Compilation
Clematis sigensis

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Name

Identification
Clematis sigensis Engl. [family RANUNCULACEAE ] Verified by Not on sheet., Clematis simensis Fresen. [family RANUNCULACEAE ] (stored under name); Verified by Not on sheet.,
Related name
  • Clematis sigensis
  • Clematis simensis
  • Clematis viridiflora

Flora

Entry for CLEMATIS simensis Fresen. [family RANUNCULACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora of Tropical East Africa
Resource Type
Reference Sources
Entry From
Flora of Tropical East Africa, page 1, (1952) Author: E. MILNE-REDHEAD AND W. B. TURRILL
Names
CLEMATIS simensis Fresen. [family RANUNCULACEAE], in Mus. Senckenb. 2: 267 (1837); F.T.A. 1: 6 (1868); F.C.B. 2: 191 (1951). Type: Abyssinia, Semen, Rüppell (FR, holo.!)
CLEMATIS orientalis (Fresen.) O. Ktze. var. simensis [family RANUNCULACEAE], in Verh. Bot. Ver. Brand. 26: 126 (1885)
CLEMATIS sigensis Engl. [family RANUNCULACEAE], in E.J. 45: 271 (1910). Type: Tanganyika, E. Usambaras, Warnecke 452 (B, holo.)
CLEMATIS kissenyensis Engl. [family RANUNCULACEAE], in Z.A.E. 207 (1911). Type: Belgian Congo, Kissenje, Mildbraed 1343 (B, holo., K, photo.!)
CLEMATIS altissima Hutch. [family RANUNCULACEAE], in K. B. 1923: 180 (1923). Type: Fernando Po, Mann 576 (K, holo.!)
Information
A tall climbing shrubby plant, up to 20 m. or more, often behaving as a strong liane; younger stems more or less hairy but usually becoming glabrous or nearly so, longitudinally ribbed and furrowed. Leaves unequally pinnate with five leaflets, but frequently reduced in association with the inflorescence; leaflets ovate to ovate-lanceolate, acuminate or shortly acuminate, rounded to cordate at base, entire to regularly dentate without lobes except sometimes 1–2 lobes on leaflets of uppermost leaves, nearly glabrous to densely pubescent on lower surface, a few scattered hairs on upper surface. Inflorescence many flowered; pedicels, 1–3.5 cm. long; flower buds ellipsoid. Sepals 7–16 mm. long, cream or white.
Range
DISTR. U2–4; K3–5; T2, 3, 7
Altitude range
1000–3360 m.
Distribution
KENYA Chyulu Hills, 21 Apr. 1938, Bally in C.M. 7806!TANGANYIKA Iringa District E. Mufindi, 3 Aug. 1933, Greenway 3460!UGANDA Kigezi District Rubanda, June 1946, Purseglove 2064!
Distribution (external)
Abyssinia
A.-E. Sudan
Eritrea
Congo
Angola
Southern Rhodesia
Nyasaland
British Cameroons
Fernando Po
Notes
VARIATION. There is a considerable range of variation within this species, particularly in leaf-shape, leaf-margin, indumentum and flower-size. Engler described a var. kilimandscharica from Marangu, 2700 m., Volkens 115, with ovate scarcely acuminate cordate leaflets. From Elgon and the area to the south-east of this mountain, plants with small flowers (sepals 7 mm. long) seem to be common. Material from Ruwenzori is very densely hairy. Until detailed field studies have been carried out we are averse to naming varieties within this very variable species.

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