- A-Z
- Haussknechtia : Mit...
- Heft 11
- Kritische Revision ...
- Autor(in)
- Erschienen
- 2006
- DOI
- Seitenbereich
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175 - 194
- Zusammenfsg.
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In former times there were greater difficulties to find a satisfactory place for Thlaspi lilacinum BOISS. & A. HUET in the genus Thlaspi L. After intensive investigations this species became the type-species of the genus Callothlaspi described by me (Meyer 1973: 457). Haussknecht (1890: 15; as Thlaspi chlorifolium Hausskn. & BORNM.) put it to the sect. Apterygium Ledeb. within Thlaspi because of the lacking of wings at the fruit (silicula). Boissier (1867: 330) put it to the sect. Pterotropis DC., but in the next neighbourhood to the sect. Apterygium. The few species of the genus Callothlaspi are lasting several years and are hapaxanthous after flowering. They differ from the genera separated from Thlaspi sens. lat. by me (Meyer 1973, 1979) inclusive of the genus Noccaea MOENCH widespread with many species by the obcordate wingless siliculae with vigorous venation on the valves, their cone-shaped more diagonal situated amplexicaulous and exauriculate cauline leaves, the solid cells of the dissepiment, and in the seed-coat by the great cells of the outer epidermis with great gelatinoid bodies inside. From the typespecies Callothlaspi lilacinum (BOISS. & A. Huet) F.K. Mey., distributed in NE- Anatolia, differs the more southern in the Antitaurus occurring C. antitauricum F.K. Mey. by narrower fruits and smaller seeds. Surprisingly a third species could be observed in the westernmost Caucasian mountains, Callothlaspi abchasicum F.K. Mey. which has ± bigger seeds and shorter and broader siliculae. With Callothlaspi cariense (CARLSTRÖM) F.K. Mey. and Callothlaspi camlikense (Aytaq, Nordt & Parolly) F.K. Mey. from SW-Anatolian serpentines near relatives has been found the ripe fruits of which show small wings in their upper part, but other features bring the certainty to see them as members of the genus Callothlaspi. The recently described Thlaspi watsonii P.H. Davis which was said by the author to stand in nearer relationship to Thlaspi lilacinum BOISS. & A. HUET [= Callothlaspi lilacinum (BOISS. & A. HUET) F.K. MEY.], has no siliculae but obvious siliquae as fruits. Also the basal leaves are hairy with bifid hairs and the cauline leaves have dispersed simple and bifid hairs. So this species seems to belong to the genus Arabis L. in any case. So it has been newly combined under the genus Arabis L. as Arabis watsonii (P.H. DAVIS) F.K. MEY.
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