Friedrich Ritter
Friedrich Ritter (9 May 1898 – 9 April 1989) was a German botanist who collected and described many species of cacti. Ritterocereus is named in his honour.
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Wikipedia
Friedrich Ritter (9 May 1898 – 9 April 1989) was a German botanist who collected and described many species of cacti. Ritterocereus is named in his honour.