Our present knowledge of this biosystem owes much to the research he and his wife Inga did on the Rwenzori and other high mountains in East Africa .
Professor Hedberg was a pioneer in scientific knowledge on the afroalpine vegetation .
Our present knowledge of this biosystem owes much to the research Hedberg and Hedberg 's wife Inga did on the Rwenzori and other high mountains in East Africa .
Professor Hedberg was a pioneer in scientific knowledge on the afroalpine vegetation .