Hieracium murorum subsp. pictoprasinum Fenaroli & Zahn (1927: 25)

Fainelli, Federico, Gottschlich, Günter & Orsenigo, Simone, 2024, Nomenclatural notes on some names in the Hieracium tenuiflorum group (Asteraceae) of the Alps, Phytotaxa 645 (2), pp. 131-148 : 138

18. Hieracium murorum subsp. pictoprasinum Fenaroli & Zahn (1927: 25)

Ind. loc.:—“Longobardia bor.: ad rupes Sebini (Lago d’Iseo) inter pagos Castro et Riva di Solto; m. 200 c.”.

Type:—[ ITALY, Lombardy, Prov. BG] “Lago d‘Iseo (Castro), Apr 1925, L. Fenaroli” (lectotype, designated here: TR barcode TR-BOT027327!) ( Fig. 2 ).

Remarks:— Fenaroli & Zahn (1927) validly described H. murorum subsp. pictoprasinum with a detailed diagnosis and proposed this new subspecies as an intermediate form between H. bifidum subsp. eriopodoides (Zahn) Zahn (1921: 434) and H. tenuiflorum . Probably one of the most peculiar morphological characters of this taxon (to which the name also refers) are the leaves that are light blue-green, exceptionally dark-brown spotted (“ supra dilute prasinioviridia, eximie atrobrunneo-maculata ”). In addition to the diagnosis, the authors added the following sentence: “ Hab.: Longobardia bor.: ad rupes Sebini (Lago d’Iseo) inter pagos Castro et Riva di Solto; m 200 c. ” A specimen collected by Fenaroli was found at TR (TR-BOT027327) bearing a single plant (with three rosette and two stems) and the original label with a statement of the locality: “Lago d’Iseo (Castro)”. A second label contained the determination handwritten by Zahn “ H. murorum L. spp. pictoprasinum Fenaroli et Zahn, bifidum <tenuiflorum 1926 Zahn ”. The last part refers to the intermediate morphology and to the year when the specimen was revised. On the same label there is a handwritten note by Fenaroli with the name “ H. bifidum eriopodoides, Castro 1925.4 ”.

Current name:— Hieracium tenuiflorum subsp. pictoprasinum (Fen. & Zahn) Gottschl. in Raab-Straube & Raus (2013: 157).

Figures

FIGURE 2. Lectotype of Hieracium murorum subsp. pictoprasinum (Apr 1925, L. Fenaroli, Erbario Fenaroli TR-BOT027327).