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19. Myosotis Linnaeus, Sp. Pl. 1: 131. 1753.
勿忘草属 wu wang cao shu
Herbs annual or perennial, short pubescent or glabrescent. Leaves alternate. Cymes becoming racemelike after anthesis, ebracteate or rarely with few bracts. Calyx 5-lobed or parted, slightly enlarged or not in fruit. Corolla blue or white, rarely light purple, usually salverform, rarely campanulate or funnelform; throat appendages 5, scalelike; lobes 5, spreading, rotund, margin convolute. Stamens included; anthers ovate to elliptic, apex obtuse. Ovary 4-parted. Style linear; stigma discoid, mucronate. Gynobase flat or slightly convex. Nutlets 4, usually ovate, appressed, lenticular, vertical, smooth, shiny; attachment scar basal.
About 50 species: Africa, Asia, Australia, Europe, North America; five species in China.
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| 1 |
Calyx 5-lobed for 1/2-2/3 its length, sparsely strigose outside. |
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(2) |
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Calyx 5-lobed nearly to base, densely pubescent with straight and hooked hairs. |
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(3) |
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| 2 (1) |
Pedicel 6-8 mm in fruit; nutlets ovoid; lower stem nodes without roots; leaf blade oblanceolate to oblong |
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2 Myosotis caespitosa |
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Pedicel to 22 mm in fruit; nutlets triangular; lower stem nodes with roots; leaf blade oblong to narrowly oblong |
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3 Myosotis bothriospermoides |
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| 3 (1) |
Stems usually diffuse; inflorescences few flowered; pedicel reflexed or recurved, to 15 mm; nutlet base with fleshy pubescent appendages |
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1 Myosotis sparsiflora |
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Stems erect; inflorescences many flowered; pedicel erect, 4-6 mm in fruit; nutlet base without appendages |
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(4) |
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| 4 (3) |
Rhizomes slender, producing separate lax sterile shoots to 10 cm tall and flowering stems |
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5 Myosotis krylovii |
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Rhizomes stout, producing 1 to several fertile stems 20-45 cm tall |
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4 Myosotis alpestris |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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