Hypholoma

Fungi of the genus Hypholoma are quite well known due to the commonness of sulphur tuft (Hypholoma fasciculare) on stumps in temperate woodlands. Species in this genus are easily recognizable because the dark spores create a distinctive greenish effect on the yellow cap underside. Hypholoma means 'mushrooms with threads' because of the thread-like veil that connects the cap to the stem when young and for the bundles of rhizomorphs which radiate outwards from the stem base. Other well-known species are H. capnoides and H. lateritium. Sometimes Hypholoma has not been considered a genus in its own right, but it has been grouped together with Stropharia and Psilocybe under the name of Geophila, Naematoloma, or Nematoloma.