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CYANASTRUM goetzeanum Engl. [family CYANASTRACEAE]

Date Updated: 19 August 2007

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, (1966) Author: Susan Carter
Names
CYANASTRUM goetzeanum Engl. [family CYANASTRACEAE], in E.J. 28: 359 (1900). Type: Tanganyika, about 120 km. E. of Iringa, Lofia R., Goetze 438 (B, holo.!)
Information
Tubers up to 2 cm. across. Cataphylls 1–2, the outer ± 2 cm. long, the inner 7 cm. long. Leaf-blade ovate-orbicular and deeply cordate, up to 8.5 cm. long measured along the midrib, 10 cm. wide, with lobes 5 cm. long; petiole up to 18 cm. long. Flowering stem up to 26 cm. high, appearing as the leaves begin to unroll. Stem-bracts 2–3, the lower sheathing, up to 4 cm. long, the uppermost usually free, up to 2.5 cm. long. Nodes of inflorescence 3–6; secondary peduncles nearly all 2-flowered but sometimes only one flower developing, with the pedicels 4–8 mm. long; floral bracts linear, 2–8 mm. long. Perianth blue (or white, fide Engler); lobes 10–12 × 3–4 mm. Anthers linear, 4–5 mm. long; pore terminal; filaments 1.5 mm. long. Style 6–8 mm. long. Capsule and seeds not seen.
Range
DISTR. T6, 7 not known elsewhere
Altitude range
380–600 m.
Distribution
TANGANYIKA Ulanga District Ifakara, Machipi, Nakatimbo, 11 Dec. 1959, Haerdi 391/0 !TANGANYIKA Iringa District about 120 km. E. of Iringa, Lofia R., Jan. 1899, Goetze 438 !
Notes
This rare species is very similar to C. johnstonii but can easily be distinguished by its shorter and, in comparison, wider leaf (which is much more like that of C. cordifolium Oliv.), the presence of small persistent bracts and its smaller fewer flowers which are usually produced two to a node.
CYANASTRUM goetzeanum Engl. [family CYANASTRACEAE]
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