Inflorescences
terminal on main or lateral branches; flowers in 2-6(-12)-flowered verticils; bracts persistent, small or large
Calyx
5-toothed, bilabiate, accrescent; tube campanulate to tubular, gibbous, usually conspicuously ribbed; upper tooth the largest, ovate, erect, conspicuously veined, margin slightly decurrent; 4 lower teeth horizontal, lanceolate-deltoid to subulate or lateral teeth occasionally oblong
Corolla
subequally 4-lobed; tube cylindrical, slightly wider at throat; lobes flat or nearly so with uppermost and lowest lobe sometimes longer than 2 lateral lobes
Stamens
4, included, arising above middle of corolla tube; filaments very short, hairy or 0; anthers 1-thecous, reniform
Style
included, simple or obscurely bifid
Nutlets
suborbicular or oblong, sometimes mucilaginous on wetting
x = 6 (1 report, polyploidy)
Nomenclature:
Endostemon
N.E.Br.
Brown: 295 (1910)
Launert & Schreiber: 10 (1969)
Codd: 127 (1985)
Orthosiphon
sect.
Diffusi
Briq.
Briquet: 372 (1895)
Pseudocimum
Bremek.
Bremekamp: 251 (1933)
Distribution & Notes:
Global
: Species 17, mainly in Africa
Southern Africa
: Species 3, in NW Namibia, N Botswana, Northern Province, Mpumalanga, Swaziland, KwaZulu-Natal and Eastern Cape
References:
BREMEKAMP, C.E.B. 1933. New or otherwise noteworthy plants from the Northern Transvaal.
Annals of the Transvaal Museum
15
BRIQUET, J. 1895-1897.
Labiatae
.
Die natürlichen Pflanzenfamilien
4,3a
BROWN, N.E. 1910.
Labiatae
.
Flora capensis
5
CODD, L.E. 1985.
Lamiaceae
.
Flora of southern Africa
28
LAUNERT, E. & SCHREIBER, A. 1969.
Lamiaceae
.
Prodromus einer Flora von Südwestafrika
123
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