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A Revision of Sullivantia (Saxifragaceae)

著者： Douglas E Soltis
版本/格式： 文章 文章 : 英语
刊登在：Brittonia, Jan. - Mar., 1991, vol. 43, no. 1, p. 27-53
数据库：JSTOR
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文件类型： 文章
所有的著者/提供者： Douglas E Soltis
ISSN:0007-196X
OCLC号码： 479486141
语言注释： English
注意： Figs. 1 and 2. Ranges of Sullivantia species. 1. Following the treatment of Rosendahl (1927) with some ranges updated by more recent collections. 2. Following the present revision compared to areas of Wisconsin glaciation (stippling). Glaciated areas from Flint (1971).
Fig. 3. Variation in basal leaf form of Sullivantia oregana and S. hapemanii. A-E. S. oregana. F-J. S. hapemanii var. purpusii. K-O. S. hapemanii var. hapemanii.
Fig. 4. Variation in basal leaf form of Sullivantia sullivantii. A, C, E, and F would be attributed to S. renifolia (sensu Rosendahl, 1927) based on geographic location. B, D, G, and H would be attributed to S. sullivantii (sensu Rosendahl, 1927) based on geographic location. I-L are leaves from one population of S. sullivantii from Hocking Co., Ohio.
Fig. 5. Whole plants of Sullivantia illustrating inflorescence characters. All ca ×½. A. S. oregana. B. S. hapemanii var. hapemanii. C. S. sullivantii.
Fig. 6. Flowers of Sullivantia taxa. A. S. oregana. B. S. hapemanii var. purpusii. C. S. hapemanii var. hapemanii. D. S. sullivantii.
Fig. 7. Average sepal length/sepal width values for selected populations of Sullivantia sullivantii.
Fig. 8. Petals from Sullivantia taxa. Petals were cleared and stained in safranin as described in Materials and Methods. A. S. oregana. B, C. S. hapemanii var. purpusii. D-F. S. hapemanii var. hapemanii. G-J. Would be attributed to S. renifolia (sensu Rosendahl, 1927). K-N. Would be attributed to S. sullivantii (sensu Rosendahl, 1927) based on geographic location.
Fig. 9. Flowers of Sullivantia showing ovary position difference (below arrows) and free hypanthium (above arrows). A. S. sullivantii. B. S. hapemanii var. hapemanii.
Fig. 10. Scanning electron micrographs of Sullivantia seeds, both ×50. A. S. hapemanii var. purpusii. B. S. sullivantii.
Fig. 11. Distribution of flavonoid profiles in Sullivantia sullivantii. Letters correspond to flavonoid profiles in Tables II and III.
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摘要：

Sullivantia (Saxifragaceae) is restricted to the United States; its species occur in very specialized habitats such as wet cliffs and moist canyon walls in scattered localities from Washington and Oregon, eastward to Wyoming, Montana, Colorado, Missouri, Iowa, Illinois, Minnesota, Wisconsin, Indiana, Ohio, and Virginia. Relationships in the genus were reevaluated using data from morphology (including the use of greenhouse-grown plants), crossability, and flavonoid chemistry. The conclusion of this study is that Sullivantia comprises four morphologically similar allopatric taxa: S. oregana, S. hapemanii var. hapemanii, S. hapemannii var. purpusii, and S. sullivantii.

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