Shrubs or shrublets, erect or occasionally procumbent to ascending; young branches often 4-angled
Leaves
sessile or sometimes shortly petiolate, entire, opposite, linear to ovate or oblanceolate, often reduced in size towards tips of branches, glabrous
Flowers
usually in spike-like racemes; bracts foliaceous; bracteoles variable
Perianth
united, at least in basal half, into a campanulate or cylindric tube, with 4(5) triangular lobes, simply valvate, often with thickened apex and keeled inner face, persistent and enclosing capsule, accrescent, white to pale yellow or sometimes pink, often becoming purplish with age
Stamens
: filaments fused for greater part to inner wall of perianth tube, with very short free portion, extending into an expanded cordate-ovate, fleshy connective, on inner basal portion of which are produced 2 thecae with introrse dehiscence
Ovary
4-locular, with 2 ascending ovules from near base of inner surface of each locule; style columnar, with 4-8 longitudinal ridges and 4 rather flat, stigmatic lobes at apex
Capsule
hard, quadrangular-ovoidal with loculicidal dehiscence
Nomenclature:
Stylapterus
A.Juss.
Jussieu: 15 (1846)
Dahlgren: 3 (1967)
Distribution & Notes:
Southern Africa
: Species 8, SW Western Cape
References:
DAHLGREN, R. 1967. Studies on
Penaeaceae
I. Systematics and gross morphology of the genus
Stylapterus
A.Juss.
Opera Botanica
15
JUSSIEU, A.H.L. DE. 1846. Sur la famille des Pénaeacées.
Annales des sciences naturelles Botanique
3,6
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