100 JUNCACE.T;. AROIDEJE. 



glabro, stigmate terminal! globoso 3-4 jinn, lato basi 3-lobato fulvo. 



HAB. Shintikucho : Talang, Taihcito, ad 1900 peel, alt., leg. S. YAMADA, 

 Aug. 1914. 



Near Lilium callosum S. et Z., but differs from it in the perianth-seg- 

 ments which are scarlet on the upper surface but light red on the back- 

 The segments of L. callosum are usually purple on the back. 



Juncaceas. 

 Juncus LINN. 



Juncus leptocladus HAYATA sp. nov. Annua. Caulis tenmssmms 

 glaber scaiidentissimus ramosissamus 26 cm. lougus subteres gracillimus. 

 Folia radicali a linear! a circ. 12cm. longa 1 mm. lata apice acuminata basi 

 plus minus vaginata dorso complanata glabcrrima margiue interiore tenuissime 

 recurva erecta tenuissima herbacea, vaginis 23 cm. longis latere uno fissis 

 margiue membranaceis. Flores laxissime cyniosi breve vel louge pedicellati 

 basi bractcis 2 instruct!, bractcis triangulari-ovatis apice acutis hyaliiiis 2 mm. 

 oiigis limm. latis glabris hand costatis hand nervosis. Perianthii segmenta 

 exteriora 3 lanceolato-lincaria G-i mm. longa | mm. lata apice acumiiiata glabra 

 late 1-costata margiiie hyalina, segmenta interiora lincari-lanceolata 4 mm. 

 longa mm. lata apice acuminata late 1-costata margine hyalina glabra. 

 Stamina 6, filament-is filiformibus 1 mm. lougis glabris basi se brevissinie con- 

 natis, antheris linearibus 1mm. longis T 3 o-mm. latis utrinque obtusis. Ovariuni 

 glabrum lineari-ovoideum circ. 1 mm. longum ^ mm. latum apice ad stylum 

 ^ mm. longum abcuns tri-sulcatum trigonum, stigniatibus 3-fidis. 



HAB. Arisan, ad 8000 ped. alt., leg. U. FAUKIE, Junio 1914. 



Somewhat near Juncus bufonius LINN., but widely different from it in 

 having far much longer perianth. 



Aroideae. 



Ariscema MART. 



Arissema arisanensis HAYATA sp. nov. Tuber depresso-globosum 2 cm. 

 lougum 3 cm. latum, radicibus a facie superiore tnberis oriundis teretibus. Caulis 

 cum spadice 30 cm. lougus glaber basi 13 mm. latus 1-2-vaginis iustructus 



