foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.13 (2007)              | Family List  Nyssaceae  PDF     |  eFloras.org Link Font:+ Big | - Small
   24. Nyssaceae  A. L. Jussieu ex Dumortier
蓝果树科   lan guo shu ke
  
Authors:Qin Haining (覃海宁); Chamlong Phengklai

  

Trees or shrubs, dioecious or polygamo-monoecious. Leaves alternate, simple, estipulate. Flowers 5-merous, ± regular, subtended by 1-5 bracts; male ones in heads, racemes, or umbels; female and hermaphroditic ones solitary or in 2-12-flowered heads. Calyx tube adnate to ovary in bisexual or female flowers; lobes small or obsolete. Petals usually 5-10 (or absent). Stamens in male flowers usually 10 or more in 2 ± distinct whorls around a nectariferous disk. Ovary inferior, 1-8-loculed, with 1 pendulous, apotropous ovule per locule. Fruit a drupe; each locule of stone opening at apical part by a ± triangular abaxial valve at germination. Seeds 1-5; embryo straight; endosperm copious.

Five genera and about 30 species: mostly in temperate regions of E Asia and E North America; three genera (two endemic) and ten species (eight endemic) in China.

Recent studies suggest that this family can alternatively be treated as part of the Cornaceae (Xiang et al., Amer. J. Bot. 85: 285-297. 1998).

Fang Wen-pei. 1983. Nyssaceae. In: Fang Wen-pei & Chang Che-yung, eds., Fl. Reipubl. Popularis Sin. 52(2): 144-159.

  
1Fruit samaralike, clustered in globose heads.1  Camptotheca    喜树属
+Fruit a drupe, solitary or several in a cluster(2)
   
2(1)Drupe 3-4 cm, 1.5-2 cm in diam., usually solitary; ovary 6-10-loculed; bracts white, 7-16 × 3-5 cm, larger one pendulous.2  Davidia    珙桐属
+Drupe to 2 cm, to 1 cm in diam., usually several in a cluster; ovary 1- or 2-loculed; bracts yellowish or greenish, smaller than above.3  Nyssa    蓝果树属
   
   Lower Taxon
  • Camptotheca  Decaisne  喜树属
  • Davidia  Baillon  珙桐属
  • Nyssa  Linnaeus  蓝果树属