20 THE BOTANICAL MAGAZINE. [Vo i. xxm. No. 263. 



Chrysanthemum boreale Makino. 



Chrysanthemum indicum var. boreale Makino in Bot. Mag., 

 Tokyo, XVI. (1902) p. 89. 



Perennial, attaining about 1\ m. in height. Stem erect, 

 subtrichotomously branched ; branches slender, striate, shortly 

 tomentoso-pubescent, often subtrichotomously ramulose above, 

 subflexuous. Leaves alternate, petiolate, light green, thin and 

 flaccid-herbaceous, broadly ovate in outline, acuminate, cordate 

 or nearly so or rounded at the base, pinnati- or subpalmato- 

 parted, with narrow or subclosed sinuses and aeiitely inciso- 

 dentate ovate to narrowly oblong about 3 5 or sub-7 lobes, 

 minutely thin-puberulent above, minutely pubescent and sparsely 

 glandular beneath, (pubes denser towards the midrib and veins), 

 3— 9 cm. long, 2|-8 cm. across, but smaller above ; petiole shorter 

 than the blade, narrow, tomentoso-pubescent, sometimes with 

 small stipule-form leaflets at the base. Cymes paniculato- 

 corymbose, sometimes subumbellate, man}* -branched ; branches 

 short, shortly tomentose; bracts leafy; bracteoles small and often 

 tripartite or linear. Heads small, numerous, densely collected, 

 about 10-15 mm. across, yellow, usually nutant after anthesis. 

 Involucre broadly campanulate or hemisphaerico-campanulate, 

 about 5—6 mm. long ; scales scarious but narrowly herbaceous 

 and viridescent in centre, puberulent but subglabrous in the 

 inner ones, obtuse, entire, the outer ones shorter and narrowly 

 ovate, the inner ones ovato- or oblong-lanceolate or oblong. 

 Receptacle ovoid-conical. Rev -florets small, 1— serial, spreading, 

 usually shorter or more or less longer than the disk of heads ; 

 corolla about 6-10 mm. long, the ligule narrowly oblong, ob- 

 tuse or 3- or sub-3-dentate at the apex. Disk-florets numer- 

 ous, yellow. Achenium oblong-obovate, 1 mm. long. 



Nom. Jap. Abura-giku, Awa-giku. 



Hab. Japan. 



Icon. Honzo-Dzufu, XIII. fol. 10, fig. dextra ; Somoku-Dzu- 

 setsu, XVII. fol. 22, fig. sinistr. 



Not uncommon in Central Japan. This seems to me to 

 come very near to Chrysanthemum lav andulas folium (Fisch.) m. 

 ( = Pyrethrum lavandulx folium Fisch. ex Trautv. in Act. Hort. 



