81 



Senecio (Cacalia) Makinoi 0. Winkler Diagn. composit. nov. Asiat. 

 Decas I. in Act. Hort. Petropol. XIII. Fasc. 1, 1893, p. 



Nom. Jap. O-momidzigasa (T. Makino), Tosa-no-momidziso (R. 

 Yatabe), Momidzigasa (Y. Iinuma). 



Hab. Prov Tosa : Nanokawa (T. Makino ! Jane 1885; K. Watanabe ! 

 July 1884 [June 1885 ?], herb. Sc. Coll. Imp. Univ. Tokyo) ; Prov. Mcjsashi : 

 Mt. Yokami-yama (T. Makino ! July 16, 1888), Mt. Buko-zan (T. Makino ! 

 July 1888). 



I have named it in memory of Yokusai Iinuma who is the author of 

 the well known " Sornoku-dzusetsu," and my species, as far as I know, 

 first appeared under the name of Momidzigasa on fol. 12-13 in vol. XVI 

 of the work. On this remarkable species, excellent descriptions have 

 been published by R. Yatabe and C. Winkler, in their works cited 

 above. 



Senecio scandens Ham. in D. Don Prodr. Fl. Nep. p. 178. 



Senecio chinensis DC. Prodr. VI. p. 363. 



Senecio hibernus Makino Notes on Jap. PI. XV. in Botan. Mag., 

 Tokyo, VI. 1892, p. 55. 



Nom. Jap. Taikin-giku, Yukimi-giku (T. Makino). 



Hab. Prov. Tosa: Koyaika (T. Makinoi Oct. 1885), Isl. Heshima 

 (Y. Yoshinagal Nov. 20, 1887), Akano, Aid, and Iyoki (T. Makino ! June 

 2, and Dec. 2-4, 1892). 



This species grows wild along mountain bases and hill-sides on 

 the Pacific coast in the province of Tosa in the island Shikoku, and it 

 there annually bears the abundant golden blossoms in November and 

 December. Thus it has a remarkably northwards distribution for a 

 tropical plant. 



Rotala (Hippuridium) Hippuris Makino sp. nov. 



A perennial aquatic herb. Rhizome terete, repent and radicant. 



Stem erect or ascending, 12-30 cm long, laxly branched often at the base 

 or occasionally at the middle, slender, terete, obscurely and finely striate, 

 glabrous, nodose, weak ; internode 2-10 mm sometimes 13 mm long. 

 Leaves verticillate, entire, glabrous, one-nerved ; submersed ones about 

 9-12-whorled, patent or slightly reflexed, very narrowly linear, 1 J-2J cm 

 long, j-J mm wide, thin, flaccid, bifid at the apex ; emersed ones shorter 

 and broader than the submersed ones, 7-12-whorled, but 6-5-whorled at 

 the summit, patent, linear-lanceolate to ovate-lanceolate, shortly narrowed 



