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This genus is accepted, and its native range is NE. & E. Tropical Africa, SW. Arabian Peninsula.
A specimen from Kew's Herbarium

[FTEA]

Convolvulaceae, B. Verdcourt (East African Herbarium). Flora of Tropical East Africa. 1963

Morphology General Habit
Sericeous shrubs with small or medium-sized mostly fascicled leaves
Morphology Reproductive morphology Flowers
Flowers dioecious, pentamerous, rarely and abnormally tetramerous
Morphology Reproductive morphology Flowers Calyx
Sepals a little unequal in the ♂ flowers, subequal in ♀ flowers, all equally accrescent in fruit
Morphology Reproductive morphology Flowers Corolla
Corolla funnel-shaped, longer than the sepals in ♂ flowers and about the same length in the ♀ flowers; limb deeply 5-fid
Morphology Reproductive morphology Flowers Gynoecium Pistil
Styles 2, connate at the extreme base; stigmas U-shaped or irregular, lobulate
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2-locular, each loculus 2-ovuled
Morphology Reproductive morphology Fruits
Capsule 2-seeded.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Erect or climbing dioecious shrubs
Morphology Leaves
Leaves alternate or clustered, covered with medifixed hairs on both sides
Morphology Reproductive morphology Flowers
Male flowers in sessile or pedunculate inflorescences; sepals 5, subequal; corolla tubular, much longer than the sepals, 5-lobed, pubescent on the outside; stamens 5, with filaments ± equal in length; rudimentary ovary with 2 styles, longer than the stamens, ending with U-shaped stigma-branches Female flowers in pedunculate inflorescences or clustered; sepals subequal, all enlarging in fruit, or sometimes unequal with 3 outer ones enlarging, inner 2 remaining smaller; corolla only slightly longer than sepals, pubescent on the outside; ovary 2-celled with 2 ovules in each cell, glabrous to pubescent at apex; styles 2, stigmas branched; staminodes 5, ± equal in length, with filaments widened at the base, without anthers
Morphology Reproductive morphology Fruits
Capsule, 4-valved, 1–2-seeded, enclosed by the enlarged sepals
Morphology Reproductive morphology Seeds
Seeds ovoid to trigonous, rugose.
Distribution
Genus of three species restricted to northeastern and eastern tropical Africa and Arabia.

Native to:

Eritrea, Ethiopia, Kenya, Somalia, Yemen

Cladostigma Radlk. appears in other Kew resources:

First published in Bremen Abh. 8: 412 (1883)

Accepted by

  • Baker, J.G. & A.B. Rendle in Thiselton-Dyer, W.T. et al. (eds.) (1905). Convolvulaceae Flora of Tropical Africa 4(2): 62-206. Secretary of State for the Colonies.
  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Hallier, H. (1899). Convolvulaceae Bulletin de l'Herbier Boissier 7: 41-64. l'Herbier Boissier.
  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Sebsebe Demissew (1996). The genus Cladostigma (Convolvulaceae) Kew Bulletin 51: 405-411.
  • Thulin, M. et al. in Thulin, M. (ed.) (2006). Convolvulaceae Flora of Somalia 3: 221-258. The Royal Botanic Gardens, Kew.
  • Verdcourt, B. (1963). Convolvulaceae Flora of Tropical East Africa: 1-161.

Literature

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by Sebsebe Demissew [updated by M. Thulin 2008]
  • Sebsebe Demissew in Kew Bull. 51: 405–411 (1996).

Flora of Tropical East Africa

  • in Abhandl. Naturw. Ver. Bremen 8 : 412 (1883)

Flora of Somalia
Flora of Somalia
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 2021. 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 2021. 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