foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.8 (2001)              | Family List  Brassicaceae  PDF Baimashania  PDF   |  eFloras.org Link Font:+ Big | - Small
   86. Baimashania  Al-Shehbaz
白马芥属   bai ma jie shu
  

  

Herbs perennial, scapose, pulvinate, with a well-developed and few- to many-branched caudex covered with leaves or leaf remains of previous years. Trichomes simple and stalked, 1-forked, restricted to leaves. Stems absent. Basal leaves petiolate, rosulate, simple, entire, persistent, with stramineous, thick, flattened petioles. Cauline leaves absent. Racemes 2- or 3-flowered and ebracteate, or flowers solitary on short pedicels originating from axils of rosette leaves. Fruiting pedicels slender, erect or ascending, often hidden among basal leaves. Sepals oblong, base of lateral pair not saccate, margin membranous. Petals pink; blade spatulate, apex obtuse; claw slightly differentiated from blade, subequaling sepals. Stamens 6, slightly tetradynamous; filaments not dilated at base; anthers oblong, obtuse at apex. Nectar glands confluent and subtending bases of all stamens; median glands present. Ovules 6-12 per ovary. Fruit linear siliques, strongly latiseptate, sessile; valves with an obscure midvein, smooth, longitudinally striate; replum rounded; septum complete, membranous, with a distinct midvein; style slender, to 1 mm; stigma capitate, entire. Seeds uniseriate, wingless, oblong, slightly flattened; seed coat minutely reticulate, not mucilaginous when wetted; cotyledons accumbent.

* Two species.

  
1Leaves ovate or oblong, densely pubescent all over; flowers solitary; ovules 6-8 per ovary; Yunnan1  B. pulvinata    白马芥
+Leaves narrowly linear, glabrous except for ciliate petiole margin and a tuft on leaf apex; flowers mostly in 2- or 3-flowered racemes; ovules 10-12 per locule; Qinghai2  B. wangii    王氏白马芥
   
   Lower Taxon
  • Baimashania pulvinata  Al-Shehbaz  白马芥
  • Baimashania wangii  Al-Shehbaz  王氏白马芥