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Madagascar Catalogue | Family List | Caryophyllales | Asteropeiaceae | Asteropeia | Species Page


Asteropeia labatii G.E. Schatz, Lowry & A.-E. Wolf
    Adansonia, ser. 3 21 (2): 260, (1999).

Asteropeia labatii
Living plant (Fruits): Labat et al. 3036

Credit: J.-N. Labat

  • Asteropeia micraster var. angustifolia H. Perrier

    Distribution: Endemic to Madagascar

    Bioclimate: Subhumid, Dry

    Vegetation Formation: Woodland, Forest

    Elevation (m): 500-999, 1000-1499, 1500-1999

    Province: Fianarantsoa, Toliara

    Protected Areas : Andringitra, Isalo

    Important sites outside protected areas: Itremo/Ambatofinandrahana

    Published Red List Status: EN A3cd (IUCN Red List treatment)

    Description: Asteropeia labatii is a member of the “A. micraster complex” by virtue of its sessile flowers subtended by bracteoles. It can be easily distinguished from both A. micraster and A. mcphersonii by its oblanceolate, subsessile leaves averaging 5 times as long as wide, and with the lamina glaucous when young, its flowers subtended by 8-12 bracteoles, and its calyx lobes that exceed 5 mm long in fruit.

    Shrub to small tortuous tree to 8 m tall, to 20(-25) cm dbh, bark to 4 cm thick, deeply fissured. Leaves subsessile, petiole to 1 mm long, terete, lamina glaucous above when young, becoming chartaceous to somewhat coriaceous, oblanceolate to narrowly oblanceolate, 1.7-8.5 X 0.5-1.9(-2.2) cm, base long attenuate with the lamina decurrent along petiole to nearly the base, margin slightly revolute, apex obtuse to rounded, occasionally emarginate, venation mostly obscure with 4-5 secondary veins per side. Inflorescences axillary at apex of stem and thus appearing terminal, solitary to as many as 7 in a cluster, the main axis to 11.6 cm long, with 7-10 secondary axes perpendicular to the main axis, the basal branch to 7.2 cm long, sometimes with short tertiary branches, the remaining secondary branches progressively shorter; flowers sessile, subtended by 8-12 tightly imbricate acute bracteoles; calyx of 5 sepals fused at their base, the lobes (4-)5 X 3 mm, green, persistent and accrescent in fruit; petals free, 3 X 2 mm, white, caducous; stamens 10, filaments fused into a ring at their base, free portion 1 mm long, anthers 1-2.3 mm long; ovary ellipsoid to subglobose, 1.2 mm long, 1.2 mm diam., style lacking, three sessile stigmatic branches 0.6 mm long, 0.3 mm diam. Fruit 2.5-3 mm diam., 2.5-2.8 mm tall, broadly ovoid to pyramidal, subtended by the persistent calyx, lobes spreading, (4-) 5-6.6 X 2-3.8 mm, shiny scarious.

    Type(s) of accepted name: LABAT 2411 (HT: P; IT: K, MO, TAN, TEF, WAG)

    Type(s) of syns and other voucher(s):

    Updated on: 23 Oct. 2007

    Distribution map:


     

    Related Objects Image Gallery 
  • Living plant (Fruits): Labat et al. 3036 (J.-N. Labat)
  • Image/JPEG
  • Living plant (Fruits): Schatz et al. 3971 (G.E. Schatz)
  • Image/JPEG
  • Specimen at P: Schatz 3971 (MNHN, France)
  • Image/JPEG
  • Living plant: Schatz et al. 3971 (G.E.Schatz)
  • Image/JPEG
  • Living plant (close-up): Labat et al. 3036 (J.-N. Labat)
  • Image/JPEG
  • holotype at P: Labat 2411 (MNHN, France)
  • Image/JPEG

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