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

24. Synotis ionodasys (Handel-Mazzetti) C. Jeffrey & Y. L. Chen, Kew Bull. 39: 320. 1984.

紫毛合耳菊 zi mao he er ju

Senecio ionodasys Handel-Mazzetti, Notizbl. Bot. Gart. Berlin-Dahlem 13: 637. 1937.

Subshrubs or herbs, rhizomatous. Stem solitary, erect, flexuous, to 100 cm tall, when young with dense rusty brown tomentum, glabrescent, leafless in lower part at anthesis. Leaf petiole 3-3.5 cm, prominently purplish brown setulose, basally slightly expanded, not auriculate; blade adaxially green, oblanceolate, obovate-oblanceolate, or elliptic, 8-23 × 2.5-8 cm, papery, abaxially densely whitish tomentose and brownish setulose on veins, adaxially thinly arachnoid with fugacious tomentum and sparsely scattered setulose especially on veins, pinnately veined, lateral veins 14-22, arcuate-ascending, furcate distally and excurrent in teeth, prominent abaxially, base cuneate-attenuate, margin sharply apiculate-serrate, apex shortly acuminate. Upper leaves shortly petiolate, gradually smaller. Capitula radiate, numerous, arranged in axillary and terminal compound corymbs; peduncles 5-15 mm, fulvous tomentose and purplish setulose. Involucres campanulate, 7-8 × 4-6 mm, calyculate; bracts of calyculus several, unequal, longest equaling phyllaries; phyllaries ca. 13, linear-lanceolate, ca. 1 mm wide, herbaceous, densely fulvous tomentose and often also purplish setulose, margin narrowly scarious, apically acute. Ray florets 14-20; corolla tube ca. 3.5 mm; lamina yellow, oblong, ca. 6 × 1.5 mm, 4- or 5-veined, 3-denticulate. Disk florets ca. 12; corolla yellow, ca. 7 mm, with ca. 3 mm tube and narrowly funnelform limb; lobes ovate-oblong, ca. 1 mm, apically acute. Anthers ca. 3 mm; anther tails ca. 1.5 × as long as antheropodia, appendages lanceolate; antheropodia elongated, basally dilated. Style branches ca. 1 mm, fringed with short papillae, terminal tuft barely differentiated. Achenes ca. 1.5 mm, glabrous or sparsely pubescent. Pappus white, ca. 6.5 mm. Fl. Feb-Oct.

● Forests, streamsides; 1200-2500 m. S Yunnan.


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