1. Family: Apiaceae Lindl.
    1. Genus: Physotrichia Hiern
      1. Physotrichia muriculata (Welw. ex Hiern) S.Droop & C.C.Towns.

        This species is accepted, and its native range is W. & SW. Tanzania to S. Tropical Africa.

    [FTEA]

    Umbelliferae, C.C. Townsend. Flora of Tropical East Africa. 1989

    Habit
    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.
    Stem
    Stem and branches narrowly sulcate, the raised striae ± furnished with divergent, short scabrid hairs or finally ± glabrescent in advanced fruit.
    Leaves
    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.
    Inflorescences
    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.
    Calyx
    Calyx distinct, persistent, in fruit divergent or incurved, teeth lanceolate, ± 0.75 mm.
    Corolla
    Petals purplish black to brown, yellow, yellowish green or white, glabrous, ± 1.25 mm., with branched brownish vittae, broadly obovate-obcordate.
    Ovary
    Ovary prominently ridged, covered with small low whitish verruculae.
    Fruits
    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.
    Habitat
    In grassy places, sometimes burnt, on open hillsides with or without scattered trees, and grassy edges of forest track; 1500–2420 m.
    Distribution
    T4 T7
    [FZ]

    Umbelliferae, J. F. M. Cannon. Flora Zambesiaca 4. 1978

    Habit
    A very variable plant 0·5–1·5 m. high, with a woody or fleshy taproot.
    Stem
    Stem terete to angled, with fine to coarse grooving, normally bearing very fine muriculate spines, these most obvious in the younger parts and tending to become eroded in the older regions.
    Leaves
    Leaves up to 25 cm. long, pinnate, the leaflets varying from obtusely ovate through acutely lanceolate to narrowly lanceolate-oblong; leaflets decurrent on the rhachis and sometimes deeply lobed.
    Leaf margin
    Margins shallowly dentate to deeply serrate, with short mucronate tips.
    Note
    Muriculations present on the petiole, but becoming more hair-like on the veins of the inferior leaf surface.
    Inflorescences
    Umbels terminal and lateral; rays 8–13, 1–6 cm. long, somewhat irregular. Bracts up to 25 mm. long, several, muriculate, linear to subulate; bracteoles similar. Partial umbels with flowers on relatively robust pedicels.
    Corolla
    Petals yellowish.
    Fruits
    Fruit 10–12 × 5–6 mm., oblong-elliptic to narrowly obovate, strongly dorsiventrally compressed, with a papillate-muriculate surface; lateral wings 1·5–2 mm. wide, well developed.
    Seeds
    Seed confined to the top 3/4 of the mericarp; dorsal ribs filiform, very well developed.
    Stylopodium
    Stylopodium shortly conical with an undulate margin; styles short with clubbed stigmatic surfaces.
    Vittae
    Vittae 1 per interval and 2 in the commissural face, visible externally.
    Carpophore
    Carpophore divided to the base, but often missing after the dispersal of the mericarps.

    Images

    Distribution

    Native to:

    Angola, Malawi, Tanzania, Zambia, Zaïre

    Physotrichia muriculata (Welw. ex Hiern) S.Droop & C.C.Towns. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Bidgood, S. [5668], Tanzania K000468756
    Whyte [224], Malawi K000311059 Unknown type material
    Welwitsch, F.M.J. [2521], Angola Peucedanum muriculatum K000311253
    Welwitsch, F.M.J. [2520], Angola Peucedanum muriculatum K000311252

    First published in Kew Bull. 42: 587 (1987)

    Accepted by

    • Van Wyk, B.-E., Tilney, P.M. & Magee, A.R. (2013). African Apiaceae: a synopsis of the Apiaceae/Umbelliferae of Sub-Saharan Africa and Madagascar: 1- 317. Briza Academic Books, Pretoria.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Townsend, C.C. (1989). Flora of Tropical East Africa, Umbelliferae: 1-127.

    Literature

    Kew Backbone Distributions
    • Van Wyk, B.-E., Tilney, P.M. & Magee, A.R. (2013). African Apiaceae: a synopsis of the Apiaceae/Umbelliferae of Sub-Saharan Africa and Madagascar: 1- 317. Briza Academic Books, Pretoria.
    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    Flora of Tropical East Africa
    • Droop & Townsend in Kew Bulletin 42: 587 (1987).

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0