Thorncroftia lotteri T.J.Edwards & Mcmurtry

Species

Angiosperms > Lamiales > Lamiaceae > Thorncroftia

Characteristics

Semi-succulent erect herb or shrub, 0.3-1.0 m tall, with several main stems. Stems grey below, purple to pale green above, 7-25 mm in diameter, sparingly branched, densely tomentose, trichomes recurved, simple and sessile, capitate. Leaves succulent, lamina broadly trullate to broadly elliptic, 15-40 x 10-30 mm, densely tomentose above, very densely tomentose below, trichomes simple, recurved, glands white to translucent, venation prominent below; apex round to notched; margin crenate in the upper two thirds, rubrotomentose, teeth in 12-14 pairs, veins terminating in regular discoid, glabrous indentations at the apex of each tooth; base round to cordate; petiole often purple, 0-8 mm long. Inflorescence terminal, paniculate, dense; rhachis green to purple, glandular-tomentose; bracts persistent, imbricate, narrowly to broadly elliptic, 6-12 x 3-9 mm, entire, weakly conduplicate, apiculate; flowers axillary, solitary; pedicel purple, 1.5-3.0 mm long. Calyx green, becoming purple, recurved filiform trichomes outside, strigose within, 5-7 mm long; tube 3.5-4.0 mm long; upper lobe ovate, 2.5-3.5 x 2.0-3.0 mm; upper lateral lobes lanceolate-deltoid 2.5 x 1.0 mm; lower lateral lobes lanceolate-deltoid, 1.5-2.0 x 0.75 mm. Corolla tubular, four-lobed, lilac-pink; tube 19-24 x 1.5-2.0 mm, outside filiform trichomes recurved, glands clear, sessile, inside distal third glabrous, proximal inner tube villous; posticous lobe erect, obovate, 6-7 x 7-8 mm, purple streaked; lateral lobes deflexed, linear-lanceolate, acuminate, 6-7 x 2 mm, purple spotted; anticous lobe cymbiform, 6-9 mm long, porrect, becoming reflexed, pale lilac to white. Stamens 4, filaments 4-6 mm long, adnate to the corolla throat. Ovary four-lobed, glabrous; style white, filiform, exserted by 4-8 mm; stigma purple, shortly bifid. Nutlets glossy, pale to dark brown, ovoid, 2.0-2.5 x 1.5-2.0 mm.
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Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
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Mature height (meter) 0.3 - 1.0
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Cultivation

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Distribution

Thorncroftia lotteri world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77073014-1
WFO ID wfo-0000806678
COL ID 56KV9
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Thorncroftia lotteri