I EC. 1908.] MAKING.— OBSERV. ON THE FLORA OF JAPAN. 169 



Cynanchum nikoense (Maxim.) Makino. 



Vincetoxicum macrophyllum var. nikoense Maxim, in Mel. 

 Biol. IX. p. 791 (1876); Franch. et Sav. Enum. PI. Jap. II. p. 439. 



Vincetoxicum acuminatum Miq. Prol. Fl. Jap. p. 59, quoad 

 pi. Keiskei ; Franch. et Sav. Enum. PL Jap. I. p. 318, non Decne. 



Stem erect, not voluble, attaining about 27cm. in height, 

 minutely pubescent above. Leaves about 4 to 6 towards the 

 top of the stem, approximate, petiolate, ample, membranaceous, 

 subrotundate to elliptical, cuspidato-acuminate, very thinly 

 dispersed with minute hairs, minutely ciliated ; petiole minutely 

 pubescent. Inflorescens much shorter than leaves, terminal 

 and axillary; peduncle short. Flowers subdense, subumbellate, 

 10-1 4mm. across ; pedicel puberulent. Calyx small, deeph^ 5- 

 parted ; lobes lato-lanceolate, acutish, often subciliated, exceed- 

 ing the corolla-tube. Corolla glabrous ; lobes patent, angus- 

 tato-oblong, obtuse. Genital organs small. Follicles erect- 

 patent, not horizontally divaricate, about 7^— 9cm. long, angus- 

 tate, gradually long-attenuated above. 



Nom. Jap. Tachi-gashiwa (T. Makino). 



Hab. Japan. 



This differs from Cynanchum, grandifolium Hemsl. [= Vin- 

 cetoxicum macrophyllum Sieb. et Zucc.) which has the smaller 

 flower, hairj' corolla and flagello-voluble stem. 



Lythrum anceps (Koehne) Makino. 



Ly thrum salicaria a. intermedium A. gracilis a. angustius aa. 

 anceps Koehne in Engler's Bot. Jahrb. I. (1881) p. 327. 



Lythrum salicaria o-. anceps Koehne, Lythr. in Engler's Pfl.- 

 Reich. (1903) p. 76. 



Lythrum virgatum Miq. Prol. Fl. Jap. p. 149; Franch. et 

 Sav. Enum. PI. Jap. I. p. 167, non Linn. 



Nom. Jap. Miso-hagi, So-hagi. 



Hab. Japan. 



Common. 



Cucurbita Pepo Linn. Sp. PI. p. 1010; Ser. in DC. Prodr. 



