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

18. Synotis guizhouensis C. Jeffrey & Y. L. Chen, Kew Bull. 39: 313. 1984.

黔合耳菊 qian he er ju

Herbs, rhizomatous. Rhizome woody, to 5 mm in diam., erect or ascending. Stem solitary, erect, ca. 130 cm tall, leafless in lower part, rather densely leafy above, simple, white arachnoid, glabrescent. Leaves shortly petiolate; petiole ca. 1 cm, fulvous pubescent and thinly arachnoid; blade oblanceolate-oblong, 8-15 × 1.5-2.5 cm, papery, abaxially thinly arachnoid, adaxially white arachnoid on midvein, pinnately veined, lateral veins 14-18, base attenuate, margin remotely shallowly to coarsely sinuate-dentate, with mucronulate teeth, apex acute or acute-acuminate. Upper leaves smaller; uppermost leaves sessile, linear, bractlike, 12-20 × 1-3 mm. Capitula radiate, solitary in axils of bractlike uppermost leaves, forming a narrow terminal raceme; peduncles 8-10 mm, densely arachnoid-tomentose; bracteoles 4 or 5, 3-5 mm. Involucres tubular, 6-7 × 2-3 mm, calyculate; bracts of calyculus 3 or 4, subulate, short; phyllaries 8-10, oblong, 1-1.5 mm wide, triangular-spreading, apically obtuse, and densely puberulent, subleathery, thinly arachnoid, margin broadly scarious. Ray florets 5; corolla tube ca. 7 mm; lamina yellow, oblong, ca. 3 × 1-1.5 mm, 6-veined, 4-denticulate. Disk florets 18 or 19; corolla ca. 10 mm, with ca. 2.5 mm tube and funnelform limb; lobes oblong-lanceolate, apically acute, papillose. Anthers ca. 4.5 mm; antheropodia stout, basally somewhat dilated; appendages ovate-lanceolate; anther tails ca. 2 × as long as antheropodia. Style branches ca. 2 mm, fringed with papillae, terminal tuft not evidently longer than laterals. Achenes ca. 3 mm, glabrous. Pappus pale straw-colored, ca. 11 mm. Fl. Sep.

● Montane forests; ca. 1600 m. Guizhou.


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