Dactylodendron pinicola (Sigler & Yamaoka) Rodr.-Andr., Cano et Stchigel, comb. nov.
MycoBank number: MB 827859; Index Fungorum number: IF 827859; Facesoffungi number: FoF;
Basionym: Arthrographis pinicola Sigler & Yamaoka, Canadian Journal of Microbiology 36: 78 (1990) [MycoBank MB 126499].
Description: Hyphae: septate and hyaline, (0.5–) 0.8–2.5 µm wide, bearing narrow conidiophores which branch repeatedly to form floccose conidiomata. The fertile branches are initially sparsely septate and of uniformly narrow diameter, but, as arthroconidial development begins, the apical region broadens and septation occurs in basipetal sequence to form many small cells. Arthroconidia secede by schizolysis, often remaining connected in chains of 3 to 4, which then undergo further schizolysis. There are no disjunctors or separating cells. Mature arthroconidia are smooth, hyaline, tan in mass, cylindrical, but often broader than long, 1.5–4.0 × 1.5–2.5 µm wide. Teleomorph was not observed. No yeast stage was observed.
Notes: The habitat reported for such fungus is wood of Pinus contorta var. latifolia, especially in galleries and adult beetles of Ips latidens, and from galleries of Dendroctonus ponderosae in Alberta, Canada.