874 



COMPOSITAE 



the median leaves long-petiolate, 20-35 cm. long, 6-10 cm. 

 wide, ovate or oblong, short-acuminate, rounded or gradually 

 narrowed to a long petiole, acutely toothed, the upper leaves 

 gradually smaller, narrowly oblong to lanceolate, acuminate 

 at both ends, subsessile; uppermost leaves linear, 3-5 mm. 

 long; heads 25-33 mm. across, long-pedunculate, many, in 

 large corymbs, the peduncles densely setulose; involucres sub- 

 globose, about 7 mm. long, the bracts 3-seriate, lanceolate, 

 acuminate, short-pilose, scarious on margin; ligulate corollas 

 blue-purple, 16-17 mm. long, 3-3.5 mm. wide; achenes pilose, 



about 3 mm. long. Aug.-Oct. Wet places; Honshu (Chu- 



goku Distr.) Kyushu. Korea, Manchuria, n. China, Mon- 

 golia, and Siberia. 



11. Aster tenuipes Makino. Kurumagiku. Stems 

 about 30 cm. long, short-pubescent, much branched; radical 

 leaves rosulate, withering before anthesis, oblanceolate, about 



7 cm. long, 2.5 mm. wide, acute, narrowed at base, coarsely 

 toothed toward tip, puberulent above, the cauline leaves many, 

 linear-lanceolate, about 5 cm. long, 6 mm. wide, acuminate, 

 narrowed at base, sessile, obsoletely 3-nerved, glabrous on both 

 sides, loosely toothed; heads solitary or to 3 on each branch, 

 about 2 cm. across, the branches slender, densely leaved, the 

 leaves linear, 6-15 mm. long, entire, resembling involucral 

 bracts; involucres about 7 mm. long; bracts 4-seriate, the outer 

 ovate, the inner narrowly oblong, obtuse, 1-nerved; ligulate 

 corollas about 9 mm. long, 1.5 mm. wide; achenes densely 



hairy. Aug. Honshu (s. Kinki Distr.); sometimes culd- 



vated in gardens. 



12. Aster ageratoides Turcz. A. trinervius Roxb., non 

 Gilib. ^NoYAMA-KiNGiKU. Very polymorphic species oc- 

 curring from e. Asia to India. 



Key to the varieties of A. ageratoides 



lA. Involucres about 1 cm. across; bracts viscid at tip; leaves oblong-ovate, rounded at base, sessile. 



2A. Stems 35-65 cm. long; heads in loose corymbs var. viscidulus 



2B. Stems 20-30 cm. long; heads solitary var. aipinus 



IB. Involucres smaller; bracts not viscid. 



3A. Leaves abruptly narrowed at base var. sugimotoi 



3B. Leaves cuneate at base. 



4A. Marginal florets with large tubular corollas var. tttbulosus 



4B. Marginal florets with ligulate corollas. 



5A. Stems and leaves densely pubescent; cauline leaves semidasping var. semiamplexicaulis 



5B. Stems and leaves scattered-pubescent. 



6A. Leaves broadly auriculate-clasping at base, lanceolate, long-acuminate var. yoshinaganiis 



6B. Leaves not auriculate-clasping at base. 



7A. Heads about 3 cm. across, white; involucres campanulate-globose, 7-8 mm. long var. robustus 



7B. Heads about 2.5 cm. across; involucres 4—5 mm. long. 



8A. Leaves abruptly narrowed on lower half; involucres tubular, about 4 mm. long; ligulate corollas white, rarely blue- 

 purple var. harae 



8B. Leaves gradually narrowed at base; involucres subglobose; ligulate corollas usually blue-purple. 



9A. Leaves oblong to ovate var. ovatus 



9B. Leaves linear to lanceolate. 



lOA. Leaves linear-lanceolate to lanceolate, about 10 cm. long, 15 mm. wide var. angustijolius 



lOB. Leaves linear, 3-6 cm. long, 2-5 mm. wide. 



1 1 A. Stems 20-90 cm. long, short-pUose var. ripensis 



1 IB. Stems 30-40 cm. long, setulose var. microcephalas 



Var. viscidulus (Makino) Kitam. A. trinervius var. viscid- median leaves approximate, ovate, 5.5-8 cm. long, 3-4 cm. 



ulus Makino; A. viscidulus (Makino) Makino Hakone- wide, acuminate, setulose on both sides, with raised netted 



GiKu, Miyama-kongiku. Rhizomes indistinct; stems tufted, veinlets, petiolate; heads about 16 mm. across; involucres 



35-65 cm. long, densely pubescent; median leaves many, ob- tubular, about 4 mm. long, the outer bracts small, the inner 



long, lanceolate, or ovate-oblong, 4-7 cm. long, 15-17 mm. obtuse; ligulate corollas about 6 mm. long, 2 mm. wide. 



wide, acute to acuminate, dilated and rounded at base, sub- Oct.-Nov. Woods in mountains; Honshu (s. Kanto and T6- 



trinerved, very sparsely mucronate-toothed, densely short- kaido Distr.). 



pilose on both sides, sometimes glandular-dotted beneath, Var. tubulosus (Makino) Ohwi. A. trinervius var. con- 



short-petiolate or sessile; heads 23-25 mm. across, in loose gestus forma tubulosus Makino; A. tubulosus (Makino) 



corymbs, long-pedunculate; involucres tubular-globose, about Kitam. Chokuzaki-yome-na. Stems 40-60 cm. long; 



5 mm. long; bracts 4-seriate, the outer very short, the median cauline leaves rather thick, oblong-lanceolate, 3-nerved, acumi- 



oblong, rounded at apex, scarious on margin, viscid above; nate, lustrous, glabrous to loosely short-pilose; heads 2-2.3 cm. 



ligulate corollas blue-purple, 12-13 mm. long, about 2.5 mm. across; involucres about 7 mm. long; ligulate corollas 10-11 



wide. July-Oct. Woods in mountains; Honshu (Kanto mm. long, tubular, bilabiate, purplish. Cultivated in gar- 



and e. Tokaido Distr.). dens. Forma albiflorus Kitam. Shirobana-chokdzaki- 



Var. aipinus Koidz. A. viscidulus var. aipinus (Koidz.) yome-na. Flowers white. 



Kitam. Takane-kongiku. Stems 20-30 cm. long; heads Var. semiamplexicaulis (Makino) Ohwi. Calimeris am- 



solitary. Alpine; Honshu (Akaishi Mts.). plexijolia Sieb. & Zucc; Atnphyrapis japonica Miq.; Aster tri- 



Var. sugimotoi (Kitam.) Kitam. A. sugimotoi Kitam.; nervius var. semiamplexicaulis Makino; A. semiamplexicaulis 



A. trinervius var. sugimotoi (Kitam.) Kitam.; A. ageratoides (Makino) Makino; A. ageratoides subsp. amplexifolius (Sieb. 



subsp. sugimotoi (Kitam.) Kitam. Akihagiku, Kiyosumi- & Zucc.) Kitam. Inakagiku, Yamashirogiku. Densely 



GIKU. Stoloniferous; stems about 50 cm. long, setulose; white-pubescent; cauline leaves oblong-lanceolate, 6-12 cm. 



