Junk i9io.] MAKINO— OBSEBV. ON THE FLORA OF JAPAN. 125 



This species has a resemblance in the inflorescence and the 

 form of the leaves to those of Aristolochia Clematitis Linn., but 

 other characters are entirely different ; it comes near A. debilis 

 Sieb. et Zucc, in which the leaves are narrower, the flowers 

 solitary, larger and deeper-coloured, and the calyx-lip simply 

 acuminate. 



Aristolochia (Hexodon) Kaempferi Willd. Sp. PL IV. 

 p. 152. 



forma lineata (Duchartre) Makino. 



Aristolochia lineata Duchartre in Rev. Hortic. ser. 4, III. 

 (1854), p. 284, tab. 15, et in DC. Prodr. XV. 1, p. 439 ; Franch. 

 et Sav. Enum. PI. Jap. I. p. 419. 



Nom. Jap. Nagaha-no-umanosuzukusa (nov.). 



Hah. Japan. 



This is an extreme form having the leaves which are an- 

 gustate in the midlobe, connected to the type by the intermediate 

 forms such as Franchet et Savatier's varr. longi folia and tri- 

 lobata (= forma longi folia m. and trilohata m.). 



Sedum (Seda genuina) Zentaro-Tashiroi Makino, sp. 

 nov. (Fig. XII.) 



A small perennial, caespitose, about 5— 12cm. in height, fleshy, 

 glabrous. Stems erect or ascending, but repent loosely ramose 

 and radicant with delicate white roots at the base, terete, light 

 green but purpurascent below. Leaves small, verticillate with 

 4 or rarely 5 (verticils apart), but sometimes loosely sparse 

 above, flaccid, green ; the lower ones and those of the sterile 

 stems obovato-spathulate, obtuse or subretuse at the apex, 

 attenuated into a petiole, about 3mm. long in the inferior small 

 ones but attaining about 13mm. in length in the superior larger 

 ones ; the upper ones subspathulato-linear, obtuse or acutish 

 at the apex, gradually narrowed below, attaining about 

 14mm. long. Cymes di-tri-chotomous ; branches erect-patent, 

 flexuous, rather loosely 2-4-flowered ; bracts leafy, linear, green. 

 Flowers shortly pedicellate, about 7-9mm. in diameter, yellow. 

 Sepals 5, unequal in size, linear or linear-lanceolate, obtuse, 



