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Taxonomic and phytogeographical problems in Astragalus of the Old World and South-West Asia

Published online by Cambridge University Press:  05 December 2011

D. Podlech
Affiliation:
Botanische Staatssammlung, Menzingerstrasse 67, D-8000 München 19, B.R.D.
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Synopsis

Astragalus, excluding Astracantha (formerly Astragalus subgenus Tragacantha), has a world total of c. 2500 species, of which c. 500 are in the New World; it is one of the largest genera of flowering plants. The estimated number of species in the Flora Iranica area is c. 900–1000. Because of the huge size of the genus, no one person is familiar with all its groups; although 150 sections have been described, many are poorly delimited, often not typified and many untenable. In the Old World the genus is almost entirely restricted to the northern hemisphere. Sections with primitive characters mostly contain mesophytic species widespread in mountains and relatively humid regions; in the more advanced sections the species are adapted to dry or arid conditions.

Only a few sections are strictly endemic to the Flora Iranica area (e.g. sects. Microphysa, Acanthophace, Leucocercis). In 2 of the better known large sections (Astragalus and Caprini) there are 2 main centres of diversity: the Armenian knot and the Zagros mountains; Afghanistan and the adjacent Pamir-Alai region. Their patterns of distribution and migration are probably repeated in several other sections in the genus.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1986

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References

Agerer-Kirchhoff, Ch. 1976. Revision von Astragalus L. sect. Astragalus (Leguminosae). Boissiera 25, 1197.Google Scholar
Agerer-Kirchhoff, Ch. & Agerer, R. 1977. Eine neue Sektion der Gattung Astragalus L.: Laxiflori Agerer-Kirchhoff. Mitteilungen der Botanischen Staatssammlung Miinchen 13, 203234.Google Scholar
Barneby, R. C. 1964. Atlas of North American Astragalus. Memoirs of the New York Botanical Garden 13, 11188.Google Scholar
Becht, R. 1978. Revision der Sektion Alopecuroidei DC. der Gattung Astragalus. Phanerogamarum Monographiae X. Vaduz.Google Scholar
Boissier, E. 1872. Astragalus in Flora Orientalis 2, 205498. Geneva: H. Georg.Google Scholar
Bunge, A. 1868/1869. Generis Astragali species gerontogeae. Mémoires de l'Academie Impériale des Sciences de Saint Petersbourg 11 (16), 1–140 and 15 (1), 1254.Google Scholar
Chamberlain, D. F. & Matthews, V. A. 1970. Astragalus. In Flora of Turkey and the East Aegean Islands, vol. 3, ed. Davis, P. H., pp. 49254. Edinburgh: University Press.Google Scholar
Deml, I. 1972. Revision der Sektionen Acanthophace Bunge und Aegacantha Bunge der Gattung Astragalus L. Boissiera 21, 1235.Google Scholar
Hedge, I. C. 1986. Labiatae of South-West Asia: diversity, distribution and endemism. Proceedings of the Royal Society of Edinburgh 89B, 2335.Google Scholar
Komarov, V. L., ed. 1946. Flora URSS vol. 12. Moskva, Leningrad: Acad. Sci. URSS.Google Scholar
Ott, E. 1978. Revision der Sektion Chronopus Bge. der Gattung Astragalus L. Phanerogamarum Monographiae IX. Vaduz.Google Scholar
Podlech, D. 1975a. Revision der Sektion Stipitella G. Grig, ex Podlech der Gattung Astragalus. Mitteilungen der Bolanischen Staatssammlung München 12, 3350.Google Scholar
Podlech, D. 1975b. Revision der Sektion Caraganella Bge. der Gattung Astragalus L. Mitteilungen der Bolanischen Staatssammlung München 12, 153166.Google Scholar
Podlech, D. 1982. Neue Aspekte zur Evolution und Gliederung der Gattung Astragalus L. Mitleilungen der Botanischen Staatssammlung München 18, 359378.Google Scholar
Podlech, D. 1983. Zur Taxonomie und Nomenclatur der tragacanthoiden Astragali. Mitleilungen der Botanischen Staatssammlung München 19, 123.Google Scholar
Putschova, E. G. 1967. Vidy sektzii Chaetodon i ee polozhenie v rode Astragalus. Taschkent.Google Scholar
Rechinger, K. H. 1986. Cousinia: morphology, taxonomy, distribution and phytogeographical implications. Proceedings of the Royal Society of Edinburgh 89B, 4558.Google Scholar
Vvedensky, A. I., ed. 1981. Conspectus Florae Asiae Mediae, vol. 6. Taschkent: Acad. Sci. UzSSR.Google Scholar
Wagenitz, G. 1986. Centaurea in South-West Asia: patterns of distribution and diversity. Proceedings of the Royal Society of Edinburgh 89B, 1121.Google Scholar