Inulanthera nuda KällersjÖ

Magoswana, S. L., Boatwright, J. S., Manning, J. C. & Magee, A. R., 2016, A taxonomic revision of Inulanthera (Asteraceae: Anthemideae) *, South African Journal of Botany 105, pp. 141-157 : 152-153

6. Inulanthera nuda KällersjÖ in Nord. J. Bot. 5 (6): 539 (1986),

as a replacement name for Pentzia schistostephioides M.Taylor in Bull. Misc. Inform. Kew: 60 (1940) [not Inulanthera schistostephioides (Hiern.) KällersjÖ].

Type: Zimbabwe, Inyanga Downs, by water, 19 Oct. 1935, Eyles 8479 (K, holo. – image!; SRGH – image!, iso.).

Multi-stemmed shrub 0.80–2.0 m, resprouting from a woody caudex, stems simple or densely branched in upper half, branches 3–8 mm diam., densely grey to whitish woolly. Leaves sub-erect to spreading, ovate to lanceolate, 10–70 × 5–40 mm, pinnatisect to bi-pinnatisect, lobes 3 to 7, lanceolate to oblong, 2–5 mm long, base auriculate, margins revolute, densely felted, coriaceous; axillary shoots developed from upper leaves. Capitula in dense compound corymbs 45–65 mm across, primary branches 15–40 mm long, secondary branches 5–20 mm long, inflorescence bracts elliptic to lanceolate, 4–10 × 1–3 mm. Involucre campanulate to subglobose, 4–8 × 4–6 mm, pubescent to glabrescent; outer bracts elliptic, 2–4 × 0.5–1.0 mm, acuminate, margins serrulate. Receptacle epaleate. Florets 70 to 75. Pappus of scales, partially fused into a coroniform structure. Cypselas obconic, 1–2 × 0.5–1.0 mm, weakly 8- to 10-ribbed, glabrous. Fig. 11 .

Diagnostic characters

Inulanthera nuda is a distinctive species with large (> 50 mm long) grey‐ woolly, pinnatisect to bi-pinnatisect leaves with strongly revolute margins ( Fig. 11B ) and an epaleate receptacle, unique in the genus.

Distribution, ecology and phenology

This poorly collected species is only known from Inyanga in Zimbabwe, where it occurs on mountain ridges above 2000 m ( Fig. 9 ). The species flowers from September to November.

Additional specimens examined

Zimbabwe. 1832 (Mutare): Inyanga, Nyangani Farm (− AB), Chase 1899 (PRE). Inyanga, Pungwe Valley (− BA), Hopkins s.n. (PRE); Rhodes, Inyanga Estate (− BA), Brain 6752 (MO, PRE).

Figures

Fig. 11. Inulanthera nuda, Brain 6752 (MO).A.Flowering branch.B.Leaf.C.Involucral bracts.D.Floret.E.Cypsela.F.Anthers.Scales:A and B:10 mm; D–F: 1 mm.Artist: S.L.Magoswana.

Fig.9. Known distribution of Inulanthera leucoclada (circles),I.montana (stars) and I.nuda (triangles).