color of L. atrovirens may be due to infection by an imperfect fungus on L. lubrica, while David Arora proposed that the two species may intergrade. In 2004, results of phylogenetic analysis suggested that L. lubrica, L. atrovirens and L. viscosa, while morphologically well-defined, were not monophyletic. L. lubrica specimens could be split into at least two different groups, one of which also contained specimens of L. viscosa. These groups could be differentiated morphologically by the colour of the stalk when dried. The most basal was shown to be L. atrovirens. Description Leotia lubrica produces fruit bodies which range from in height. Each body has a single fertile "head" measuring across, which is an olive-greenish ochre and gelatinous. To the touch, the surface of the head can be smooth, clammy or slimey. While in shape it is convex, the head is made up of irregular lobes and undulations, and the edge is rolled inward. The underside is paler in colour than the upper surface, and smooth. The head is attached to a central stalk, which ranges from and 3–10 mm wide, though thinner toward the substrate. The stalk is typically cylindrical, but can be flattened, and occasionally has furrows. The colour is similar to that of the head, though more yellow, and the surface is covered in very small granules of a greenish colour. The flesh is gelatinous in the head, while the stalk is mostly hollow, but it can be filled with gel. Microscopic features L. lubrica spores are borne in asci measuring around 150 by 10–12 micrometres (μm). They are club-shaped, and each ascus typically bears eight spores. The asci are inoperculate, meaning that they lack a "lid" and must split to release their spores. The elongated ascospores themselves measure 20 to 25 by 5 to 6 μm, and are subfusiform, that is, they taper slightly at each end. The surface is smooth, and they can be curved, and the spores typically contain four small drops of oil. The mature spores are septate; that is, they are divided by several septa throughout their length, with 5 to 7 partitions typical, and hyaline. The threadlike, colourless paraphyses measure 105 to 124 by 1.8 to 2.8 μm. Similar species L. lubrica fruit bodies are similar to those of Cudonia confusa, commonly known as the cinnamon jellybaby. The species can be differentiated by the fact that L. lubrica fruit bodies are