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防城发现膝柄木的新分布点
宁世江; 邓泽龙; 蒋运生;
广西植物研究所
摘要:
膝柄木(Bhesa sinica Chang et S.Y.Liang)是1979年发现的一个新树种,为常绿乔木,具板根。仅见于广西合浦县南康镇近海边海拔50m的丘陵缓坡杂林中,唯独一株大树,树高13m,胸径60cm,很少开花结实,繁殖也比较困难,为稀有和濒危树种,已被列入我国国家级二级保护植物。 1990年,在防城各族自治县江平镇巫头村海拔5—8m的平坦沙地灌木林和红鳞蒲桃疏林中,我们再次发现了该种新的分布点。经初步调查统计,残存的植株共计有16株,植株大小悬殊,最小植株胸径16.0cm,高4.5m;一般植株胸径30.0cm,但高只有7.0m;残存在红鳞蒲桃疏林中的植株胸径41.0cm,高
关键词:  膝柄木  分布点  二级保护植物  濒危树种  红鳞蒲桃  南康镇  江平镇  乔木林  疏林  粘木  
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