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This species is accepted, and its native range is Tanzania (Ulanga).
A specimen from Kew's Herbarium

[FTEA]

Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Shrub 0.95–2.5 m. tall; young branches covered with reddish-brown bark, glabrous.
Morphology Leaves
Leaf-blades elliptic to broadly elliptic, 4.2–10.2 cm. long, 1.9–4.4 cm. wide, acuminate and usually apiculate at apex, cuneate at base, thinly papery to papery, drying yellowish or bluish green, not discolourous, midrib and lateral nerves whitish beneath, entirely glabrous; hair-lined domatia present; petiole 2–3 mm. long; stipules truncate to shortly triangular, 1–2 mm. long, apiculate.
Morphology Reproductive morphology Flowers
Flowers sweet-scented, both terminal and axillary, solitary, sessile, immediately subtended by a membranous stipule-like bracteole beset with colleters on the margin and often bearing 2 foliate appendages up to 3 mm. long, which are in turn subtended by 2 pairs of triangular glumaceous bracteoles, up to 5 mm. long, beset with colleters towards base inside.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube ovate, ± 1 mm. long, glabrous; limb ± 0.25 mm. long, almost equalling disc, divided to about halfway into shortly triangular lobes, each bearing several colleters along the margin.
Morphology Reproductive morphology Flowers Corolla
Corolla-tube 1.3–2.8 cm. long, 2–3 mm. wide at apex, sparsely pubescent outside, glabrous inside; lobes narrowly ovate to ovate, 1.5–1.8 cm. long, 6–7 mm. wide, distinctly acuminate.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers attached near the apex with only tips exserted.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style ± 5 mm. long; stigma-lobes lanceolate, 5 mm. long, very thinly membranous, positioned well below the anthers.
Morphology Reproductive morphology Fruits
Fruit bilobed, 7 mm. long, 8 mm. wide, sessile.
Morphology Reproductive morphology Seeds
Seed (imperfectly developed) oblong-ellipsoid, distinctly grooved on ventral face.
Figures
Fig. 125.
Habitat
Forest; 250 m.
Distribution
T6 not known elsewhere

Native to:

Tanzania

Coffea semsei (Bridson) A.P.Davis appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 7, 1999 Kisena, C.M. [1473], Tanzania Psilanthus semsei K000286756
Jan 7, 1999 Cunningham, A.B. [4070], Tanzania Psilanthus semsei K000286755
Luke, P.A. [4845], Tanzania Psilanthus semsei K000286758
Semsei, S.R. [3400], Tanzania Psilanthus semsei K000286760 holotype
Rodgers, W.A. [s.n.], Tanzania Psilanthus semsei K000286757
Carmichael, W. [130], Tanzania Psilanthus semsei K000286754
Luke, P.A. [4845], Tanzania Psilanthus semsei K000286759

First published in Phytotaxa 10: 43 (2010)

Accepted by

  • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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