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125. Galatella Cassini in F. Cuvier, Dict. Sci. Nat. 37: 463, 488. 1825.
乳菀属 ru wan shu
Authors: Yilin Chen & Luc Brouillet
Aster subg. Galatea Cassini, Bull. Sci. Soc. Philom. Paris 1818: 165. 1818; Crinitaria Cassini.
Herbs, perennial; rhizome robust. Stems erect or ascending, usually branched above, rarely simple. Leaves sessile, blade oblong or lanceolate to linear, often gland-dotted, lower 3-veined, mid and upper 1-veined, margin entire, often recurved. Capitula radiate, sometimes discoid, small or medium-sized, in corymbiform synflorescences, rarely solitary. Involucre obconic or campanulate to almost hemispheric; phyllaries 3-5-seriate, greenish or green along midvein, imbricate, membranous, glabrous or puberulent, 1-3-veined, margin usually scarious, outer lanceolate to lanceolate-ovate, apex acute, innermost oblong to oblong-lanceolate, margin more widely scarious, rounded or ± obtuse, apex sometimes acute. Receptacles slightly convex, alveolate, fimbriate. Ray florets sterile, without style, 5-20 in 1 series, rarely absent, lamina pinkish or bluish violet; disk florets bisexual, fertile, 5-60(-100), yellow, sometimes becoming pinkish violet, usually 1.5-2 × involucre length, limb funnelform, lobes 5, lanceolate or oblong-lanceolate; anther base obtuse, apical appendage lanceolate; style branch tip lanceolate or triangular. Achenes lanceolate or oblong, ± flattened, strigose, ribbed. Pappus 2(or 3)-seriate, of whitish, sometimes purplish tinged, unequal, ± stiff, barbellate bristles longer than achene, apex acute to ± clavate.
About 40-50 species: C and S Europe to NE Asia; 11 species in China.
The genus Crinitaria, often considered distinct (see Crinitina below), is typified by Chrysocoma biflora Linnaeus, a species that belongs to Galatella (Soják, Zprávy Krajsk. Vlastiv. Muz. Olomouci 215: 1-2. 1982).
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1 |
Leaves not gland-dotted, lower 3-veined, mid and upper 1-veined, or all 1-veined; plants glabrous, glabrate, or sparsely to ± densely arachnoid |
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(2) |
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Leaves gland-dotted on both surfaces or adaxially, sometimes inconspicuously so, lower and mid 3-veined, or mid and upper 1-veined; plants shortly papilliform hairy or glabrate |
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(5) |
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2 (1) |
Ray florets absent; leaves linear, 1-veined, upper setiform; phyllaries abaxially shortly arachnoid (partly glabrescent). |
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11 G. scoparia |
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Ray florets present; leaves lanceolate to oblanceolate or linear-lanceolate, usually 3-veined, upper (sometimes some mid) linear; phyllaries abaxially glabrate or glabrous |
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(3) |
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3 (2) |
Lower and mid leaves lanceolate to oblanceolate or linear-lanceolate. |
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9 G. hauptii |
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Lower and mid leaves linear-lanceolate |
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(4) |
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4 (3) |
Involucre subhemispheric; ray florets 15-20, light bluish violet; pappus brownish to pinkish. |
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8 G. tianschanica |
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Involucre broadly obconic; ray florets 10-15, pinkish violet; pappus yellowish. |
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10 G. angustissima |
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5 (1) |
Ray florets absent (rarely 1-4) |
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(6) |
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Ray florets 4-20, rarely absent |
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(7) |
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6 (5) |
Leaves oblong-lanceolate or lanceolate to linear-lanceolate, lower and mid 3-veined; capitula numerous in corymbiform synflorescences. |
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6 G. biflora |
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Leaves linear or linear-lanceolate, lower 3-veined, mid 1-veined; capitula solitary or 2 or 3 in corymbiform synflorescences. |
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7 G. regelii |
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7 (5) |
Ray florets 4-10, disk florets 10-15 |
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(8) |
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Ray florets 8-15, disk florets 24-50 |
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(9) |
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8 (7) |
Capitula numerous, usually in dense synflorescences; phyllaries 3-veined, rarely 1-veined, abaxially glabrate. |
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4 G. punctata |
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Capitula few, in loose synflorescences; phyllaries usually 1-veined, rarely partly 3-veined, abaxially ± shortly arachnoid. |
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5 G. fastigiiformis |
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9 (7) |
Leaf apex acuminate to long acuminate; plants 20-100 cm tall. |
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3 G. dahurica |
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Leaf apex shortly acuminate; plants 20-60 cm tall |
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(10) |
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10 (9) |
Pappus white, entirely or partly tinged pinkish violet; involucre broadly obconic or subhemispheric, 6-8 × 9-12 mm; phyllaries abaxially glabrate. |
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1 G. chromopappa |
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Pappus yellowish; involucre campanulate to hemispheric, 4-5 × 7-8 mm; phyllaries abaxially usually shortly arachnoid. |
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2 G. altaica |
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List of lower taxa
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