寧夏枸杞(Lycium barbarum)為日用枸杞的兩種物種的其中一種，兩者之果實經常作為傳統中醫藥材使用。寄生真菌—Pseudocercospora atromarginalis 迄今為止只有在枸杞(Lycium chinense)和其他茄科植物(Solanaceae)上發現，此次於寧夏枸杞上發現之紀錄，則為一個新宿主之紀錄。基於形態學和比對the translation elongation factor 1 alpha(TEF) 基因序列進行真菌物種的鑑定。由於茄科植物上假尾孢菌屬(Pseudocercospora)真菌的資料過於稀少，目前已知茄科植物上僅約有25 種假尾孢菌屬真菌之紀錄，因此不能進行合理的分類學修訂。台灣藥用植物之潛在病原菌的相關資訊很稀少，但是這方面的病原菌資料對於建立藥用植物在國內的永續生產和降低進口依賴是不可或缺的。

Lycium barbarum is one of the two species of “gouqi” (枸杞) whose fruits are used in Traditional Chinese Medicine. A parasitic fungus, Pseudocercospora atromarginalis, is hitherto only once recorded from the other medicinal species of Lycium, Lycium chinense, and on further species of Solanaceae. Lycium barbarum is recorded here as new host species of Ps. atromarginalis. The identification is based on morphology and identities of sequences of the gene coding for the translation elongation factor 1 alpha (TEF). Too few data exist for the ca. 25 named Pseudocercospora species on Solanaceae to make a sound taxonomic revision. Knowledge of the potential pathogens on medicinal plants in Taiwan is scarce but indispensable for establishing domestic sustainable production and reducing the dependence from imports.