Compilation
Stictocardia laxiflora

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Name

Identification
Stictocardia laxiflora (Baker) Hallier f. [family CONVOLVULACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Ipomoea woodii
  • Stictocardia beraviensis
  • Ipomoea lindleyi
  • Stictocardia woodii
  • Argyreia laxiflora
  • Stictocardia laxiflora
  • Ipomoea buchanani
  • Ipomoea pringsheimiana
  • Stictocardia pringsheimiana
  • Rivea pringsheimiana

Flora

Entry for Stictocardia laxiflora [family CONVOLVULACEAE]
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
Stictocardia laxiflora [family CONVOLVULACEAE]
Common names
Argyreia ? laxiflora Baker: 67 (1894). S. beraviensis (Vatke) Hallier f. subsp. laxiflora (Baker) Verde: 189 (1958b). Ipomoea woodii N.E.Br.: 101 (1894); Baker & C.H.Wright: 60 (1904); J.M.Wood: t. 557 (1912). S. woodii (N.E.Br.) Hallier f.: 548 (1898a); A.Meeuse: 773 (1957a); Verde.: 189 (1958b). 5. laxiflora (Baker) Hallier f. var. woodii (N.E.Br.) Verde.: 173 (1963b); Verde.: 71 (1963a); Gone.: 51 (1987); Gone.: 53 (1992). Type: KwaZulu-Natal, Durban, Wood 4146; 4864 (K, syn., NH!).
Information
Perennial with a large tuberous rootstock. Stems stout, older portions decumbent and up to 7 m long or longer, younger portions creeping or climbing, finely pubescent, glabrescent. Leaves orbicular-cordate with broad, shallow basal sinus, up to 250 mm long and wide, thin­ly hairy to quite glabrous, apex obtuse to acumi­nate, minutely emarginate and mucronate; peti­ole 50-150 mm long, stout, channelled above. Inflorescence cymosely 3-8-flowered or in upper portions of stems l-3-flowered; common peduncle 20-60 mm long, stout; pedicels up to ± 30 mm long; bracteoles early deciduous, minute. Calyx somewhat inflated, glabrous; sepals subequal, strongly imbricate, concave, coriaceous, ovate-oblong, obtuse or rounded at apex, 8-10 mm long, outer ones slightly larger than inner ones. Corolla funnel-shaped, with rose-pink lobes with yellowish tube, 65-80 mm long, limb as wide, spreading, shallowly 5-lobed, lobes rounded to emarginate; mid­petaline areas very distinct, quite glabrous or bearded at apex. Stamens somewhat unequal, 20-25 mm long, included, shorter than style. Style 30 mm long, stigma rough. Capsule unknown. Seed unknown. Flowering time December to July. Figure 20.
Habitat
Distinguished by its woody climbing or creeping habit, leaves with minute black dots beneath and pinkish yellow flowers with quite prominent midpetaline areas. In the past, features like the length of the peduncles and the pedicels were used to distinguish S. laxiflora var. woodii. However, the description by Meeuse (1957a) was based on a whole series of herbarium speci­mens, all from a single plant grown in the Durban Botanical Garden. The range of variation is so broad that such distinctions cannot be made.
Use
Stictocardia laxiflora (Baker) Hallierf. in Bulletin de l'Herbier Boissier 6: 548 (1898a); Verde: 5 (1961b); Verde: 71 (1963a); Gone.: 49, t. 15 (1987); Gone.: 53, t. 14 (1992); A.Meeuse & W.G.Welman: 49 (1996). Type: Malawi, Shire Highlands, Buchanan 388 (K, holo.).
Range
Reported from the eastern part of tropical and subtropical Africa, namely Tanzania, Malawi, Zimbabwe and Mozambique, reaching the Ngoye Forest in KwaZulu-Natal. Grows in evergreen bush in rain and riverine forests, mostly in lowlands. Van Wyk (1996) lists this species as particularly prevalent in the Maputaland Centre of Endemism, which com­prises the northernmost part of the Tongaland-Pondoland Regional Mosaic. Map 75.

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