1 September 1994 Spontaneous Bigeneric Hybrids in Cactaceae
Gordon D. Rowley
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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.

Gordon D. Rowley "Spontaneous Bigeneric Hybrids in Cactaceae," Bradleya 1994(12), 2-7, (1 September 1994). https://doi.org/10.25223/brad.n12.1994.a2
Published: 1 September 1994
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