61 



Corra turioniferous ; tnriones globose, about pea-sized. The middle one 

 of leaf-segments smaller than both lateral ones ; petiole green, sparsely 

 nigropunctate (in my livitig specimen). Inflorescence exceeding the leaves, 

 the spathe green. 



Ariscema Thunhergii ^. heterophjllum Engl, in DO. Monogr. Phanerog. 

 IT. p. 546 ; Diels in Engler's Bot. Jahrb. XXIX. p. 236. 



Ariscema Thunhergii Savat. in linuma's Somoku-Dzusetsii, ed. 2, XIX. 

 tab. 14 {Maidzuru-so), non Blnme. 



Hab. Prov. Musashi : Bot. Gard. Agric. Coll. Imp. Univ. Tokyo in 

 Komaba, cultivated. 



I have not found it yet in the wild state in Japan, but probably 

 indigenous. 



Arisaema (Trisccta) ternatipartitum Makiu.. Notes on Jap. PI, XV. 

 in Bot. Mag., Tokyo. VI. 1S92, p. 47. 



Oorni de[iressecl -globose, with fibrous roots at the neck, turioniferous ; 

 turiones globose or conical. Cataphylls thinly membranaceous, maculate, 

 loose, obtuse at the apex, the superior one tubular below, the mouth very 

 oblique. Leaves 2, or rarely 1, long-petiolate, trisected with narrow 

 sinuses ; segments about equalling in size, ses'^ile, acuminate, minutely scabro- 

 serrulate, thin, green above, glaucous beneath, immaculate ; the middle 

 segment rhombeo-ovate, cuneale towards the base, 7-16 cm. long, 3-9 cm. 

 broad ; lateral segments more or less oblique in form, elliptical-ovate, or 

 ovate, or broadly ovate, 6i-16 cm. long, 3-9.1 cm. wide ; midrib prominent 

 beneath ; lateral-veins many, erect-patent, connecting by an intramarginal 

 vein which is accom[)anied by an accessory vein closed to the margin ; 

 veinlets copiously anastomosing ; petiole cylindrically vaginate below with 

 an oblique mouth above, the free portion slender, about 7-21 cm. long, often 

 longer than the vaginate portion. Peduncle erect, cylindrical, lower than 

 the knives but often exceeding the leaves in flower. Spathe erect ; the 

 tube convolute and cylindrical-tidjular, about .5 cm. long, dark-purple, the 

 mouth suddenly truncate with auriculately dilated and revolute margins ; 

 the limb deltoid-ovate, or oblong-ovate, acute or more or less shortly acu- 

 minate, fornica to-deflected, dark-pnr[)le, about 6-8 cm. long. Spadix uni 

 sexual, conico-cylindrical, subsessile, 1-^— l|cm. long, many-flowered; append- 

 age shortly (about 8 mm. long) stipitate, exceeding the spathe-mouth , cylin- 

 drical-subclavate, thickish and abruptly truncate at the base, 3|-4cm. long 



