Physotrichia muriculata (Welw. ex Hiern) S.Droop & C.C.Towns.
  • Kew Bull.


Cite taxon page as 'WFO (2020): Physotrichia muriculata (Welw. ex Hiern) S.Droop & C.C.Towns. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000390963. Accessed on: 26 Oct 2020'

Morphology

Fruit glabrous but shallowly verruculose (less apparent in mature fruit), brownish, elliptic-obovate, ± 5–9 × 5–7 mm., rounded above and below or slightly emarginate at the apex, margins thick, fertile centre ± 2.5 mm. wide; commissural vittae 2, long, sometimes rather obscured by overlying tissue; stylopodia conical, purplish; styles very short, divergent, shorter than the stylopodia, glabrous; carpophore deeply divided.

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    Ovary prominently ridged, covered with small low whitish verruculae.

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    Petals purplish black to brown, yellow, yellowish green or white, glabrous, ± 1.25 mm., with branched brownish vittae, broadly obovate-obcordate.

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    Stout dingy or grey-green perennial herb, often ± purplish suffused, 0.3–1.2 m., branched from near the base upwards with long, ascending branches, or in taller forms often branched only above.

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    Calyx distinct, persistent, in fruit divergent or incurved, teeth lanceolate, ± 0.75 mm.

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    Inflorescence polygamous; umbels with 10–18 subequal to very unequal scabrid, sulcate rays 1–5 cm. long; involucre of 4–10 linear to lanceolate, 3–18 mm., ciliate bracts; partial umbels ± 10–35-flowered, pedicels scabrid, 2–7 mm.; involucel of 4–10 linear to elliptic, 2–15 mm., ciliate bracteoles; peduncles 6–14 cm., sulcate, scabrid-hairy.

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    Basal leaves ± 10–50 × 9–19 cm., lamina broadly oblong-elliptic to oblong-ovate, 1–2-pinnatisect, the pinnae broadly decurrent along the rhachis, simple to pinnatisect with 1–2 pairs of pinnules; lobes oblong to elliptic, ± 0.7–8 × 0.5–3 cm., irregularly denticulate, prominently nerved, ± densely covered with short scabrid hairs, sometimes ± glabrescent in fruit; petiole none in short forms, up to 30 cm. in tall ones, sheath short and broad to narrow and tapering, striate, scabrid to subglabrous; stem leaves usually sessile, rapidly reducing in size, pinnatisect or trisect, more rarely the uppermost simple and bract-like.

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    Stem and branches narrowly sulcate, the raised striae ± furnished with divergent, short scabrid hairs or finally ± glabrescent in advanced fruit.

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     Information From

    Apiaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • B
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • C CC0 1.0 Universal (CC0 1.0).