Authority? "Bernh.", "Bernh. ex Krauss", or "Bernh. ex C.Krauss"?

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I've just noticed that different sources list different authors for Harpephyllum (/caffrum): POWO uses "Bernh."[1], WFO uses "Bernh. ex Krauss"[2], and IPNI uses "Bernh. ex C.Krauss"[3]. Which source should we follow? Ethmostigmus 🌿 (talk | contribs) 08:17, 23 July 2024 (UTC)Reply