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Pakistan | Family List | Brassicaceae

Diceratella Boiss., Diagn. Pl. Or. Nov. ser. 1. 5:80. 1844. Boiss., Fl. Or. 1: 315. 1867; Schulz in Engl. & Prantl, l.c. 560; Rech. f., l.c. 226.

Diceratella canescens

Credit: Shaukat & Azmat

  • Diceratium Boiss.

    Small shrubby herbs, often woody below, and intricately branched, canescent or tomentose with branched, stellate somewhat appressed hairs. Leaves orbicular to ovate-spathulate or ovate-oblong, petiolate; basal rosulate, entire to sparsely and shallowly broadly toothed; upper oblong, ovate, stalked to sessile, toothed to subentire. Racemes few-flowered, short. Flowers large, handsome, pink or rose; pedicels short, thickened in fruit, suberect. Sepals long, erect, not or slightly saccate at base, with a narrow membranous margin. Petals nearly twice as long as the sepals, obovate-oblong, with long claw. Stamens 6, outer 2 much shorter, filaments linear; anthers long, linear, acute. Lateral nectar glands in pairs; middle glands absent. Ovary oblong, terete, with 2 small processes below the large, emarginate stigma on valves apex, many ovuled; style indistinct, minute. Siliquae short, quadrangular, subtorulose, canescent, bilocular, late or tardily dehiscent, with 2 blunt horns (processes) near the apex (below the stigma); valves with 6-8 depressions towards the inner side, with a prominent midrib ending in the apical process; septum somewhat rigid, membranous, yellowish; seeds small, suborbicular, compressed.

    About 7 species, chiefly African and W. Asian; 2 recorded for Pakistan.

    It is a new record for our area, whose eastern most limits now extend to Pakistan. It looks very similar to Matthiola but fruits different, with 2 horn-like appendages at the apex of the valves and below the stigma. Some species of Matthiola also have horn-like appendages but from the stigmatic lobes.

    1 Basal and lower leaves suborbicular-spathulate, shallowly crenate, much larger than the upper, few leaves; hairs brownish, dense or floccose, minute, branched   Diceratella floccosa
    + Basal and lower leaves ovate-spathulate, entire or distantly toothed, not much different from the upper, many leaves; hairs whitish, stellate, appressed or sub-appressed   Diceratella canescens

    Lower Taxa

    Related Synonym(s):


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