Brassicaceae |
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Alyssum dasycarpum STEPH. EX WILLD. |
Alyssum dasycarpum STEPH. EX WILLD. |
Alyssum L. |
A. dasycarpum Steph. ex Willd., Sp. PL 3(1): 469 (1800). Syn: A. dasycarpum var. pterospermum Bordz. in Bull. Jard. Bot. Kiew 7-8: 17 (1928). Ic.: Ledeb., Ic. Fl. Ross. 3: t. 202 (1831). Figures 17, 18, pp. 371, 373. Stems up to 25 cm. Indumentum ± dense, of coarse, few and branched-rayed stellate hairs, often appearing strigose. Leaves obovate or elliptic. Inflorescence up to 15 cm, often widely branching. Pedicels divergent to ascending, often sub-adpressed to the rachis, with dense, strigose, dimorphic indumentum. Petals obovate-spathulate, bifid, 2.5-3(-4) mm. Fruit valves unequally inflated, with dense, dimorphic indumentum. Styles (l-)l.5-2 mm, strongly dilated at the bases, with dense dimorphic indumentum in the lower half. Seeds wingless. Fl. 3-6. Cultivated ground, steppe, 100-2600 m. Type: in Sibiria ad Kaman et Volfam fluvium, Stephan (holo. LE; iso BM! G! K!). Widespread. A2(A) Istanbul: Kalamiche, 1916, Azn.! A4 Çankiri: Çakmakli Da., 800-900 m, Bornm. 1929: 13859! A6 Tokat: Tokat, Aucher 4096! A7 Gümü-şane: Guans, nr. Sobran, Sint, 1894: 6143! A8 Erzurum: Horasan, 1600 m, D.29378! B3/4 Ankara: Ankara to Polatli, 720 m, Hub.-Mor. 13732! B4 Konya: Yavşan Memlehasi. D. 18706! B5 Kayseri: Incesu to Develi, 1050 m, Hub.-Mor. 10984! B6 Sivas: 4 km W of Sivas, Reese! B7 Erzincan: nr. Albuschik Chan, Sint. 1890: 2176! C2 Denizli: Tavas to Denizli, 800-900 m, Dudley, D. 35560a! C4 Konya: Konya, Reese! C5 Niğde: Niğde to Ulukişla, 1450 m, Hub.-Mor. 12818! S,W. Asia. All the Turkish material belongs to var. dasycarpum; var. minus Dudley has a limited distribution in Syria, Iran & Afghanistan. Sect. Alyssum. Annuals, biennials or perennials. Sepals monomorphic, free, inner surface glabrous. Petals usually yellow. Filaments free, unilaterally or bilaterally winged, dentate or appendaged. Nectaries globose or triangular. Fruits dehiscent, glabrous or with monomorphic or dimorphic indumentum. Loculi 2-ovulate. Seeds mucilaginous. |