246 



AROIDEvK. 



Closely allied to 4. laminatum BLUME (BENTH. Fl. Hongk. p. 342) ; but 

 differs from it by the petiolate leaflets and by the lamina of the spatha ending 

 Avith a very short arista of 2 mm. in length. Also near Ariscema penicillatum 

 N. E. BROWN (in Journ. Linn. Soc. Bot. XVIII. (1881) p. 248, t. 5), but dis- 

 tinguishable from it by the very oblique ovoid ovary which are ascendingly 

 arranged and in having the spadix with the dark green penicillate apex. 



Arisaema kelung-insularis HAYATA sp. nov. (Fig. 88). Tu- 

 ber ____ Folia singula, lamina in ambitu rotunda ta radiatim 11-par- 

 tita, segnientis longe linearibus 30-35 cm. longis 1^ cm. latis apice 

 longe filiforme acuminatis basi attenuatis margine integris tenuis- 

 sime herbaceis, petiolis 40cm. longis teretibus deorsum purpureo- 

 marmoreis basi vaginatis scapum amplectautibus. Pedunculus floris 

 foeminei 18-20 cm. longus. Spatha basi tubiforinis fornicata 15cm. 

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

 filiformibus) sursum viridis albo-striata. Spadix cylindricus 22cm. 

 longus (exceptis stipitibus appendiculisque) 9 mm. latus utrinque trun- 

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

 basi 1 cm. in diametro, appendice clavato-cylindrico-columuiformi 

 5-6 cm. longa sursum latiore deorsum minus lata basi 2 mm. in 

 diametro sursum 3-4 mm. in diametro medio deorsum setosa, setis 

 mollis 7 mm. longis ascendentibus, a medio sursum lasvi apice rotun- 

 data. Fl. - : ovaria obconica sessilia hexagoniformia dense disposita ; 

 stigmata punctiformia. 



HAB. Ins. Kelung, leg. S. SASAKI, Mai. 1910. 



Near Ariscema formosana HAY., but differs from it by the 



HAYATA; a, 

 appendices of the spadices which are much thicker and rod-formed. a female spa- 



Arisgema ringens SCHOTT.; MATSUM. et HAYATA Enurn. PI. dix ' 

 Formos. p. 457. 



HAB. Kelung, leg. B. HAYATA et S. SASAKI, Juiii. 1912. 



Arissema Takeoi HAYATA sp. nov. Tuber depresso-globosum 2 cm. longum 

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

 basi squamis paucis obtectis, lamina pedatim 2-partita, partibus a se angulo 

 90" egressis circ. 10cm. longis unilateraliter segmentiferis, segmento singulo 



Fig. 88, 



Ariscema ke- 



