EXPERIMENTAL HYBRIDS IN EPILOBIUM (INCLUDING SECT. ZAUSCHNERIA) SPECIES WITH N = 15 (ONAGRACEAE) |
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| Authors: | Steven R Seavey Peter H Raven |
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| Institution: | Department of Biology, Lewis and Clark College, Portland, Ore., 97219
Missouri Botanical Garden, 2345 Tower Grove Ave., St. Louis, 63110 |
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| Abstract: | Experimental hybrids involving the three diploid subspecies of Epilobium sect. Zauschneria formed 15 bivalents at meiotic metaphase I, as did experimental hybrids between the three other species of Epilobium (comprising sect. Cordylophorum) with n = 15. The gametic chromosome number of E. suffruticosum Nutt., n = 15, and its relationship to the other two species are reported for the first time. Although we have not obtained hybrids between the species of these two sections, their morphological similarities are impressive and they are surely closely related. |
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