【摘要】 文章报道了莲花卷瓣兰（Bulbophyllum hirundinis）的地理新分布，研究它在当前气候下的潜在适生区，为该物种的研究与资源保护提供了基础数据。测量并收集新发现植株的形态特征数据、生境数据等。基于当前气候环境数据与收集到的莲花卷瓣兰地理分布数据，利用最大熵模型（MaxEnt），分析影响莲花卷瓣兰分布的主导因子，并对该物种在中国的适宜性分布区进行预测。经比对，确定新发现的植株是莲花卷瓣兰。MaxEnt模型受试者工作曲线（ROC）中的曲线下面积（AUC）值为0.939，说明该模型具有较高的精度，能较好地预测莲花卷瓣兰的潜在适生区。影响莲花卷瓣兰分布的主导因子为年均气温、冷季降雨量、年温度变化范围、年平均日较差、雨期降雨量。当前气候下，莲花卷瓣兰适宜性分布区主要位于南部过渡带以南地区，总面积为216.73×10~4km~2，占全国总面积的22.53%。年均气温是影响莲花卷瓣兰分布的最主要的气候因子，贡献度为56.1%。莲花卷瓣兰潜在的最适宜分布区在广东、广西、海南、台湾等地。该预测结果可以为莲花卷瓣兰的保护提供参考。更多还原

【Abstract】 This article reports the new geographical distribution of Bulbophyllum hirundinis,studies its potential habitat in the current climate,and provides basic data for the research and resource conservation of this species We measured and collected the morphological characteristics and habitat data of the newly discovered plants.Based on the current climate and environmental data and the collected geographical distribution data of Bulbophyllum hirundinis,we used the Maximum Entropy Model(MaxEnt)to analyze the dominant factors affecting the distribution of Bulbophyllum hirundinis and predict the suitable distribution area of this species in China.By comparison,we confirmed that the newly discovered plants were Bulbophyllum hirundinis.The Area Under the Curve (AUC) value in the Receiver Operating Curve (ROC) of the MaxEnt model is 0.939,indicating that the model has high accuracy and can predict the potential habitat of Bulbophyllum hirundinis well.The dominant factors affecting the distribution of Bulbophyllum hirundinis are average annual temperature,rainfall during the cold period,annual temperature range,average annual daily temperature range,and rainfall during the rainy period.In the current climate,the suitable distribution area of Bulbophyllum hirundinis is mainly located to the south of the southern transition zone,with a total area of 216.73×10~4km~2,accounting for22.53%of the total area of the country.The average annual temperature is the most important climatic factor affecting the distribution of Bulbophyllum hirundinis,with a contribution of 56.1%.The most suitable distribution area of Bulbophyllum hirundinis is in Guangdong,Guangxi,Hainan,Taiwan and so on.The prediction results can provide reference for the conservation of Bulbophyllum hirundinis.更多还原