摘要
运用植物系统发育与进化意义上的性状极性比较分析和生物地理学方法探讨了贵州特有植物小黄花茶(CamellialuteofloraY .K .Li)的物种起源与狭限分布问题。小黄花茶喜温喜湿 ,苞被未起分化且数目较多 ,是山茶属中一个较原始的类群 ,它与短柱茶组 (Sect .ParacamelliaChang)和金花茶组 (Sect .ChrysanthaChang)植物具有某些相似表征性状 ,但进化发育的形态结构却有较大差异 ,隶属于山茶亚属下一较原始的独立组—小黄花茶组 (Subgen .Camellia ,Sect .LuteofloraChang)是比较恰当的。根据物种形成原理结合小黄花茶生境与狭限分布的生物地理学特征分析 ,可以推测小黄花茶的物种起源于异域物种形成中的分替 (vicariance ,allopatriespe ciation)型式 。
Camellia luteoflora Y.K.Li is suitable to grow in higher temperatures and warmer zone (the annual average temperature and humidity differentiate 15～20℃ and 68%～80%). The bud amount is more and not divided, so that it is inferior to evolution primitive species. We have analysed properties of Camellia luteoflora Y. K. Li, and compared it with Sect. Paracamellia Chang and Sect. Chrysantha Chang.The result shows some resemble properties. But the evolution development degree and shape properties of the former are different from the the latter. Together with the ecological environmental condition and the geographical distribution, which suggests Camellia luteoflora Y. K. Li is an endemic species which is distributed in very narrow zone, and originated from vicariance, allopatrie speciation.
出处
《贵州师范大学学报（自然科学版）》
CAS
2002年第1期6-10,共5页
Journal of Guizhou Normal University：Natural Sciences
基金
贵州科学技术基金资助课题 (9730 15 )
