. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. m Fig. 3. Perithecial structure in Antarctic Pyrenocarp lichens. (Somewhat diagrammatic.) a, Verrucaria Racovitzae. g, Verrucaria psychrophila. k, Staurothele gelida (with well b, Verrucaria ceuthocarpa. h, Verrucaria microspora (f. frisiaca). developed thallus). c, Verrucaria mucosa. i, Verrucaria elaeoplaca. /, Verrucaria dispartita. d, Verrucaria tesselatula. j, Staurothele gelida (with poorly m, Mastodia tesselata. e, Verrucaria serpuloides. developed thallus). w, Dermatocarpon lachneum. f,
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. m Fig. 3. Perithecial structure in Antarctic Pyrenocarp lichens. (Somewhat diagrammatic.) a, Verrucaria Racovitzae. g, Verrucaria psychrophila. k, Staurothele gelida (with well b, Verrucaria ceuthocarpa. h, Verrucaria microspora (f. frisiaca). developed thallus). c, Verrucaria mucosa. i, Verrucaria elaeoplaca. /, Verrucaria dispartita. d, Verrucaria tesselatula. j, Staurothele gelida (with poorly m, Mastodia tesselata. e, Verrucaria serpuloides. developed thallus). w, Dermatocarpon lachneum. f, Verrucaria famelica. 0, Dermatocarpon intestiniforme. p, Microglaena antarctica. This species comes very near V. microspora {i. frisiaca), differing only in the minutely scabrid, often somewhat cracked thallus, usually slightly roughened perithecia and the somewhat darker excipular wall. Its habitat ecology, however, is different, its occurrence being in the spray zone and not in the intertidal belt, as is the case with V. microspora. No. 2564 pr. p. was associated with Caloplaca cirro- chrooides (Vain.) Zahlbr., in the upper part of the spray zone. In our specimens the thallus forms scattered spots or effuse, ± continuous patches of small extent, it is sooty or olivaceous-blackish, about o-i mm. thick, continuous or with small sporadic disconnected cracks or (in no. 2564/)r. p., which grew. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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