71 



specie?, and in gene^l appearance this species nearly approaches Aster 

 (Oalimeris) altaicus Willd., but it should truly belong to the section of 

 the Heteropappus. 



Heteropappus has no generic value but forms only a section of the 

 genus Aster, and there are more than one species of the section in Japan. 



Aster (Heteropappus) insularis Makino sp. nov. 



Biennial ? About 40cm or more high. Stem erect, glabrous, striate, 

 leafy, branched above ; branches ascending, striate, glabrous, leafy. Leaves : 

 cauline ones sparse, densely placed, ascending, spathulate-oblong, sessile, 

 slightly narrowed towards and more or less stem-clasping at' the base, entire, 

 not ciliated, rounded-obtuse with a very minute tapering point, entirely 

 glabrous, thickish in texture, about 5-6cm long, I-i-2cm broad in the lower 

 ones but upper ones gradually smaller and passing into the bracts, in- 

 distinctly triplinerved at the basal portion ; midrib straight ; veins loose and 

 not conspicuous. Corymb terminating branch, loosely peduncled ; peduncles 

 few or several, erect-patent, striate, glabrous throughout, bracteate, thickish 

 at the top ; bracts loosely dense, narrowly oblong, sessile, entire, obtuse with 

 a minute tapering point, glabrous, largest ones about 2cm long, 7mm broad. 

 Head about 3 J- 4cm in diameter, long-peduncled. Receptacle about 4mm 

 in diameter but becoming much broader in fruiting time, slightly 

 convex, foveolate, each foveola with scale-like border. Involucre depressed, 

 spreading, about 2cm in diameter ; involucral-bracfcs numerous, few-serial, 

 narrowly lanceolate, sharply acuminate, more or less unequal in length, 

 about 8-10mm long, glabrous, green and rather thickish above, scarious and 

 often, slightly denticula to-ciliated ; midrib nearly distinct ; veins delicate and 

 somewhat densely reticulate on both sides of the midrib, but invisible 

 superficially. Ray-flowers pistillate, numerous, patent : corolla bluish-lilac, 

 \\- l§cm long ; ligule oblong-lignlate, rounded-obtuse and 3-crenulate at the 

 apex, thin, 6-nervecl ; tubular part much shorter than the ligule, pilose 

 externally. Disk-flowers hermaphrodite, very numerous : corolla about 5-6mm 

 long, yellow ; lower tubular part shorter than the throat part, pilose above 

 as well as lower portion of the throat ; throat thin, campanulate ; lobes 5, 

 narrowly deltoid, acutish, bordered, sinuses unequal in depth. Anther 

 scarcely exserted, about 2mm long, obtuse at the base, connective-tip acutish 

 deltoid-ovate ; filament filiform, glabrous, hardly shorter than the anther. 

 Style straight, filiform, glabrous ; arms in the ray-flower narrowly lanceolate, 

 acutely obtuse at the apex, stigmatiferous on whole margin, but in the 

 disk-flower oblong-tongue-shaped, appendage much shorter than the stigmati- 



