Alyssum Alyssum, Waldst. & Kit.
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publication ID |
https://doi.org/10.5281/zenodo.302862 |
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persistent identifier |
https://treatment.plazi.org/id/1213417E-FEAC-FEAD-C837-F68D49C4CD21 |
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treatment provided by |
Plazi |
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scientific name |
Alyssum Alyssum |
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42. A. murale Waldst. & Kit. , Pl. Rar. Hung. 1: 5 (1799).
Caespitose perennial 25-70 cm, with long non-flowering stems or dense rosettes of leaves. Basal leaves obovate-spathulate or oblanceolate-spathulate; cauline usually 10-20 x 3-6 mm, lanceolate or oblanceolate, grey-green above, white or grey beneath, larger than the basal leaves. Petals 2-3- 5 mm, entire, rarely emarginate. Silicula 2-5- 5 x 1 - 5-4 mm, obtuse to emarginate, pubescent, the hairs with 6—10(—13) rays; valves flat, but often undulate; style 0-5-2 mm. Seeds c. 3 mm; wing 0- 2-0- 8 mm wide. S.E. Europe. Al Bu Cr Gr Ju Rm Rs (W, K).
Very variable. The following is a key to some of the more distinct variants that have been described, but many intermediates occur and their distributions do not allow of a satisfactory subspecific treatment.
1 Plant densely hirsute, hairs with long spreading rays
A. pichleri 1 Plantappressed-pubescent, hairs with appressed rays
2 Style of silicula 0-5-1 mm; inflorescence subumbellate; pedicels filiform, flexuous A. chalcidicum 2 Styleof silicula(0-8-)l- 2m m; inflorescencecorymbose,the branches not congested; pedicels stout, rigid
3 Hairsonthesilicula0- 35 mmin diameteror more,± dense; leaves acute A. murale 3 Hairsonthe silicula0 -2-0-3 mmin diameter,sparse;cauline leaves ±obtuse
4 Decumbent; silicula elliptic-obovate to orbicular-obovate
A. degenianum 4 Usually erect; silicula elliptical or orbicular
5 Petals 2-2-5 mm, obtuse, sparsely pubescent; style glabrous
A. chlorocarpum 5 Petals 3-3-5 mm, emarginate; style sparsely pubescent
A. subvirescens A. chalcidicum Janka , Österr. Bot. Zeitschr. 22: 175 (1872). W. & C. Balkan peninsula.
A. chlorocarpum Hausskn. , Mitt. Thür. Bot. Ver. nov. ser., 3-4:
113 (1893). W. & C. Balkan peninsula.
A. degenianum E. I. Nyârâdy , Bui. Gräd. Bot. Cluj T. 74 (1927).
S. Bulgaria (Rodopi), Thasos.
A. murale sensu stricto. Throughout the range of the species. A. pichleri Velen. , FI. Bulg. 38 (1891). E. Balkan peninsula,
S. Romania.
A. subvirescens Formanek , Verh. Naturf. Ver. Brünn 37: 195
(1898). C. Balkan peninsula.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Alyssum Alyssum
| Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1964 |
A. murale
| Waldst. & Kit. 1799: 5 |