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Published In: Bulletin de la Société Botanique de France 33: 404. 1886. (Bull. Soc. Bot. France) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 7/20/2009)

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DIPOMA Franchet, Bull. Soc. Bot. France 33: 404. 1886.

Ihsan A. Al-Shehbaz

Tribe: Eutremeae?

Name derivation: from Greek dis, double, and poma, cup, in reference to the cup-shaped fruit valves.

Type species: D. iberideum Franchet.

     Herbs, perennial; with slender, few-scaled rhizomes. Trichomes simple and subsetose, mixed with short-stalked to submalpighiaceous ones. Multicellular glands absent. Stems decumbent to ascending, simple or sometimes branched. Basal leaves petiolate, rosulate, simple, entire or 3-5-lobed near apex, dry by flowering time; cauline leaves sessile and attenuate at base, not auriculate, entire, dentate at apex. Racemes bracteate throughout, several-flowered, dense, elongated considerably in fruit; rachis straight; fruiting pedicels ascending to divaricate at base, strongly recurved and often forming a loop. Sepals oblong, free, ascending to slightly spreading, equal, base of lateral pair not saccate, margin membranous. Petals white, sometimes veins lavender, erect at base with flaring blade, much longer than sepals; blade broadly obcordate to orbicular, apex emarginate or rarely subrounded, margin entire; claw well developed and distinctly differentiated from blade, glabrous, unappendaged, entire. Stamens 6, slightly exserted, erect, subequal; filaments filiform, wingless, unappendaged, not dilated at base, glabrous, free; anthers ovate to suboblong, sagittate at base, not apiculate at apex, not coiled after dehiscence. Nectar glands 4, distinct, lateral, 1 in eachside of lateral stamen.; median nectaries absent. Ovules 4 per ovary; placentation apical. Fruit dehiscent, capsular silicles, oblong to ovoid, terete or slightly angustiseptate, sessile, unsegmented; valves membranous, sparsely to densely hirsute with subsetose trichomes, rarely glabrous, not keeled and rounded, smooth, wingless or with small winglike appendages; gynophore absent; replum strongly flattened and to 1 mm wide; septum complete, membranous, tanslusent, veinless; style conical, persistent, glabrous; stigma capitate, entire, unappendaged. Seeds aseriate, wingless, oblong, flattened; seed coat minutely reticulate, not mucilaginous when wetted; cotyledons accumbent, entire.

One species: endemic to China.


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