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Pakistan | Family List | Brassicaceae | Alyssum

Alyssum stapfii Vierh. in Verh. Zool-Bot Ges. Wien. 64: 261,t.7,f.1. 1914. Rech. f., l.c. 161.

Alyssum stapfii

Credit: Azmat

  • Alyssum buschianum Grossh.
  • Alyssum campestre var. genuinum Boiss.

    Annual, 5-20 cm tall, branched, erect or suberect, clothed with stellate hairs. Leaves oblanceolate or spathulate, sessile, cuneate, 10-25 mm long, 2.5-8 mm broad, entire, apex rounded, obtuse or acute. Racemes 20-40-flowered, up to 10 cm long in fruit and somewhat lax. Flowers c. 2.5 mm across, yellowish; pedicel up to 5 (-8) mm long in fruit, ascending or subspreading. Sepals 1.5-2 mm long,± persistent. Petals 2.5-3 (-5) mm long, 1.5-2 mm broad, oblong-cuneate with limb somewhat constricted, apex emarginate or somewhat bilobed. Stamens c. 2:2.5 mm long; filaments appendaged; anthers c. 0.2 mm long. Siliculae orbicular, 4-5.5 mm in diam., apex subemarginate; valves equally tumid with flat narrow margin, pubescent with stellate, somewhat longer hairs; style 1-2 mm long, tapering; stigma minute; seeds 2 (rarely 1) in each locule, c. 1.5 mm long, ovate, brown.

    Type: S. Iran, Kuh Bil, Stapf 250 (WU).

    Distribution: S.W. Asia, Afghanistan and Pakistan.

    The major portion of Alyssum campestre L. is Alyssum minus (L). Rothm. (in Fedde, Repert. 50:7.1941 =Clypeola minor L.,Fl. Monsp. Northorst, Dissert. no.70,21.1756 —not of Amoen. Acad. 4.1759; Alyssum campestre L., Sp.P1.ed.2:909.1763-p.p.), with style usually less than 1 mm long. Remaining portion of Alyssum campestre belongs to Alyssum strigosun Banks & Soland. (in Russell, Nat. Hist. Allepo 2:257.1794) and Alyssum hirsutun M.Bieb.,(Fl.Taur.-Canc.2: 116.1808), with dimorphous stellate indumentum on fruits. Alyssum campestre L., therefore, do not have any separate standing of its own.


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