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5. Aster sect. Pseudocalimeris Kitamura, Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol. 13: 363. 1937.
假马兰组 jia ma lan zu
Heteropappus Lessing.
Herbs, perennial, biennial, or annual, simple or branched, erect, ascending, or decumbent. Leaves basal (withered at anthesis) and cauline; blade linear, oblong-lanceolate, oblanceolate, or spatulate-oblong to spatulate, margin flat, entire or remotely serrate or crenate, 1-veined. Capitula radiate, sometimes discoid, terminal, corymbose-paniculiform or solitary at ends of branches or stems. Involucres hemispheric or patelliform; phyllaries 2- or 3-seriate, subequal (outer sometimes shorter), not keeled, margin sometimes scarious. Receptacles flat. Ray florets 1-seriate, sometimes absent, 15-40, purple, lilac, blue, pink, or white; disk floret limb campanulate, narrowly campanulate, or funnelform, lobes unequal (1 lobe deeper). Achenes obovate or obovoid to obovate-oblong, compressed to flattened, 2-ribbed. Pappus of ray florets sometimes absent or few, short, of disk florets present, 1-3-seriate, persistent or deciduous, inner bristles acute (when present), outer series of free (rarely connate) short scales or bristles.
About 17 species: C and E Asia, E Europe; 12 species (three endemic) in China.
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| 1 |
Perennial herbs, rarely biennial; pappus of ray and disk florets identical |
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(2) |
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Annual or biennial herbs, sometimes also perennial (A. arenarius); pappus of ray florets usually short, sometimes absent or equaling that of disk |
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(6) |
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| 2 (1) |
Capitula discoid. |
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23 A. eligulatus |
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Capitula radiate |
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(3) |
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| 3 (2) |
Plants 2.5-7 cm, thickly taprooted. |
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22 A. boweri |
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Plants (3.5-)5-60(-100) cm, not taprooted |
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(4) |
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| 4 (3) |
Phyllary margin herbaceous or narrowly scarious. |
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20 A. asagrayi |
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Phyllary margin ± broadly scarious (at least inner series) |
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(5) |
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| 5 (4) |
Phyllary margin broadly scarious; stems erect; ray florets ca. 20. |
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19 A. altaicus |
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Phyllary margin broadly scarious in inner series; stems decumbent to ascending; ray florets (20-)25-35. |
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21 A. semiprostratus |
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| 6 (1) |
Leaves glabrous or glabrate (margin conspicuously ciliate) |
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(7) |
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Leaves hairy |
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(8) |
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| 7 (6) |
Stems erect; cauline leaves glabrate. |
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28 A. oldhamii |
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Stems procumbent; cauline leaves glabrous or sometimes sparsely strigose. |
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27 A. arenarius |
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| 8 (6) |
Plants 8-30 cm tall, branched from base, branches decumbent to ascending. |
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30 A. gouldii |
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Plants 10-50(-150) cm tall, branched from middle, branches ascending |
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(9) |
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| 9 (8) |
Pappus of ray florets long. |
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26 A. neobiennis |
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Pappus of ray florets absent or of short bristles (shorter than on disk florets); ray achene narrow, sterile |
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(10) |
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| 10 (9) |
Capitula 30-50 mm in diam.; middle cauline leaf margin coarsely serrate in upper part or entire. |
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25 A. meyendorffii |
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Capitula 10-25 mm in diam.; middle cauline leaf margin entire or crenate |
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(11) |
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| 11 (10) |
Ray pappus a crown of scales; cauline leaves oblong-lanceolate or linear, margin entire. |
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24 A. hispidus |
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Ray pappus a few short bristles or equaling that of disk; cauline leaves spatulate-oblong, margin crenate. |
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29 A. crenatifolius |
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List of lower taxa
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