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Compilation
Euphorbia tuberculata

13 Images see all

Filed as Euphorbia tuberculata Jacq. [family EUPHORBIACEAE]
Syntype of Euphorbia macowani N.E.Br. [family EUPHORBIACEAE]
Type of Euphorbia macowani N.E.Br. [family EUPHORBIACEAE]
Euphorbia macowani N.E.Br. [family EUPHORBIACEAE]
Euphorbia macowani N.E.Br. [family EUPHORBIACEAE]
Type of Euphorbia schumanniana Schltr. [family EUPHORBIACEAE]
Syntype of Euphorbia macowani N.E.Br. [family EUPHORBIACEAE]
Euphorbia tuberculata Jacq.
Euphorbia tuberculata Jacq.
Filed as Euphorbia caput-medusae L. [family EUPHORBIACEAE]
Isosyntype of Euphorbia tuberculata Jacq. var. macowani (N.E. Br.) A.C. White [family EUPHORBIACEAE]
Filed as Euphorbia caput-medusae L. [family EUPHORBIACEAE]
Type of Euphorbia bolusii N.E.Br. [family EUPHORBIACEAE]
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Name

Identification
Euphorbia tuberculata Jacq. [family EUPHORBIACEAE ]
Related name
  • Euphorbia tuberculata

Flora

Entry for EUPHORBIA tuberculata Jacq. [family EUPHORBIACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Capensis
Resource Type
Reference Sources
Entry From
Flora Capensis, Vol 5, Part 2, page 216, (1925) Author: (By N. E. BROWN, J. HUTCHINSON and D. PRAIN.)
Names
EUPHORBIA tuberculata Jacq. [family EUPHORBIACEAE], Hort. Schoenbr. ii. 43, t. 208;—Willd. Sp. Pl. ii. 887; Poir. Encycl. Suppl. ii. 609; Spreng. Syst. Veg. iii. 787; Boiss. in DC. Prodr. xv. ii. 86; Berger, Sukk. Euphorb. 109; Marloth in Trans. Roy. Soc. S. Afr. iii. 123, t. 8, fig. 2.
Dactylanthes tuberculata Haw. [family EUPHORBIACEAE], Syn. Pl. Succ. 133.
Medusea tuberculata Klotzsch & Garcke [family EUPHORBIACEAE], in Abhandl. Akad. Berlin, 1859, 61.
Information
succulent, 1 1/2–2 ft. high, with numerous branches from a thick rootstock or main stem wholly or partly buried in the ground, spineless, but the branches beset with the hardened persistent remains of the peduncles, not true spines, only dried branches seen, 3–18 in. long, 1/2– 3/4 in. thick, evidently stouter when alive, unbranched, cylindric or slightly thickened upwards, erect, covered with rhomboid conical tubercles 3–4 lin. long, 1–3 lin. broad and 1–3 1/2 lin. prominent, glabrous; leaves 1/2–2 in. long, 3/4–1 1/3 lin. broad, linear, channelled down the face from incurved margins, acute, soon deciduous, glabrous, somewhat fleshy; peduncles solitary in the axils of the tubercles at the tips of the branches, persistent and hardening, at first 1/2– 3/4 in. long, apparently elongating as the fruit ripens up to 1 1/4 in. or perhaps more, bearing about 4 bracts and 1 involucre at the apex, glabrous; bracts 1 1/2–2 lin. long and 1–2 lin. broad, elliptic or elliptic-obovate, obtuse, concave, glabrous, ciliate; involucre 5–7 lin. in diam., broadly bowl-shaped, glabrous outside and within, with 5 glands and 5 subquadrate toothed or nearly entire and minutely ciliate lobes; glands closely sessile on the cup of the involucre, 1 1/2–2 1/2 lin. long, 1 3/4–3 lin. broad at the tips, broadly cuneately palmatifid, divided to half-way down into 3–6 linear spreading processes, recurved at the tips, slightly dilated or once or twice shortly bifid at the apex, glabrous, green and not pitted on the undivided or glandular part and the processes white: ovary sessile, quite included in the involucre, thickly pubescent with erect stiffish or somewhat bristle-like hairs; styles exserted, 2 3/4–3 lin. long, united nearly to the apex, with very short slightly spreading thickened or bifid tips; capsule not seen. null
Distribution
COAST REGION Clanwilliam Div.; near Clanwilliam, Leipoldt in MacOwan, Herb. Austr.-Afr., 2003! Marloth, 4880! Lange Kloof, Schlechter, 8389! Malmesbury Div.; between Mamre and Saldanha Bay, Drège, 8202! Piquetberg Div.; Kopje near Het Kruis, Misses Stephens & Glover, 8751! Uitenhage Div.; Cannon Hill, near Uitenhage, MacOwan, 3286 partly!WESTERN REGION Little Namaqualand; sand flats between Driefontein and Heeren Logement, Pearson, 6718!
Notes
The tubercles and leaves as represented by Jacquin are larger than on wild specimens, from which the measurements above given are taken. With regard to the specimens distributed by MacOwan as coming from Cannon Hill, that locality is undoubtedly an error, and I have no doubt the specimens were really collected near Clanwilliam, an opinion that is confirmed by the presence of pieces of E. Macowani, N. E. Br., mixed with it on all the sheets of this distribution that I have seen, as the latter species has only been collected at Clanwilliam.

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