Genus:
Olinia Thunb.

Olinia ventosa (L.) Cufod.

This species is accepted, and its native range is SW. & S. Cape Prov.

[KBu]

Sebola, R.J. & Balkwill, K. 2013. A monographic study of the Oliniaceae. Kew Bulletin 68: 419. https://doi.org/10.1007/s12225-013-9465-x

Conservation
This species is distributed along the coastal regions of the southwestern Cape and Eastern Cape, South Africa. The high abundance of more than 10 individuals in a population (Sim 1907), occurrence in most conservancies and no potential for habitat destruction in the localities where it occurs suggest this species is not under threat, and thus is assessed as being of Least Concern (LC).
Distribution
Known only from the Western Cape and Eastern Cape in South Africa. The region has a mediteranean type climate, and receives rain mainly in winter some areas in the east receive rainfall all year round.
Ecology
Occurs in mountain forests and along ravines alt. 960 – 1500 m.
Morphology General Bark
Bark smooth and greyish branchlets pink
Morphology General Habit
Large tree, up to 5 m high
Morphology General Scales
Scales cream-white, hooded, enclosing stamens, alternating with petal lobes, 0.5 – 1 mm long, pubescent on both surfaces
Morphology Leaves
Leaves obovate to oblanceolate, petiolate, discolorous, glabrous on both surfaces, (36 –) 44 – 69 (− 80) × (17 –) 20 – 29 (− 35) mm base cuneate to attenuate apex acuminate to obtuse in juvenile leaves, slightly emarginate in mature leaves margin entire, undulate, slightly revolute venation brochidodromous Primary or midvein slightly sunken, protruding below surface Secondary veins branching at 30° – 40° from midrib, looping once before margins tertiary veins inconspicuous above
Morphology Leaves Petiole
Petiole pink, pubescent, (3 –) 3.6 – 6.5 (− 7.6) mm long
Morphology Leaves Stipules
Stipules as for the genus
Morphology Reproductive morphology Flowers
Flower 5-merous
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens as for the genus
Morphology Reproductive morphology Flowers Calyx
Sepals as for the genus
Morphology Reproductive morphology Flowers Corolla
Petals cream-white, elliptic, (1.5 –) 2 – 3 (− 3.3) × 1 – 1.5 (− 1.5) mm, inserted at throat of hypanthium, pubescent on lower surface at point of attachment, base sessile apex rounded margin entire
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 5-locular style glabrous, ± 1 mm long stigma capitate
Morphology Reproductive morphology Flowers Hypanthium
Hypanthium pink, glabrous, (3 –) 4.6 – 6.8 (− 7.8) mm long
Morphology Reproductive morphology Flowers Pedicel
Pedicel glabrous, 0.5 – 1 mm long
Morphology Reproductive morphology Fruits
Fruit pink to red, globose to ovoid, 5 – 7 mm in diam- hypanthium scar 4 – 5 mm in diam.
Morphology Reproductive morphology Inflorescences
Inflorescences axillary, dichasial cymes, loose axes slightly pubescent, (5.5 –) 6.6 – 9 (− 11) mm long peduncle (3 –) 3.1 – 4.2 (− 5) mm long
Morphology Reproductive morphology Inflorescences Bracts
Bracts caducous, cream-white, obovate, (1.5 –) 3.5 – 5 (− 7) × 1.5 – 3.5 mm, pubescent on both surfaces apex acuminate base decurrent (for those attached to inflorescence units)
Note
Both Olinia ventosa and O. capensis are large trees and they are sympatric. They can be distinguished largely on the basis of floral features. The flowers in O. ventosa are larger with petal lobes up to 3.3 mm long and 1.5 mm wide (vs petal lobes that are less that 2 mm long and only up to 1 mm wide in O. capensis). This species is related to Olinia capensis but differs in size of the flower (hypanthium that is longer than 3.5 mm in O. ventosa vs 2 mm or shorter in O. capensis) and the structure of the inflorescence (compact in O. capensis vs sparse and open in O. ventosa).
Vernacular
Hard pear, Hardepeer (Afrikaans).

Native to:

Cape Provinces

Olinia ventosa (L.) Cufod. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 2013 Zeyher [2464 var c.], South Africa K000904733 No
Jan 1, 1996 Burchell, W.J. [8397], South Africa K000812965 No
Jan 1, 1996 Burchell, W.J. [5475], South Africa K000812973 No
Jan 1, 1996 Burchell, W.J. [5469], South Africa K000812967 No
Jan 1, 1996 Wright, C. [s.n.], South Africa K000812962 No
Jan 1, 1996 Burchell [5469], South Africa K000812964 No
s.coll. [2464], South Africa K000812966 No
Zeyher [883], South Africa K000812974 No
Drege, J.F. [3468], South Africa K000812963 No

First published in Oesterr. Bot. Z. 107: 106 (1960)

Accepted by

  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist. Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Sebola, R.J. & Balkwill, K. (2013). A monographic study of the Oliniaceae. Kew Bulletin 68: 419-456. Royal Botanic Gardens, Kew.

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Kew Backbone Distributions

  • Sebola, R.J. & Balkwill, K. (2013). A monographic study of the Oliniaceae. Kew Bulletin 68: 419-456. Royal Botanic Gardens, Kew.

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  • Kew Backbone Distributions

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