foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.8 (2001)              | Family List  Brassicaceae  PDF Goldbachia  PDF   |  eFloras.org Link Font:+ Big | - Small
   82. Goldbachia  de Candolle
四棱荠属   si leng ji shu
  

  

Herbs annual. Trichomes absent or eglandular, simple. Stems erect, branched. Basal leaves petiolate, rosulate or not, entire, dentate, or lyrately pinnatifid. Cauline leaves sessile, auriculate or amplexicaul at base, rarely not auriculate, entire, repand, or dentate. Racemes ebracteate, elongated in fruit. Fruiting pedicels filiform, recurved or reflexed, articulate at base or both ends. Sepals ovate or oblong, suberect, base of lateral pair not saccate or subsaccate. Petals white, pink, or purplish, longer than sepals; blade spatulate, apex obtuse; claw subequaling sepals. Stamens 6, slightly tetradynamous; median filament pairs flattened at base, lateral pair filiform; anthers ovate, obtuse at apex. Nectar glands 4, minute; median glands free or confluent with laterals; lateral glands semiannular, intrastaminal. Ovules 1-3 per ovary, subapical. Fruit indehiscent nutletlike silicle, often breaking into 1-seeded units, oblong, ovoid, or ellipsoid, 1-loculed or transversely 2- or 3-loculed, terete or 4-angled, sessile, woody, often prominently veined, glabrous or papillate, smooth or torulose, sometimes verrucose-reticulate; replum rounded; septum absent; style absent, obsolete, or distinct, thickened and subconical; stigma capitate, entire. Seeds uniseriate, wingless, oblong, plump; seed coat smooth, not mucilaginous when wetted; cotyledons incumbent.

Six species: C and SW Asia, E Europe; three species in China.

  
1Cauline leaves widest at base, amplexicaul; sepals densely pubescent with crisped trichomes; fruit pointed upward, fruit and fruiting pedicels form a distinct angle 30-120 degrees1  G. laevigata    四棱荠
+Cauline leaves widest at middle, auriculate or sagittate, or sessile and not auriculate; sepals glabrous or sparsely pubescent with straight trichomes; fruit pointed downward, fruit and fruiting pedicels form a straight line.(2)
   
2(1)Cauline leaves often denticulate, sparsely ciliate; mature fruit terete or slightly 4-angled, abruptly constricted to beaklike apex 0.5-1.5 mm; fruiting pedicels (4-)6-10(-12) mm, slightly shorter or slightly longer than fruit2  G. pendula    垂果四棱荠
+Cauline leaves subentire or entire, not ciliate; mature fruit distinctly 4-angled, attenuate to beaklike apex (2-)2.5-3 mm; fruiting pedicels 1.5-3(-4.5) mm, much shorter than fruit3  G. ikonnikovii    短梗四棱荠
   
   Lower Taxon
  • Goldbachia laevigata  (Marschall von Bieberstein) de Candolle  四棱荠
  • Goldbachia pendula  Botschantzev  垂果四棱荠
  • Goldbachia ikonnikovii  Vassilczenko  短梗四棱荠