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FOC | Family List | FOC Vol. 8 | Brassicaceae

70. Parrya R. Brown, Chlor. Melvill. 10. 1823.

条果芥属 tiao guo jie shu

Parrya nudicaulis

Credit: Photo: Barbara Ertter

Achoriphragma Soják; Neuroloma Andrzejowski ex de Candolle.

Herbs perennial, with well-developed caudex, rarely subshrubs or shrubs. Trichomes simple or absent, multicellular glands present or absent. Stems leafy or leafless. Basal leaves petiolate, rosulate, simple, entire, dentate, or pinnately dissected. Cauline leaves similar to basal, often absent. Racemes ebracteate, elongated in fruit. Fruiting pedicels erect, ascending, or divaricate. Sepals linear or oblong, caducous, erect, unequal, base of lateral pair saccate, margin membranous. Petals purple, pink, or white; blade obovate, apex rounded or emarginate; claw subequaling or longer than sepals. Stamens 6, tetradynamous; filaments dilated or not at base; anthers oblong or linear, obtuse at apex. Nectar glands 2, lateral, annular to semiannular; median glands absent. Ovules 10-50 per ovary. Fruit dehiscent siliques, linear, oblong, or lanceolate, strongly latiseptate or rarely subterete or 4-angled, sessile or subsessile, persistently attached to pedicel, unsegmented; valves leathery, with a prominent midvein and obscure to distinct lateral and marginal veins, smooth or torulose; replum almost always flattened; septum complete, membranous or thickened, translucent or opaque; style distinct, 0.5-7 mm; stigma conical or cylindric, 2-lobed, lobes prominent, connate, decurrent. Seeds uniseriate, often broadly winged, suborbicular or oblong, strongly flattened; seed coat smooth, not mucilaginous when wetted; cotyledons accumbent.

About 25 species: C Asia, Himalayas, two species in North America; four species in China.

1 Fruit with terete replum concealed by thickened valve margin; plants eglandular, hirsute with subsetose straight trichomes; flowering stems mostly with 1 or few leaves   4 P. beketovii
+ Fruit with visible, strongly flattened replum, valve margin not thickened; plants glandular or eglandular, glabrous or pubescent with soft, often crisped trichomes; flowering stems leafless.   (2)
2 (1) At least some leaves pinnatifid or pinnatisect; fruit 2-2.5(-3) mm wide; style (1.5-)2.5-6 mm; seeds broadly oblong   3 P. pinnatifida
+ Leaves entire, dentate to dentate-sinuate, rarely subpinnatifid or repand; fruit (3.5-)4-7 mm wide; style 0.5-1.5(-3) mm; seeds orbicular or suborbicular.   (3)
3 (2) Leaves entire; petals 2.5-3 × 0.8-1.5 cm, apex deeply emarginate; lowermost fruiting pedicels 1-2.5 cm   1 P. lancifolia
+ Leaves dentate to dentate-sinuate, rarely subpinnatifid or repand; petals (1.4-)1.6-2(-2.2) × 0.6-1 cm, apex rounded or shallowly emarginate; lowermost fruiting pedicels (1.5-)2.2-7(-11) cm   2 P. nudicaulis

Lower Taxa


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