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Subfamily

VII. Subfam. Nepetoideae (Dumort.) Luerss. (1882).

VII. 3. Tribe Ocimeae Dumort. (1829).

VII. 3. E. Subtribe Plectranthinae Endlicher (1838).

Description

Semi-succulent subshrubs or herbs, aromatic; leaves simple; inflorescence thyrsoid, condensed or lax, with cymes sessile, 1-flowered; bracts persistent, sometimes caducous, leaf-like or smaller; calyx funnel-shaped or shortly tubular, straight, sometimes slightly curved, 2-lipped or weakly so, 5-lobed (1/4), lobes unequal, posterior lip lanceolate to elliptic, decurrent or not, lateral lobes lanceolate sometimes with a slight shoulder, anterior lobes lanceolate, slightly fused at base, throat open, glabrous; corolla strongly 2-lipped, 5- or 4-lobed (4-3/1), white to lilac, posterior lip with median lobes erect, emarginate or two-lobed, lateral lobes linear, spreading, deflexed, close to anterior lip, anterior lip deflexed, cucullate; tube narrow, cylindrical, parallel-sided or sometimes saccate at base and parallel-sided distally, straight; stamens 4, free, exserted; stigma-lobes subulate or linear; disc 4-lobed with anterior lobe larger, sometimes exceeding ovaries; nutlets, ovoid, glabrous, mucilaginous or not. 2n = 28.  Four species in rock outcrops, southern Africa.

Distribution

Native to:

27 Southern Africa

Publication

Thorncroftia N.E.Br., Kew. Bull. Misc. Inf. 1912: 281 (1912); Codd, Bothalia 7: 429 (1961), rev.

Species found in RBG Kew living collections

1993-3115 Thorncroftia media Codd N HAAD 3966 F JOD T3 FLOOR
1989-1323 Thorncroftia media Codd N HAAD 3966  TRO_N
  

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Image resource

Royal Botanic Gardens, Kew