在广东省连州市星子镇寨背磊村石灰岩洞口发现国家I级重点保护野生植物报春苣苔Primulina tabacum的自然种群，洞外自然分布有国家II级重点保护植物金荞麦Fagopyrum dibotrys和野大豆Glycine soja。经调查，寨背磊岩洞口附近有野生维管植物107种，隶属59科96属。植物资源可分为14类，其中药用植物资源比例最大，占57.0%。寨背磊与邻近的上柏场洞口植物各具鲜明特色，建议将寨背磊报春苣苔自然分布的洞口范围纳入广东连州田心省级自然保护区管理。
The investigation of plant resources were carried out nearby a lime stone cave at Zhaibeilei, Lianzhou, Guangdong, where the key national protected species of grade I (Primulina tabacum) and II (Fagopyrum dibotrys and Glycine soja) grew naturally. There were 107 species of wild vascular plants belonging to 59 families and 96 genera nearby the cave of Zhaibeilei. The plant resources were classified to 14 groups, the medicinal plant resources had the maximum percentage of 57.0% to the total. The plant resources at Zhaibeilei and its nearby area Shangbaichang with Primulina tabacum distribution had own specific characteristics. It was proposed that the lime cave area at Zhaibeilei should be strictly protected as a part of the Tianxin Provincial Nature Reserve of Lianzhou, Guangdong, as well as a lime stone cave at Shangbaichang.
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