmidflora Willd.; Ijut, as far as is concerned the descrip- 

 tion of the same s^iecies given in Benth. Fh Hongk. p. 379, om- plant is distinctly 

 difierent from tlie Hongkong plant in having outer wingless perianth-segments 

 and inner unguiculate hood-formed ribless segment which is much thinner and 

 hyaline. X. pauciflora has " perianth-segments 2 outer narrow and acute, the 

 keel winged ; tlie tliird broad, Ijut witli a rather stifi' and prominent midrib." 



Aroideae. 



PotJios LlXN. 

 Pothos seemanni Schott (Fig. 84) ^Iatsum. et Hayata Enum. Pl. For- 



