Flora Zambesiaca

Taxon Detail

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FZ volume:7 part:4 (1990) Boraginaceae by E. S. Martins (Trichodesma by R. K. Brummit)

(Search other Kew databases for: Heliotropium zeylanicum)

Heliotropium zeylanicum (Burm.f.) Lam.

Encycl. Méth. Bot. 3: 94 (1789). —Hiern, Cat. Afr. Pl. Welw.1: 720 (1898). —Schinz & Junod in Mém. Herb. Boiss. 10: 60 (1900). —Baker & Wright in F.T.A.4, 2: 31 (1905). —Weimarck in Bot. Notis.1940: 62 (1940). TAB. 26 fig. 4. Type from India.

Synonyms:

Heliotropium curassavicum var. zeylanicum Burm. f.

Fl. Ind.: 41, t. 16 fig. 2 (1768). Type as above.

Heliotropium subulatum (Hochst. ex A.DC.) Vatke

in Linnaea 43: 316 (1882). —Friedrich-Holzhammer in Merxm., Prodr. Fl. SW. Afr., 119: 9 (1967). —Taton in Fl. Congo, Rwanda et Burundi, Boraginaceae: 30, t. 4 (1971). —J.H. Ross, Fl. Natal: 297 (1972). —Munday & Forbes in Journ. S. Afr. Bot. 45: 9 (1979). —Hall-Martin & Drumm. in Kirkia 12: 177 (1980). Syntypes as for T. subulata.

Tournefortia stenoraca Klotzsch

in Peters, Reise Mossamb. Bot.: 250 (1861). Type: Mozambique, Rios de Sena, Peters s.n. (B†, holotype).

Tournefortia subulata Hochst. ex. A. DC.

in DC., Prodr. 9: 528 (1845). Syntypes from Senegal, Sudan and Ethiopia.

Distribution:

Botswana

N: Dikgakana, Mogohilo R. area, fl. & fr. 16.v.1976, Smith 1740 (K; SRGH).

Malawi

C: near Kasungu Hill, fl. & fr. 14.i.1959, Robson & Jackson 1147 (BM; K; LISC; SRGH).

N: S. Rukuru R. Gorge, fl. & fr. 8.vii.1974, Pawek 8810 (K; SRGH).

S: Mangochi, E. of Lake Malombe, fl. & fr. 16.ix.1963, Salubeni 107 (SRGH).

Mozambique

GI: Caniçado, Guijá, fl. & fr. 3. vii.1947, Pedro & Ped?og?o 1241 (COI; K; LMA; SRGH).

M: Inhaca Isl., fl. & fr. 19.vii.1958, Mogg 28100 (BM; K; LMA; LMU; SRGH).

MS: Búzi, Chibabava, fl. & fr. 30.xi.1906, Swynnerton 1941 (BM; K).

T: Cahobra (Cahora) Bassa, serra de Songa, fl. 30.xii.1965, Torre & Correia 13926 (C; J; LISC; LMU; MO).

Zambia

B: Sesheke, fl. & fr. i.1925, Borle in N.H. 58179 (PRE).

C: Katondwe, fl. & fr. 4.xii.1969, Mutimushi 3869 (SRGH).

E: Chipata, Kakumbi, fl. & fr. 21.i.1970, Astle 5751 (K; SRGH).

N: Mbala, Kasikalawi, W. of Mpulungu, fl. & fr. 10.iv.1961, Phipps & Vesey-FitzGerald 3040 (K; LISC; SRGH).

S: Mumbwa-Namwala Rd., 1.6 km. E. of Lukomezi R., fl. & fr. 15.viii.1963, van Rensburg 2456 (K; SRGH).

Zimbabwe

E: Chimanimani, near Chitsa’s Village, fl. & fr. 11.vi.1950, Chase 2405 (BM; SRGH).

N: Guruve, near Mwanzamtanda R., fl. & fr. 28.i.1966, Müller 238 (K; LISC; SRGH).

S: Mwenezi, near Palfrey’s Store, fl. & fr. 29.iv.1961, Drummond & Rutherford-Smith 7601 (K; LISC).

W: Victoria Falls, fl. & fr. vii.1920, Sim 19155 (PRE).

Range:

Arabia;  India;  Pakistan; 

Widespread throughout tropical Africa

Habitat:

In dry woodlands and savannas, open grounds, on sandy riverbanks and on edges of rivers and lakes up to 2000 m.

Description:

Erect or procumbent perennial herb up to 60(90) cm. high, usually with a thick rootstock; stems somewhat woody to the base, hispid. Leaves sessile or subsessile, 20–65(120) x 2–14(20) mm., linear to linear-lanceolate, rarely lanceolate, pubescent-hispid above, glabrous or subglabrous below, however hispid on the nerves, acute at apex, cuneate at base, margins entire; often small orange sessile or pedicled glands are present mainly on the lower surface. Cymes lax, ebracteate, single or more often in pairs, up to 25(30) cm. long when completely expanded. Flowers sessile. Calyx 1.5–2.0 (2.5) mm. long, lobes narrowly ovate, acute, 3-nerved, 3-ribbed outside over the nerves, ribs usually undulate, sometimes only the middle one, rarely not perceptibly undulate, ciliate on the margins and on the midrib, sometimes glandulous outside, pubescent to the apex inside, stellate-spreading after the nutlets are shed. Corolla yellow or greenish; tube 3.5–4.5(5.5) mm. long, widened to the upper half, pubescent or strigose outside by strips corresponding the lobes; corolla lobes 1.5–3.0 mm. long, caudate-acuminate, spreading, with the tip bent back inwards, at least in bud. Stamens inserted between 1/2 and 2/3 from the base on the corolla tube; anthers 1.0–1.5 mm. long, lanceolate to oblong, shortly bifid at apex, subsessile. Ovary ovoid, glabrous. Style 1.0–2.0 mm. long, glabrous; stigmatic ring small; sterile appendix 0.8–1.3 mm. long, narrowly cone-shaped, brush-like. Fruits 1.7–2.3 x 2.0–2.5 mm., subglobulous, glabrous, rugose, usually bright brown; nutlets free, with the inner surfaces ± convex, irregular.

Flora Zambesiaca