246 



Closely alliecl to ^- laminatum Blume (Bekth. ¥1. Hongk. p. 342) ; but 

 (lifters from it by the petiolate leaflets and by tlie lamina of the spatha ending 

 with a very short arista of 2 mni. in length. ^Vlso near Ariscema penicillatmn 

 K E. Browk (iu Jom-u. Liuu. Soc. Bot. XVIII. (1881) p. 248, t. 5), but dis- 

 tinguishable fi'om it by the very oblique ovoid ovary Avhicli are ascendingly 

 aiTanged and in having the sjiadix with tlie dark gi-een penicillate apex. 



Arisaema kelung-insularis Hayata sp. uov. (Fig. 88). Tu- ^ 



ber....Folia singida, lamina in ambitu rotundata radiatim 11-par- 

 tita, segmentis longe linearibus 30-35 cm. longis l^ cm. latis apice 

 longe filiforme acuminatis basi attenuatis margine integris tenuis- 

 sime herbaceis, petiolis 40 cm. longis teretibus deorsum pm"pm'eo- 

 marmoreis basi vaginatis scapum amplectantibus. Pedimculus floris 

 foeminei 18-20cm. longiLs. Spatlia basi tubiformis foruicata locm. 

 longa in explicato ad orem 4 cm. lata apice caudata (caudis apice 

 filiformilous) sm-sum viridis albo-striata. Spadix cylindricas 22 cm. 

 longns (exceptis stipitibus appendiculisque) 9 inm. latus utrinque truu- 

 catus dense ovariifer, stipite 15 mm. longo basi dilatato subconico 

 basi 1 cm. in diametro, appeudice clavato-cylindi-ico-columniformi 

 5-6 cm. longa sm-sum latiore deorsum miuas lata basi 2 mm. iu 

 diametro sursuni 3-4 mm. in diametro medio deorsum setosa, seti- 

 mollis 7mm. longis asceudentibus, a medio sm-sum lajvi ajace rotun- 

 data. Fl. ^ : ovaria olx^onica sessilia hexagoniformia dense disiiosita ; 

 stigmata puuctiformia. 



Hab. Ins. Kelung, leg. S. Sasaki, Mai. 1910. 



Near Ariscema /bnnosana Hay., but difiers from it by thc ''"'i7-"»««^<"''« 



IIayata ; •■», 

 appendices of the spadices which are uuich thicker and rod-formefl 



Fig. 88. 

 Aiisceina ie- 



^Matslji. et Hayata Euum. Pl. 



a fcmale spa- 

 <lix. 



Arissema ringens Schott 

 Formos. p. 4.57. 



Har. Kelung, leg. B. Hayata et S. SvsAKi.Juui. 1912. 



Arissema Takeoi Hayata sp. nov. Tubfr depresso-globo.sum 2 cm. longum 

 3 cm. latum per totam faciem radici-ferum. Folia solitaria, petiolis 68cm. longi^ 

 basi squamis paucis obtectis, lamiua pedatim 2-iiartita. partibus a se angido 

 90° egi'essis circ. 10 cm. lougis uuilateralitor segmeutiferis, segmento singulo 



