foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.11 (2008)              | Family List  Buxaceae  PDF     |  eFloras.org Link Font:+ Big | - Small
   23. Buxaceae  Dumortier
黄杨科   huang yang ke
  
Authors:Min Tianlu (闵天禄 Ming Tien-lu); Paul Br點kner

  

Shrubs, small trees, rarely subshrubs or perennial herbs, evergreen, monoecious or rarely dioecious. Leaves simple, alternate or opposite, exstipulate, margin entire or dentate, venation pinnate or triplinerved. Inflorescences axillary or terminal, racemose or densely spicate, bracteate. Flowers small, regular, unisexual. Male flowers: tepals 4-6 or rarely absent; stamens 4, 6-8, or numerous; central pistillode present or lacking. Female flowers: tepals 5 or 6 or several; carpels 2 or 3; ovary superior, 2- or 3-locular; styles 2 or 3, free, persistent; stigma broadly recurved; interstylar nectaries present or lacking; ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar; micropyle formed by inner integument or by both integuments. Fruit a loculicidal dry capsule or a fleshy berry. Seeds black, shining; endosperm fleshy; embryo erect; cotyledons thin or plump.

Four or five genera and ca. 70 species: Africa, America, Asia, Europe; three genera and 28 species (21 endemic) in China.

Based on recent molecular data, the South American genus Styloceras Kunth ex A. Jussieu is included within the Buxaceae, and the African Notobuxus Oliver is included within Buxus.

Cheng Mien. 1980. Buxaceae. In: Cheng Mien & Ming Tien lu, eds., Fl. Reipubl. Popularis Sin. 45(1): 16-60.

  
1Leaves opposite, margin entire, venation pinnate; female flower solitary, apical on inflorescence; fruit a loculicidal capsule.1  Buxus    黄杨属
+Leaves alternate, usually triplinerved; female flower in basal part of inflorescence; fruit a berry, ± fleshy(2)
   
2(1)Leaf margin entire; persistent style very short in fruit state, ca. 2 mm.2  Sarcococca    野扇花属
+Leaf margin apically dentate; persistent style prismatic, elongated in fruit state, 8-15 mm.3  Pachysandra    板凳果属
   
   Lower Taxon
  • Buxus  Linnaeus  黄杨属
  • Pachysandra  A. Michaux  板凳果属
  • Sarcococca  Lindley  野扇花属