Habitus of new species of Trypetheliaceae (holotypes). A, Astrothelium mediocrassum; B, A. megatropicum; C, A. megochroleucum; D, A. neoinspersum; E, A. perspersum; F, A. philippinense. Scales: A–F = 1 mm. In colour online.  

Contexts in source publication

Context 1

... Fig. 4A) Thallus corticate, smooth, somewhat shiny, continuous, covering areas ≤ 12 cm diam., ≤ 0·3 mm thick, pale green, not surrounded by prothallus, not inducing gall formation of the host ...

Context 2

... Fig. 4C) Thallus corticate, smooth, somewhat shiny, continuous, covering areas ≤4 cm diam., under 0·1 mm thick, ochraceous with whitish pruina, surrounded by a black prothallus line c. 0·1 mm wide, inducing gall formation of the host bark, which splits open and forms a callus under the ...

Context 3

... This species has the appearance of Astrothelium ochroleucoides Aptroot & M. Cáceres, from which it differs, for example, by the long 3-septate ascospores. It has the longest ascospores among Astrothelium species with 3-septate ascospores and lichexanthone in the thallus and pseudostromata. ( Fig. 4D) Thallus corticate, smooth, somewhat shiny, continuous, covering areas ≤ 5 cm diam., c. 0·2 mm thick, olive-green, not sur- rounded by a prothallus, not inducing gall formation of the host ...

Context 4

... Similar to A. aenascens, but with bright yellow pseudostromata. Also similar to A. inspersaeneum E. L. Lima et al., which has at least some orange pigmentation on the thallus. ( Fig. 4E) Thallus corticate, smooth, somewhat shiny, continuous, covering areas ≤4 cm diam., ≤0·1 mm thick, pale greenish grey, surrounded by a black prothallus line c. 0·1 mm wide, not inducing gall formation of the host ...

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... Fig. 4F) Thallus corticate, smooth, shiny, covering areas ≤7 cm diam., c. 0·2 mm thick, pale ochraceous green, surrounded by a brown to black prothallus line c. 0·4 mm wide, indu- cing gall formation of the host bark in the form of numerous c. 1-2 mm wide hemisperical ...