Synonym: Asterella californica (Hampe) Underw., Bot. Gaz. 20(2): 60. 1895.
[Note: Most records currently under this name.] Pronunciation: Ca-las-te-rél-la ca-li-fór-ni-ca
Etymology: California + Gr.aster, star + -ella, diminutive (so "little star") + californica, of Californica SDSU Collection with field images
Calasterella californica [Asterella californica]
Note thallus morphology, with dark margins, and lobed archegoniophores; compare with Asterellopsis palmeri.
Images courtesy of M.G.Simpson, iNat Observation 156511909