AROIDE.t:. 



241 



Ariscema M.\.rt. 



Arisaema brachyspatha Hayata sp. uov. (Fig. S6). Folia cum scapo 

 basi squamis vaginiformiLas 3-4 involuta, squamis liyalinis tenuissimis sursum 

 pm-pureo-maculato-iiunctatis extimis 3cm. longis in explicato 18 mm. latis apice 

 rotuiidatis intimis longissimis 15cm. longis apice acuminatis basi vaginiformibus. 

 Folia solitaria lamina bipartita, partibas basi a se 

 angulo 80° divaricatis, inter partas foliolo imo sessili 

 instructa, partibiis piunatis vcl pinnatitidis, pinnis 

 partis singula^ secundum latei"e interiore dispositis a 

 se 1 cm. remotis infimis iougissiniis lanceolatis 9cm. 

 longis 18 mm. latis apice acumiuatissimis sessilibus 

 margine tenuissime iim-pureo-marginatis minute 

 denticirlato-ci-enulatis, pinnis superioribus minoi-ibiLs, 

 petiolis 35 cm. longis vaginiformibus, partibus vagini- 

 formibus 30 cm. longis scapum amplectantibus. Scapi 

 singuli cum spatha 35cm. longi vagina petioli in- 

 voluti. Spatha suberecta deorsiun tubiformis 6 cm. 

 longa in explicato 2 cm. lata, partibus tubiformibus 

 2-3 cm. longis, hxmiua 3cm. louga apice caudato- 

 acuminatissima basi plus minus contracta. Spadix 

 iiorum masculinorum cylindricus sessilis l^cm. longus 

 (exceptis appendicibus) SJ mm. latus (cum floribus), 

 tloribus dense dispositis, appendice suberecta longe 

 exserta plas minus recurva 6 cm. longa basi 2| mm. lata ghibra hxjvi columnari 

 sursum gradatim attenuata subtiliformi apice viridi. Flores $ '■ dense dispositi ; 

 stamina 3-aggregata, filamentis brevissimis l mm. latis ^^ mm. longis, antlieris 

 rcniformibus §mm. latis gOim-longis apice muci-onatis basi cordatis 2-locuIaribus. 



Hab. Fokieu : Kozan, leg. S. Nagasawa, Aprili. 1910, (No. 216). 



Near yiriscema Tlmnbergii Blume, but ditfers from that by the much 

 shorter not fornicate spatha; which are completely tubiformed towards the base. 

 In A. Tliunbergii, the spatha is cleft on one side, and the raargin of the cleft 

 is imbricate. 



Arisaema consanguineum Schott; Hook. f. Fl. Brit. Ind. VI. p. 505. 



Fig. 86, Ansinma 

 bi-ac/njSpatha IIayata ; a, 

 a male spadix ; b, a luale 

 flower with two stainens; 

 c, aiiotlier male flower 

 witli tliree stamens. 



