Senyumia Kiew, A. Weber & B.L. Burtt.
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publication ID |
https://dx.doi.org/10.3897/phytokeys.117.31560 |
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persistent identifier |
https://treatment.plazi.org/id/EB45DC38-6735-890D-4419-F65F138C7157 |
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treatment provided by |
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scientific name |
Senyumia Kiew, A. Weber & B.L. Burtt. |
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Senyumia Kiew, A. Weber & B.L. Burtt.
Senyumia Kiew, A. Weber & B.L. Burtt. Beitr. Biol. Pflanzen 70 (1998 [1997]) 400; Weber, Fam. & Gen. Vasc. Pl. 7 (2004) 148.
Type species.
Senyumia minutiflora (Ridl.) Kiew, A. Weber & B.L. Burtt.
Revised generic description.
Short herb. Stem wiry, woody, to 20 cm long, 4-5 mm diameter, with a terminal rosette of many leaves. Indumentum pilose, of dense, long uniseriate hairs, intermingled with glandular hairs that make the lamina sticky to touch. Leaves opposite; petiole long, slender; lamina very thin, membranous, soft, pale green, broadly lanceolate to elliptic, 4-15 × 4-7.5 cm, margin toothed, teeth blunt, base not cordate, often unequal; veins 6-8 pairs. Inflorescences axillary, pair-flowered dichasial cymes, 9-17 cm long; pedicels very fine, 9-11 mm long. Flowers small; calyx divided to base into five narrowly lanceolate lobes, 1.5-2 mm long,; corolla white, sometimes tinged pink, tube very short, straight-sided, slightly dilating, 1.2-3 mm long, limb bilabiate, lobes in upper position densely studded with short glandular hairs internally, in non- or partially resupinate flowers, two lobes of the upper lip are strongly reflexed, in resupinate flowers, the lower three lobes held in the upper position are strongly reflexed; stamens 2, anthers large, 1.5-2 mm long, ellipsoid, cohering, yellow, exserted; nectary absent; ovary small, 2-3 mm long, ovoid; style 2-5 mm long, protruding; stigma punctiform. Capsules orthocarpic, 4-10 mm long, glabrous, strongly twisted, opening on the dorsal and ventral sides, valves becoming spiral after dehiscence. Seeds numerous, minute, 104-117 × 29-31 µm or 350 × 210 µm.
Distribution.
Two species, both endemic in Peninsular Malaysia.
Ecology.
Lithophytic, growing in cracks and crevices in light shade either on quartz derived from granite or on limestone rocks.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.