e-Key <span id="jodit_selection_marker_1705918532360_8619793035228951" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Alloca<span id="jodit_selection_marker_1705918532360_35493807726863746" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ssine
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Celastraceae - Allocassine N.Robson

Description:

  • Slender scrambling shrubs or lianas, unarmed, glabrous; bark greyish or light brown, periderm persistent with no sequential periderm formation observed, phellem, 1-1.5 mm thick, with conspicuous orange pigment in slash, surface ± smooth
  • Branchlets terete or flattened, greyish brown
  • Leaves usually opposite or alternate on young shoots, occasionally bracteose on climbing shoots; lamina elliptic to broadly elliptic to oblong, very large, bluish green, glossy on both surfaces, base rounded to cuneate, apex rounded to retuse, rarely acute, margin entire or remotely glandular-crenulate, rigidly coriaceous; venation conspicuous on both surfaces, fine reticulation sometimes more conspicuous above, indistinctly brochidodromus; petiolate; stipules minute, ± triangular, brownish black, caducous
  • Inflorescences pedunculate, compact dichasial with flowers sessile, axillary, 1-10 per inflorescence; bracts minute, bracteoles occasionally present
  • Flowers bisexual
  • Sepals 5, greenish with reddish cilia, ovate, thick, coriaceous, margin ciliolate
  • Petals 5, yellow-green, narrowly obovate, erect, sessile, apex rounded, margin entire
  • Disc fleshy, entire
  • Stamens 5, erect; filaments relatively long, flattened, arising from and united at base with margin of disc; anthers basifixed, introrse
  • Ovary ± immersed in and adnate to disc, 2-locular, with 2 erect collateral ovules per locule; stigma inconspicuously lobed
  • Fruit baccate, red, ellipsoid, up to 32 X 20 mm, mesocarp fleshy
  • Seeds black, narrowly ellipsoid; fleshy endosperm present; embryo erect, with cotyledons fleshy, narrowly elliptic

Nomenclature:

  • Allocassine N.Robson
    • Robson: 30 (1965)
    • Codd: 124 (1966)
    • Robson: 379 (1966)
    • Archer & Van Wyk: 189 (1998)

Distribution & Notes:

  • Global: Monotypic: Allocassine laurifolia (Harv.) N.Robson, occurring in dry forest and forested ravines in the eastern parts of Zimbabwe, southern parts of Mozambique and southern Africa
  • Southern Africa: Swaziland, KwaZulu-Natal and Eastern Cape

References:

  • ARCHER, R.H. & VAN WYK, A.E. 1998. A taxonomic revision of Allocassine N. Robson, a monotypic genus in the southern African Celastraceae. South African Journal of Botany 64
  • CODD, L.E. 1966. Celastraceae. The Cassine complex. Bothalia 9
  • ROBSON, N.K.B. 1965. Taxonomic and nomenclatural notes on Celastraceae. Boletim da Sociedade Broteriana, ser. 2, 39
  • ROBSON, N.K.B. 1966. Celastraceae. Flora zambesiaca 2