This study is based on three terrestrial saprobic fungi associated with Aquilaria in Guangdong and Yunnan provinces in China. All isolated species matched with generic concepts of Melomastia . Detailed morphological characteristics and combined multigene phylogeny of LSU, SSU, and TEF revealed that the new isolates represent two new species ( Melomastia guangdongensis and M. yunnanensis ), and one new host and geographical record ( M. sinensis ). Melomastia guangdongensis is distinct from the phylogenetically closest species in having semi-immersed to immersed, globose to subglobose ascomata, and two strata of the peridium. Melomastia yunnanensis differs from the phylogenetically closest species in having immersed ascomata, conical ostiolar canals, and branched pseudoparaphyses. The discovery of these two new species and one new record collected expands the number of saprobic species associated with Aquilaria from 28 to 31. Descriptions, photo plates, and phylogenetic analyses of taxa are provided.

Tian-Ye Du

Samantha C. Karunarathna

Saowaluck Tibpromma

Kevin D. Hyde

Somrudee Nilthong

Ausana Mapook

Xiang-Fu Liu

Dong-Qin Dai

Chen Niu

Abdallah M. Elgorban

Ekachai Chukeatirote

Hao-Han Wang

MycoKeys

MYCOKEYS 是一本经过同行评审、开放获取、在线和印刷、快速制作的期刊，旨在支持真菌（包括地衣）系统学和生物学方面的思想和信息的自由交流。在 MYCOKEYS 上发表的所有论文都可以自由复制、下载、为读者免费印刷和分发。因此，鼓励作者将已发表论文的 PDF 文件张贴在其主页或其他地方，以加快分发速度。颜色没有限制，也没有收费。

MYCOKEYS is a peer-reviewed, open-access journal available in both online and print formats, aimed at facilitating the free exchange of ideas and information in the fields of fungal (including lichen) systematics and biology. All papers published in MYCOKEYS can be freely copied, downloaded, and printed for distribution to readers at no cost. Therefore, authors are encouraged to upload the PDF files of their published papers to their personal websites or other platforms to expedite dissemination. There are no restrictions on color usage, and no fees are charged.

MYCOKEYS 是一本经过同行评审的开放获取期刊，提供在线和印刷版，旨在促进真菌（包括地衣）系统学和生物学领域思想和信息的自由交流。所有在 MYCOKEYS 上发表的论文均可自由复制、下载，并可供读者免费印刷和分发。因此，我们鼓励作者将已发表论文的 PDF 文件上传到个人主页或其他平台，以加快传播速度。期刊不限制颜色使用，也不收取任何费用。

Category	Quartile
生物学	2
生物学, 真菌学	2

Melomastia (Dothideomycetes, Ascomycota) species associated with Chinese Aquilaria spp.

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