Monograph of Lichen Genus Placopsis

Abstract

1. A review of the genus Neuropogon (Nees & Flot.) Nyl., with special reference to the Antarctic species.| 2. What is Lecidea pringlei Tuckerman?| 3. Lichens from East Greenland, collected by the Wager Expedition, 1935—36.| 4. A New Cephalodiate Lecidea from Japan| 5. A new species of Umbilicaria from the Antarctic [By Ed. Frey and I. Mackenzie Lamb]| 6. Lichenological notes from the British Museum Herbarium.— I.| 7. Lichenological notes from the British Museum Herbarium.— II.| 8. Lichenological notes from the British Museum Herbarium.— III.| 9. Lichenological notes from the British Museum Herbarium.— IV. Rhizocarpon Sect. Gatocarpon in the British Isles| 10. Lichenological notes from the British Museum Herbarium.— V.| 11. Lichens from Bahrein Island