Bogoriella modesta is a species of corticolous (bark-dwelling) crustose lichen in the family Trypetheliaceae.[3] This widespread tropical lichen forms olive-coloured crusty patches on tree bark and produces small, solitary dark fruiting bodies that are among the smallest in its genus. It has an unusually broad distribution for a tropical lichen, being found in both Central America and East Asia.
Bogoriella modesta has an olive-coloured thallus that lacks visible prothallus lines. Its fruiting bodies (ascomata) are solitary, measuring 0.2–0.4mm across and 0.07–0.09mm tall (rarely up to 0.10mm), with walls 20–35micrometres (μm) thick. The asci are 63–67 by 17–20μm. The ascospores are olive-brown, warty in texture, and usually divided into two equal compartments, although the upper cell may be slightly larger. They are 19–22μm long (sometimes as small as 17.5μm or as long as 23μm) and 8.5–10μm wide (occasionally ranging from 8.0 to 10.5μm), with rounded ends. No asexual reproductive structures (pycnidia) have been observed. Both the thallus and ascomata are negative in standard chemical spot tests (UV and K), and thin-layer chromatography has not revealed any secondary metabolites.[4]
Distribution
Bogoriella modesta has a pantropical distribution, with records from Mexico and Costa Rica in Central America, as well as from South Korea and Japan in East Asia.[4]
↑ Hawksworth, D.L. (1985). "A redisposition of the species referred to the ascomycete genus Microthelia". Bulletin of the British Museum for Natural History. 14 (2): 43–181 [104].
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