Cyanastrum Oliv.

This genus is accepted, and its native range is Tropical Africa.

[FZ]

Tecophilaeaceae, E. J. Cowley & R. K. Brummit. Flora Zambesiaca 12:3. 2001

Morphology General Habit
Perennial herbs, acaulescent.
Vegetative Multiplication Corms
Corms several superposed one above the other, ± depressed, with a solitary leaf (rarely more) and a scape produced independently on the upper surface, the petiole and scape sheathed at the base by different cataphylls; cataphylls surrounding the petiole 1-several, shortest outside; cataphyll surrounding the scape usually 1 at the base.
Morphology Leaves
Leaf basal, petiolate; lamina cordate at the base, usually with conspicuous basal lobes, or at least abruptly constricted at the base; petiole ± distinct and equalling or exceeding the midrib in length.
Morphology Reproductive morphology Inflorescences
Inflorescencescapose with flowers racemosely arranged; bracts absent, or present and subulate to foliaceous; pedicel with or without a bracteole.
Morphology Reproductive morphology Flowers Tepal
Tepals blue, sometimes with a lilac tinge, fused into a short tube at the base.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther thecae oblong to linear, dehiscing by a terminal pore.
Morphology Reproductive morphology Flowers Pollen
Pollen grains with an imperforate rugulose to granular tectum.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 3-locular, semi-inferior; ovules 2 per carpel.
Morphology Reproductive morphology Fruits
Capsule with only one or occasionally 2 carpels developing a seed; fertile carpels globose, dehiscing by a complete longitudinal split.
Morphology Reproductive morphology Seeds
Seeds ovoid; testa with a pitted chalazal end and a smooth micropylar end, without microprickles in pits, without endosperm, with a large chalazosperm occupying about half the seed.

[FTEA]

Tecophilaeaceae, Susan Carter. Flora of Tropical East Africa. 1966

Morphology General Habit
Tubers depressed-globose, superposed to form a vertical series; roots thick and fibrous
Morphology Leaves
Cataphylls 1–3, scarious, sheathing Leaves basal, petiolate, rolled in bud; leaf-blade ovate and cuneate, to ovate-orbicular and cordate
Morphology Reproductive morphology Inflorescences
Flowering stem sometimes appearing before the leaves, naked or with 1–2 distant scarious bracts, the lower usually sheathing Inflorescence pseudo-racemose; bracts large and ovate to linear, or minute and sometimes absent; bracteoles sometimes present and then usually subtending a flower
Morphology Reproductive morphology Flowers Perianth
Perianth-lobes in two series but joined at the base to form a very short tube
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens all perfect; filaments filiform; anthers linear or oblong, with an apical terminal or introrse pore
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary semi-inferior, deeply trilobed; ovules 2 in each loculus; style longer than the stamens
Morphology Reproductive morphology Seeds
Mature seeds 1–3, forming a 1–3-lobed capsule; seeds rather large, oval, smooth, with a large spongy cap.

Native to:

Cameroon, Congo, Equatorial Guinea, Gabon, Mozambique, Nigeria, Tanzania, Zambia, Zaïre

Cyanastrum Oliv. appears in other Kew resources:

First published in Hooker's Icon. Pl. 20: t. 1965 (1891)

Accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

Literature

Flora of West Tropical Africa

  • S. Carter in Kew Bull. 16: 190 (1962).
  • in Hook., Ic. Pl. 20: t. 1965 (1891)

Flora Zambesiaca

  • Brummitt in Kew Bull. 53: 775 (1998).
  • Carter in Kew Bull. 16: 190 (1962).
  • Clausen in Gentes Herbarum 4: 295 (1940).
  • in Hooker’s Icon. Pl. 20: t. 1965 (1891).

Flora of Tropical East Africa

  • Carter in K.B. 16: 190 (1962)
  • R. E. Fries in Wiss. Erg. Schwed. Rhod.-Kongo-Exped. 1: 225 (1916)
  • R. T. Clausen in Bailey, Gentes Herb. 4: 293(1940)
  • in Hook., Ic. Pl. 20, t. 1965 (1891)

  • 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

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. 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 2022. 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