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FOC | Family List | FOC Vol. 20-21 | Asteraceae

112. Emilia Cassini, Bull. Sci. Soc. Philom. Paris. 1817: 68. 1817.

一点红属 yi dian hong shu

Authors: Yilin Chen, Bertil Nordenstam & Charles Jeffrey

Herbs annual or perennial, with fibrous roots, mostly subglabrous. Stems erect, branched or simple. Leaves mostly radical, alternate, simple, petiolate or sessile. Capitula discoid or radiate, homogamous or heterogamous, in terminal corymbs, sometimes solitary, without calyculus. Involucres cylindric; phyllaries uniseriate, free or basally connate. Receptacle flat, glabrous. Ray florets yellow; disk florets bisexual, yellow, orange, red, purple, pinkish, pale mauve, or white; corolla with funnelform limb and 5, usually narrow, lobes. Anther obtuse or slightly sagittate at base. Style branches truncate to obtuse, often penicillate, or with an appendage of fused papillae. Achenes elliptic-oblong, 5-ribbed, glabrous or hairy between ribs. Pappus of numerous white, slender bristles.

About 100 species: palaeotropical; five species (one introduced) in China.

1 Style branches ending in a conspicuous appendage; florets orange-red or scarlet, rarely yellow.   1 E. coccinea
+ Style branches truncate or subtruncate, or at most with a short conical appendage, without a conspicuous appendage of fused papillae; florets purplish, dull red, pale yellowish, pale orangish, or cream   (2)
2 (1) Achenes glabrous; lower leaves entire or laxly dentate.   5 E. prenanthoidea
+ Achenes pubescent; lower leaves lyrately lobed or strongly dentate   (3)
3 (2) Florets cream, pallid yellow, or pale orange; corollas distinctly exceeding involucre.   4 E. praetermissa
+ Florets purple or dull red, hardly or distinctly exceeding involucre   (4)
4 (3) Lower leaves lyrate; involucres 3-4 × as long as broad, slightly shorter than or equaling corollas.   2 E. sonchifolia
+ Lower leaves strongly dentate; involucres 2-3 × as long as broad, ca. 3/4 as long as corollas.   3 E. fosbergii

Lower Taxa


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