244 AEOIDE^. 



teuuissime membranaceis. Scapi petiolo brcviores 50cm. longi in partilms ma- 

 joribas vagina petioli invciluti. 8patha deorsum cylindrica latere uno ad Lasin 

 fissa erecta supra medium fornicata sm-sum viridis alljo-striata ad apicem longe 

 acmuinata ad capillimi 13 mm. longum abeuns supra medium alba infra medium 

 fusco-purpureo-striata alba. Spadis (floris masculini) cylinfbicus deorsum latior 

 excejjtis aiipendicidis 2 cm. longus sessilis basi cum floribus 4— .5 mm. latus apice 

 3 mm. latus, aiii^endice 4 cm. longa lineari-filiformi + recm-va deorsum latiore 



1 mm. lata molle setosa (setis mollis IJmm. longis Lorizontaliter vel descendente 

 patentibus), sursiun viridi angustiore apicc J mm. lata. Flores dense dispositi ; 

 stamina 2-aggregata, filamentis brevissimis ^ mm. longis, antberis brevissimc 

 apiculatis vel non apicidatis 2-locidaribiLs, locidis globosis ; iis staminum in- 

 feriorum minoribas ^ mm. latis, iis staminum superiorum majoribus | mm. latis. 

 Spadix floris fccminei cylincbicus 2cra. longus (exceptis appendicibus) sessilis 

 basi latior 1 cm. latirs sm-sum angiLstior 5 mm. latus, aiiiiendice 7 cm. longa 

 viricli deorsum latiore setosa, setis moUis horizontaliter vel clescendente paten- 

 tibus 3-4 mm. longis teretibus. Floi'es ^ dense dispositi ; ovaria obcuneata 



2 mm. longa apice trancato-conica rbomboidea, stigmate apiculiformi. PoUina 

 purpm-ca. 



Arisaema formosana Hayata form. stenophylla. Folii lamin;v radia- 

 tim ll-sectiT?, segmentis linearibus 25 cm. longis 6 mm. latis aiiice acuminatis- 

 simis basi attenuatis tenuissime membranaceis ; spatba quam siiadice angustior. 

 Bacca subviridis vel flavescens viiicUs depresso-liexagona vel trigona apice late 

 truncata bexagona vel trigona apice 6-7 mm. in diametro 6-7 mm. longa. 

 Semina rubra polygona 3 mm. longa 2^ mm. lata. 



Hab. Mt. Arisan, leg. S. Sasaki, Mai. 1913, (Xo. 5). 



Arissema grapsospadix HLwata sp. nov. (Tab. XYIL). Tuber oblongo- 

 ovoideum 4-5 cm. longmu 2-2^ cm. latum plus minus recm-vum, radicibus ad 

 totam faciem sitis filiformibus eramosis. Folia geminata vel ternata, altrum 

 longius altiTim brevius vel ajquilongum, basi petioli squamis vaginiformibus 2-3 

 involuta, petiolis basi vaginiformibas, partibus vaginiformibus se ampiectantibus 

 30-35 cm. longis usque ad basin fissis apice rotundatis infra apicem dorso partes j 

 teretes petiolorum emittentibus, partibus teretibus petiolorum 11 cm. longis, 

 lamina trifoliolata, foliolo terminali ovato-lanceolato vel oblongo-lanceolato 



