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Peter Tristram ... "from Bolivia, named after Lotte’s husband – T. helmutii. It matches the description well right down to petal colour. This plant came from BG as T. lotteae."
|Peter Tristram 08/15
Eric Gouda, Utrecht, University Botanic Gardens, Netherlands ... "I suspect that the plant we have from Lotte (Bolivia 1994) is a hybrid, but I have not yet tested the pollen.
The reason is that it always shows up with a malformed inflorescence, which is strange and can point in the direction of a hybrid."