Tubaria
Tubaria confragosa (California) The taxonomy of this genus doesn't seem to be completely settled yet and the concept of this species varies significantly from source to source. It is a distinct, larger Tubaria than the hiemalis/furfuracea group. The spores are larger too, the upper limit reaching up to 10.3µ.
Tubaria furfuracea
(California) Abundant in wet weather on rotting material.
Typical cheilocystidia:
Mainly cylindrical, occasionally subcapitate.
Tubaria hiemalis
(California) I put that name rather reluctantly
because I do not see evidence that the genus Tubaria has been investigated well in California. Still, the
strongly capitate cheilocystidia follows the T. hiemalis concept.
Cheilocystidia:
Strongly capitate!