foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.5 (2003)              | Family List  Molluginaceae  PDF     |  eFloras.org Link Font:+ Big | - Small
   Molluginaceae  Hutchinson
粟米草科   su mi cao ke
  
Authors:Lu Dequan (鲁德全) ; Heidrun E. K. Hartmann

  

Herbs annual or perennial, subshrubs, or shrubs, rarely dioecious, glabrous or rarely hairy. Stems erect or prostrate. Leaves simple, alternate, rarely opposite, often in a basal rosette or in pseudowhorls on stems, margin entire; stipules absent or membranous. Inflorescences terminal or in seemingly axillary cymes, rarely as a solitary flower. Flowers bisexual, rarely unisexual, actinomorphic, hypogynous, rarely perigynous. Tepals 5, rarely 4, free or connate below into a tube, lobes white or pink to purple, sometimes yellow inside (in Glinus). Petals absent or few to many, white, pink, or purple. Stamens 3-5 or many, arranged in several rings, free or connate at base in bundles; anthers dehiscing by longitudinal slits. Ovary superior, syncarpous (in Gisekia developmentally syncarpous; fruit a deeply lobed schizocarp); carpels 2-5 or many, placentation axile, rarely seemingly basal. Stigmas as many as locules. Ovules 1 to many per locule. Fruit usually a loculicidal capsule or deeply (3-)5-15-lobed mericarps (in Gisekia), rarely breaking into 2 nutlets [in Limeum Linnaeus, not in Flora area]. Seeds with embryo curved around a hard, starchy perisperm.

About 14 genera and 120 species: arid, tropical and subtropical regions of both hemispheres; three genera and eight species in China.

The relationships of the anomalous genus Gisekia are uncertain. In the past, Gisekia has been included in Aizoaceae, often together with Molluginaceae. Recent treatments offer either a placement in Phytolaccaceae (e.g., Rohwer in Kubitzki, Fam. Gen. Fl. Pl. 2: 511, 514. 1993) or in a family of its own, Gisekiaceae (e.g., Gilbert, Kew Bull. 48: 343–356. 1993); one of us (Hartmann) favors either option. The mericarpic fruit separates the genus from Aizoaceae and Molluginaceae, from which it differs also by the presence of betalain and the absence of anthocyanin as pigments. No currently accepted plant family contains both anthocyanin and betalain producers.

Lu Dequan. 1996. Aizoaceae (GisekiaMollugo). In: Tang Changlin, ed., Fl. Reipubl. Popularis Sin. 26: 20–30.

  
1Carpels apparently free, fruit deeply (3-)5-lobed mericarps; seeds 1 per locule.1  Gisekia    吉粟草属
+Carpels connate, fruit a loculicidal capsule; seeds many per locule.(2)
   
2(1)Seeds with long filiform arils: strophioles; flowers mostly with staminodes.2  Glinus    星粟草属
+Seeds without filiform strophioles; flowers without staminodes.3  Mollugo    粟米草属
   
   Lower Taxon
  • Gisekia  Linnaeus  吉粟草属
  • Glinus  Linnaeus  星粟草属
  • Mollugo  Linnaeus  粟米草属