THE TYPIFICATION OF THE LINNAEAN NAMES <i>ATRAGENE ALPINA</i> AND <i>A. SIBIRICA</i> (RANUNCULACEAE)

Serov, V.; Jarvis, Charles E.

doi:10.2307/1220952

Cited by 1 publication

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“…The Atragene group of Clematis was initially recognized as a distinct genus Atragene by Linnaeus (1753) with four heterogeneous species: Atragene zeylanica L., Atragene alpina L., Atragene sibirica L., and Atragene capensis L. Atragene zeylanica was transferred to the genus Naravelia for its clavate petals longer than sepals, and A. capensis to the genus Anemone for its involucre (De Candolle, 1818). Moreover, A. sibirica was found to be a species of Aquilegia (Serov & Jarvis, 1988).…”

Section: Brief Taxonomic Historymentioning

confidence: 99%

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A revision of Clematis sect. Atragene (Ranunculaceae)

Yang

Xie

2009

J of Sytematics Evolution

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Clematis sect. Atragene is revised in this paper based on the examination of a large number of herbarium specimens, extensive field observations, and morphometric analyses. Brief taxonomic history and geographical distribution of the section are given, the relationships among the species are discussed, and the evolutionary trends of some characters in the section are evaluated. The staminodes of the plants in this section may have evolved from the outer stamens with petaloid filaments and gradually disappearing anthers. Subsequently, they may have evolved in two different ways. One possibility is that the staminodes elongate and become lanceolate, as long as sepals, and their apices turn into attenuate. The other is that the staminodes are spathulate, but not elongating, as long as stamens, and their apices turn into retuse from obtuse and rounded. The evolutionary trend of sepals may be from thin to thick in texture, and the veins from non-prominent to prominent. As a result, five new series are established and nine species, two subspecies and nine varieties (including three new ranks) are recognized in this section. An identification key is provided, and each taxon is described and illustrated. Clematis sibirica and Clematis ochotensis are treated as subspecies of Clematis alpina due to their subtle differences and lack of, or few, overlapping distributions. Clematis fusijamana and Clematis fauriei are recognized as varieties of C. alpina ssp. ochotensis for the continuous variation of the velutinous strips on the sepal margins. Clematis iliensis is treated as variety of C. alpina ssp. sibirica for the continuous variation of leaf division types. Extensive variations in sepal color and basal caruncle size support degrading Clematis chiisanensis as a variety of Clematis koreana. The North American ser. Occientales may be primitive, whereas ser. Macropetalae may be the most advanced taxon in this section. Ser. Alpinae and ser. Koreanae are closely related to each other. However, the systematic position of ser. Tomentosae cannot be determined based on morphological characters alone in the present study.

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Section: Brief Taxonomic Historymentioning

confidence: 99%

“…Type: Austria. In alpibus Austriae superioris, 1600–1625, UPS‐Burser XVII: 39 (lectotype, UPS, photo seen, designated by Serov and Jarvis, 1988).…”

Section: Taxonomic Treatmentmentioning

confidence: 99%