Thesium albomontanum Compton
  • Trans. Roy. Soc. South Africa 19: 281 (1931) 


Cite taxon page as 'WFO (2023): Thesium albomontanum Compton. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001134313. Accessed on: 03 Dec 2023'

Local Descriptions

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Diagnostic Description

The general aspect of T. albomontanum is distinct from that of any other species and recalls that of certain Euphorbias; the low bushes are densely and intricately branched and the stems are thick and rigid. The flowers are very similar to those of T. commutatum Sond. in form and size, but they are borne in larger numbers in the cluster and are slightly more fleshy; the bracts, moreover, have quite entire margins, whereas those in T. commutatum are fimbriate. My plants were reported upon at Kew as 'T. commutatum Sond., though stems thicker than sp. in Kew Herb.' I have carefully compared the plant with Wolley-Dod 3015, Bolus 8000, and Schlechter 10235, in the Herb. Bolus, all vouched for as T. commutatum by Dr. A. W. Hill, and I conclude that my plant is quite distinct. Schlechter 10235 is from a similar locality (Cold Bokkeveld, 5800 ft.) and would be expected to approximate to mine if an identical species.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    Morphology

    Frutex erectus ramosus alt. 1 ped. Caules duri rigidi glabri, foliorum basibus decurrentibus striati, diam. ad 1/4 in., permanente virentes. Folia patentia rigida triangularia acuta long. 1-1/2 lin. Flores 5-10 dense aggregata. Bracteae glabrae, marginibus integris, oblongae obtusae, long. 1 lin., lat, 1/2 lin., quisque paullo quam florem breviora: bracteolae angustiores, leviter carinatae, marginibus integris. Perianthii segmenta long. 1/2 lin., triangularia, textura succulenta, marginibus minute papillaris. Antherae long. 1/8 lin., ad perianthium capillis adhaerentes. Stylus long. c. 1/16 lin. Robust, twiggy shrublet to 30 cm. Leaves reduced, scale-like. Flowers in small, globose heads, minute, white.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 1
    • ]. 

    Habitat

    Rocky sandstone slopes.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Distribution

    Cold Bokkeveld to Witteberg. Summit of Witteberg.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 
    e-Flora of South AfricaMorphology

    Frutex erectus ramosus alt. 1 ped. Caules duri rigidi glabri, foliorum basibus decurrentibus striati, diam. ad 1/4 in., permanente virentes. Folia patentia rigida triangularia acuta long. 1-1/2 lin. Flores 5-10 dense aggregata. Bracteae glabrae, marginibus integris, oblongae obtusae, long. 1 lin., lat, 1/2 lin., quisque paullo quam florem breviora: bracteolae angustiores, leviter carinatae, marginibus integris. Perianthii segmenta long. 1/2 lin., triangularia, textura succulenta, marginibus minute papillaris. Antherae long. 1/8 lin., ad perianthium capillis adhaerentes. Stylus long. c. 1/16 lin. Robust, twiggy shrublet to 30 cm. Leaves reduced, scale-like. Flowers in small, globose heads, minute, white. Robust, twiggy shrublet to 30 cm. Leaves reduced, scale-like. Flowers in small, globose heads, minute, white.

    Diagnostic Description

    The general aspect of T. albomontanum is distinct from that of any other species and recalls that of certain Euphorbias; the low bushes are densely and intricately branched and the stems are thick and rigid. The flowers are very similar to those of T. commutatum Sond. in form and size, but they are borne in larger numbers in the cluster and are slightly more fleshy; the bracts, moreover, have quite entire margins, whereas those in T. commutatum are fimbriate. My plants were reported upon at Kew as 'T. commutatum Sond., though stems thicker than sp. in Kew Herb.' I have carefully compared the plant with Wolley-Dod 3015, Bolus 8000, and Schlechter 10235, in the Herb. Bolus, all vouched for as T. commutatum by Dr. A. W. Hill, and I conclude that my plant is quite distinct. Schlechter 10235 is from a similar locality (Cold Bokkeveld, 5800 ft.) and would be expected to approximate to mine if an identical species.

    Habitat

    Rocky sandstone slopes.

    Distribution

    Cold Bokkeveld to Witteberg. Summit of Witteberg. Summit of Witteberg.

      Bibliography

     Information From

    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • A All Rights Reserved
    Santalaceae
    https://powo.science.kew.org/
    World Flora Online Data. 2022.
    • B CC0 1.0 Universal (CC0 1.0).
    Vahliaceae
    http://www.worldfloraonline.org/organisation/Vahliaceae
    World Flora Online Data. 2021.
    • C CC0 1.0 Universal (CC0 1.0).