作 者 ：ZHAO Zuo-Cheng, ZHOU Ming-De, LUO Ding-Ze, SHEN Guo-Kun, HOU Xin
期 刊 ：植物分类学报 2000年 5期
Keywords:Fagopyrum, Fruit, Macromorphology, Micromorphology,
Abstract:
Macro- and micro-morphological characteristics of fruits in eight species and one variety
of the genus Fagopyrum Mill. (Polygonaceae) from China were observed under stereoscope and
scanning electron microscope(SEM). Based on the results, the fruits of the species studied are di-
vided into type Ⅰ , Ⅱ and Ⅲ. The fruits of type Ⅰ are triangular-pyramidal; their surface are rugo-
sely reticulate, neither smooth nor shiny. Two species, F. tataricum and F. dibotrys have this
fruit type. Those of type Ⅱ are ovoid-triangular-pyramidal; their surface are smooth and shiny, and
striately reticulate. Three species, F. esculentum, F. statice and F. lineare, have this fruit
type. In type Ⅲ, the fruits are ovoid-triangular-pyramidal; their surface are smooth and shiny, and
covered with many warty grains and sparsely finely striate. F. urophyllum, F. gracilipes, F. lep-
topodum var. leptopodum, and F. leptopodum var. grossii have this fruit type. Judging from the
morphological characteristics of fruits, F. dibotrys might be more closely related to F. tataricum
than to F. esculentum.