Flowers
in pedunculate, umbel-like cymes, lateral at nodes
Sepals
with scales within base
Corolla
deeply 5-lobed
Corona
arising from base of staminal column, of 5-lobes; lobes in side view obconic, trumpet- or slipper-shaped, with infolded margins forming a channel or narrow, funnel-shaped cavity within, with truncate or rounded upper margin and with an inward-directed horn
Anthers
2-locular, with inflexed, ovate, membranous appendage
Pollinia
terete, linear, pendulous; caudicles shorter than pollinia
Follicles
lanceolate, ± beaked and echinate
Seeds
brown, ovate, planoconvex, narrowly winged, with scattered, raised markings
x = 9 (1 report)
Nomenclature:
Pentarrhinum
E.Mey.
Meyer: 199 (1838)
Brown: 741 (1908)
Liede & Nicholas: 475 (1992)
Distribution & Notes:
Global
: Species 3, Africa
Southern Africa
: Species 2, widespread except in Lesotho and Western Cape
LIEDE, S. & NICHOLAS, A. 1992. A revision of the genus
Pentarrhinum
E. Meyer (
Asclepiadaceae
).
Kew Bulletin
47
MEYER, E.H.F. 1838.
Commentariorum de plantis Africae australioris
. Voss, Leipzig
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