Janetia euphorbiae
Janetia euphorbiae M.B. Ellis, More Dematiaceous Hyphomycetes (Kew): 33 (1976).
Index Fungorum number: IF 315966; Facesoffungi number: FoF 11158, Fig. 1
Description: see Ellis (1976); Goh and Hyde (1996); Videira et al. (2017).
Material considered: see Ellis (1976); Goh and Hyde (1996); Videira et al. (2017).
Fig. 1 Janetia curviapicis (BRIP 23223, holotype, re-drawn from Figs. 17–21 in Goh and Hyde 1996). a–c Conidiogenous cells with developing conidia. d Conidiogenous cells and developing conidia on hypha of another hyphomycete. e Conidia. Scale bars = 10 μm.
Importance and distribution
Species of Janetia are associated with leaf spots. There are 22 Janetia epithets in Index Fungorum (2022), but eight species have been transferred to other genera such as Bactrodesmiastrum, Linkosia, Pithomyces, Sporidesmium and Stanjehughesia. Janetia comprises 14 species known on a wide range of hosts including Acacia melanoxylon (Fabaceae), Alseuosmia macrophylla (Alseuosmiaceae), Coprosma tenuifolia (Rubiaceae), Gleichenia cunninghami (Gleicheniaceae), Hebe stricta var. egmontiana (Plantaginaceae), Leptospermum ericoides (Myrtaceae), Melicope simplex (Rutaceae), Myrsine australis (Myrsinaceae), Neomyrtus pedunculata (Myrtaceae), Neopanax arboreus (Araliaceae), Nothofagus sp. (Nothofagaceae), Shawia paniculata (Asteraceae) and Torreya californica (Taxaceae). Janetia has a wide distribution including Asia (China, Hong Kong, India, Japan, Taiwan), Australia, Caribbean (Cuba), Europe (Spain), New Zealand and South America (Brazil). An attempt to re-collect more taxa of Janetia must be done to provide sequence data for this genus.
References
Ellis MB. 1976 – More Dematiaceous Hyphomycetes. Commonwealth Mycological Institute, Kew, Surrey, England.
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