Twenty nothogeneric names, some of them new, cover the known cases of spontaneous intergeneric hybrids in Cactaceae. They can be grouped into 5 comparia in geographically distinct areas, some sharing the same pollinator, others with up to 4 different pollen vectors probably involved. Possible origins by cross-pollination, and the evolutionary significance of wide crossing are briefly discussed.
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1 September 1994
Spontaneous Bigeneric Hybrids in Cactaceae
Gordon D. Rowley
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Bradleya
Vol. 1994 • No. 12
September 1994
Vol. 1994 • No. 12
September 1994