Hieracium scitulum subsp. aquae-albae Korb & Zahn, Korb & Zahn

Vogt, Robert & Gottschlich, Günter, 2023, Type material in the Hieracium (Compositae: Cichorieae) collection of Joseph Bornmüller, Phytotaxa 613 (2), pp. 81-126 : 114

Hieracium scitulum subsp. aquae-albae Korb & Zahn [in Zahn (1936: 244), descr. Germ.], sub sp. nov.

Ind.loc.:“Riesengebirge:amWeisswasser unter derWiesenbaude!Kamm zwischen Elbfall und Schneegrubenbaude! Steinboden Ɨ Geiergucke!”

Holotype:— CZECH REPUBLIC. Liberec: Riesengebirge [Krkonoše] (Böhmen), zwischen Elbfall [Labský vodopád] und Schneegrubenbaude , 19 August 1930, J. Bornmüller ( B barcode B 10 1154501!) [ Fig. 6 ].

– Description: “Plant 15–20 cm, with short and subdense indumentum of simple and stellate hairs, with 3–5 capitula; acladium 3–10 cm long; branches 2–3, long, curving upwards, with some leaves and one or two capitula; peduncles glandular and hairy by 2–3 mm long simple hairs and with 2–5 narrow, leaf-like bracts. Involucre 11–13 mm, blackish, with many grey, simple hairs and moderately glandular; phyllaries +/– large, +/– obtuse to +/– acute. Florets short, tubular. Leaves numerous, +/– long petiolate, somewhat hairy by simple hairs; the outer ones (often lacking) elliptical to oblongspathulate, the inner ones (or nearly all) oblong or +/– lanceolate, acute, denticulate or short dentate; stem leaves 2–3, rather long, lanceolate or slim. More often with 1–3 secondary stems.”— K. H. Zahn.

Remarks: —We validate the name by translating Zahn’s description. Further original material: CZECH REPUBLIC. Liberec: Riesengebirge [Krkonoše Mts.], zwischen Steinboden und Geiergucke, 1450 m, 18 August 1930, J. Bornmüller (B barcode B 10 1154502!).

Figures

FIGURE 6. Holotype of Hieracium scitulum subsp. aquae-albae Korb & Zahn (B barcode B 10 1154501) with handwritten determination particulars of K. H. Zahn.