Compilation
Hemizygia thorncroftii

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Name

Identification
Hemizygia thorncroftii (N.E.Br.) M.Ashby [family LAMIACEAE ]
Related name
  • Hemizygia thorncroftii

Flora

Entry for Hemizygia thorncroftii [family LAMIACEAE]
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Hemizygia thorncroftii [family LAMIACEAE]
Common names
Orthosiphon thorncroftii N.E. Br. in F.C. 5,1: 246 (1910).
Information
Perennial herb 0,15-0,30 m tall with few to several erect stems arising annually from a woody rootstock; stems slender, subglabrous to glandular-hispid. Leaves subsessile; blade elliptic to linear-elliptic, 15—40 X 4—10 mm, concolorous, sparingly pubescent on both surfaces, apex obtuse to acute, base cuneate to attenuate, margin with a few small teeth towards the apex. Inflorescence simple or occasionally with a pair of branches near the base, 70—100 mm long, lax; verticils 3—6-flowered; bracts lanceolate to linear-lanceolate, 15—30 x 2—5 mm, mauve-purple, persisting as an apical coma. Calyx 10—11 mm long at maturity, glandular-hispid. Corolla mauve, 14—16 mm long; tube 10—12 mm long, widening to 4 mm at the mouth; lower lip 4 mm long, often deflexed. Stamens well exserted beyond the lower lip; upper pair attached about the middle of the tube, filaments pubescent in the lower part; lower pair united for their entire length. Stigma minutely bifid.
Habitat
See note after H. transvaalensis (no. 20). In the Transvaal Museum Herbarium register (now in PRE), two Thorncroft specimens were entered on the same day; no. 3123 is H. transvaalensis and no. 3125 is H. thorncroftii. When duplicates were sent to Kew the numbers appear to have become interchanged so that, on the Kew specimens, no. 3123 is H. thorncroftii and no. 3125 is H. transvaalensis.
Use
22. Hemizygia thorncroftii (N.E. Br.) Ashby in J. Bot., Lond. 73: 349 (1935); Codd in Bothalia 12: 16 (1976); Compton, Fl. Swaziland 510 (1976). Type: Transvaal, Barberton, Thorncroft sub TRV 3123 (K, lecto.; PRE, fragment!; = Thorncroft sub TRV 3125 in PRE!). See note below on the confusion of numbers.
Range
Found in the Barberton area of the Transvaal and in western Swaziland at altitudes of 1 000 to 1 800 m; in mountain grassland. Map 117.

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