Hillebrandia sandwicensis
... that of the 1,401 species in the family Begoniaceae, Hillebrandia sandwicensis is the only one not in the genus Begonia?
... that of the 1,401 species in the <a href="./Family_(biology)" id="mwEKI" rel="mw:WikiLink" title="Family (biology)">family</a> <a href="./Begoniaceae" id="mwEKM" rel="mw:WikiLink" title="Begoniaceae">Begoniaceae</a>, <i id="mwEKQ"><b id="mwEKU"><a href="./Hillebrandia" id="mwEKY" rel="mw:WikiLink" title="Hillebrandia">Hillebrandia sandwicensis</a></b></i> is the only one not in the <a href="./Genus" id="mwEKc" rel="mw:WikiLink" title="Genus">genus</a> <i id="mwEKg"><a href="./Begonia" id="mwEKk" rel="mw:WikiLink" title="Begonia">Begonia</a></i>?