lacrimal sac: either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
vesicle: a small anatomically normal sac or bladderlike structure (especially one containing fluid)
cortinarius: the largest genus in the Agaricales; agarics having rusty spores and prominent cortinae (cobwebby partial veils)