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| Sirindhornea siamensis in Lueangjaroenkit, Doungsin, Jangsantear, Boonwanno, Sintawarak, Sahathippayakul, Supapongsri, Sakolrak, Himaman et Sutthinon, 2025. เห็ดก้อนอำพันเจ้าฟ้า | DOI: doi.org/10.58837/tnh.25.8.267496 |
Abstract
This study investigates sequestrate boletes from southern Thailand and presents a morphologically distinctive specimen with a strong cantaloupe-like odor. Detailed morphological and molecular phylogenetic analyses, utilizing the internal transcribed spacer (ITS), large subunit ribosomal RNA (LSU) and RNA polymerase II second largest subunit (RPB2) genes were performed to determine its taxonomic position. Nonetheless, the new sequestrate bolete exhibited a distinctive morphological features, including a scaly peridium, a characteristic cantaloupe-like odor at maturity. Together with molecular evidence, these characteristics clearly distinguish it from other sequestrate boletoid (Chamonixia, Durianella, Octaviania, Rossbeevera, and Turmalinea). These findings support the recognition of a novel genus within the subfamily Leccinoideae. Therefore, we propose a new genus and new species, Sirindhornea siamensis, for this sequestrate bolete species.
Keywords: fungal taxonomy, new genus, Leccinoideae, sequestrate boletes
Sirindhornea gen. nov.
เห็ดก้อนอำพันเจ้าฟ้า
Sirindhornea siamensis sp. nov.
Etymology.–The species epithet siamensis is named from the former name of Thailand, refers to the geographical origin of this new species.
Classification.–Leccinoideae, Boletaceae, Boletales, Agaricomycetes, Agaricomycotina, Basidiomycota
Piyangkun Lueangjaroenkit, Nootcharee Doungsin, Panrada Jangsantear; Tanyaporn Boonwanno; Phanin Sintawarak, Ananya Sahathippayakul, Vassana Supapongsri, Baramee Sakolrak, Winanda Himaman, Pornsawan Sutthinon. 2025. Sirindhornea siamensis, A New Sequestrate Boletoid Genus of Boletaceae from Thailand. Tropical Natural History. Suppl. 8; 481-492. DOI: doi.org/10.58837/tnh.25.8.267496