Graphidaceae of Central French Guiana

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Graphis sp. Britton and Britton 7824
Harris Puerto Rico keys
H 25312c

Thallus thin, not continuous, even smooth, thinly corticate, glaucescent greenish with very narrow brown border or none, and thallus thinning to sparse patches with bark showing between, P-, K-. Ascomata emergent to subsessile, short, straight to once curved, naked above with low thalline margin, .2x1.2 mm, exciple carbonized, dimidiate, not closed below, disk not exposed, entire. Spores 12-14 locular, 12x42-50µ, mostly less than 50µ.