Oedera laevis Candolle (1838a: 2)

Bergh, Nicola G., Bentley, Joanne & Verboom, George Anthony, 2018, Classification of the Relhania generic group (Asteraceae, Gnaphalieae) revisited using molecular phylogenetic analysis, Phytotaxa 344 (2), pp. 101-132 : 122

publication ID	https://doi.org/ 10.11646/phytotaxa.344.2.1
persistent identifier	https://treatment.plazi.org/id/03B58783-BC50-5928-FF16-EC22B692FA4D
treatment provided by	Felipe
scientific name	Oedera laevis Candolle (1838a: 2)
status

Treatment

19. Oedera laevis Candolle (1838a: 2) View in CoL .

Type: SOUTH AFRICA, 1832, W. J. Burchell 6870, G-DC No. 453539 (G-DC holotype!).

– Oedera muirii Smith (1927: 362) View in CoL .—Type: SOUTH AFRICA, Riversdale, Oct 1923, J.Muir 2901 (PRE holotype!, BOL isotype!)

Section VIII . Oedera sect. Relhania (L’Héritier) N.G.Bergh , stat. et comb. nov.

Basionym: Relhania L’Héritier (1789: 13) , nom. cons. ( Bremer [1976c]). Osmites Linnaeus (1764: 441) , nom. rej.— Type species: Oedera fruticosa (Linnaeus) N.G.Bergh. View in CoL ( Relhania fruticosa (Linnaeus) K.Bremer View in CoL )

Description: stems white-woolly when young. Leaves thin-textured and relatively soft, linear to narrowly obovate, spathulate or orbiculate, involute with margins narrowly rolled, leaf apex obtuse or rounded, sometimes apiculate; concave adaxial surface densely white- tomentose; abaxial surface frequently rugulose (at least when dry), glandular-punctate and resiniferous, frequently with a deciduous covering of white wool, mid-ribbed, deep green when fresh. Capitula solitary or 3–12 arranged in terminal cymes, sessile or on short, densely white-woolly peduncles up to 6 mm long, uppermost leaves obscuring the bases of the capitula. Receptacle paleate or epaleate and then sometimes also shortly squamose. Ray florets 7–40. Ligules pale yellow, never with a purple-brown abaxial stripe. Disc florets 10– 120, hermaphrodite or functionally male, in which case cypselas sterile and glabrous, and stigmatic apices only shortly cleft. Fertile cypselas glabrous to densely villose. Pappus of lacerate, ± connate scales, sometimes fused into a cup, rarely with a few additional barbellate bristles on the disc florets (Oe. corymbosa ). Six species, endemic to the CFR.

Cytology: diploids with 2n = 14 (Oe. tricephala and Oe. spathulifolia, Bremer, 1976a ).