Cryptococcomyces juniperi (P. Karst.) Lan Zhuo & C. L. Hou, 2025

Zhuo, Lan, Wang, Hai-Qi, Zhang, Peng, Sui, Xiao-Nan, Guo, Mei-Jun, Wang, Shi-Juan & Hou, Cheng-Lin, 2025, New genera and species of coniferous twig-inhabiting Rhytismatales from China, IMA Fungus 16, pp. e 138790-e 138790 : e138790-

Cryptococcomyces juniperi (P. Karst.) Lan Zhuo & C. L. Hou comb. nov.

Coccomyces juniperi P. Karst. , Bidr. Känn. Finl. Nat. Folk 19: 254. 1871. Basionym.

= Colpoma juniperi (P. Karst.) Dennis , Kew Bull. [12] (3): 401. 1958.

Type.

Finland, on bark of Juniperus communis L. ( Cupressaceae ), Fennia et Lapponia , collected throughout the year (exact date unknown), P. Karsten (A holotype needs to be designated) .

Notes.

Phylogenetically, a non-type sequence of Cry. juniperi clusters with other species of Cryptococcomyces , which also occur on Juniperus spp. Dennis (1958) transferred Coccomyces juniperi to the genus Colpoma based on its slender paraphyses with spirally coiled tips ( Dennis 1958). However, species of the genus Colpoma usually have elongated and curved ascomata with a single longitudinal opening slit, whereas Cryptococcomyces juniperi has subglobose ascomata with 3 to 6 triangular flaps ( Dennis 1958; Johnston 1991; Lin et al. 2012). Therefore, based on their phylogenetic position, morphological similarities, and host relationship, Cry. juniperi is proposed to belong to the genus Cryptococcomyces .