Citrus mangshanensis
[6][7] Unlike hybrid citrus varieties, C. mangshanensis does not exhibit genetic admixture and is considered a unique species within the genus.[7][8] It is endemic to southern Hunan, China, particularly in the Mangshan region of the Nanling mountain range.[7][8] The fruit of C. mangshanensis is inedible but contains high amounts of aromatic volatile compounds, including cis- and trans-linalool oxides and β-myrcene, which contribute to its unique balsamic and floral aroma.[9][10] Research has shown that C. mangshanensis pollen can produce a Xenia effect, influencing the aroma profile of other citrus fruits, such as pomelo.Pollination with C. mangshanensis pollen increases the levels of linalool oxides in fruit juice sacs, enhancing aroma quality.