58 



incurved, ovate, oblong-ovate, or lanceolate-ovate, gradually attenuated above 

 into a long slender tail longer than the tube, 13-32 cm. long, thin, pallid- 

 green. Spadix unisexual, subconico-cylindrical, subsessile, nearly 2 cm. long, 

 many- flowered ; the appendage erect, much longer than the spadix, exceeding 

 the mouth of the sj)athe-tube, shortly stipitate, cylindrical-clavate with a 

 rounded apex, truncate at the base. Male flowers shortly stipitate, 4-6- 

 androus. Female flowers sessile ; ovary obovate, with a minute and sessile 

 stigma at the top. 



Hah. Prov. Tosa in Isl. Shikoku : Mt. Yokogura {T. Maldno\ June 

 4, 1887, June 1893); Idzumi at foot of Mt. Torigata (T. 31nJdno\ May 

 22, 1889). 



This species is found in Isl. Shikoku as quoted above. It is allied to 

 Ariscema serratum Schott (incl. A. japonicimi Bl.), distinguished principally 

 from the latter by the colour of the petiole and spathe, and long caudate 

 spathe-limb. Leaves occur in either entire or denticulate state, as in those 

 of AriscBma serratum Schott (including A. japonicnm Bl.), A. am^ireme 

 Maxim, and A. Sazensoo Makino {=:A. sikohianum Franch. et Sav.). 



Arisaema (Pedatisecta) amurense Maxim. Prim. Fl. Amur. p. 264 ; 

 Engl, in DC. Monogr. Phanerog. II. p. 549 ; Korshins. in Act. Hort. Petrop. 

 XII. p. 392. 



Corm depressed-globose, turioniferous ; turiones globose, about pea-sized. 

 Cataphylls thinly membranaceous. Leaves tall, 2, or sometimes 1, long- 

 petiolate, radiately pedatisected with .5- (rarely 6-) segments ; segments ovate- 

 oval to obovato-lanceolate, acuminate or shortly acuminate, entire {forma a. 

 integrifolium), or irregularly serrato-denticulate {forma h. denticulatum), the 

 middle one usually slightly larger and shortly petiolulate and cuneate towards 

 the base, the rest sessile and a little confluent at the base, green ; veins 

 erect-patent ; petiole long-vaginate, pallid-green. Spathe pallid-green, the 

 limb fornicate-incnrved, ovato-lanceolate. Spadix unisexual, the floriferous 

 portion about 1^-1| cm. long ; appendage erect, shortly stipitate, cylindrical, 

 clavate above, truncate below, a little higher than the spathe-tube. Male 

 flowers 2-4-androus. Berries scarlet, the rachis thick and conical. 



Hah. Prov. Shimotsuke : Mt. Nikko (Herb. ! Sc. Coll. Imp. Univ. 

 Tokyo, Oct. 8, 1879; T. Makino \ June 1901), Mt. Koshinzan {T. Makino \ 

 Sept. 12, 1901) ; Prov. Uzen : Mt. Yudono {R. Yatahe and S. Okuho ! Herb. 

 I. c. July 23, 1887) ; Prov. Echigo : Mt. Godzu {R. Yatahe and S. Okuho ! 

 Herb. I. c. Aug. 2, 1886). 



