Cupressus lawsoniana A.Murray bis = Chamaecyparis lawsoniana (A.Murray bis) Parl.
English:
lawsonianus,-a,-um;

https://archive.org/stream/#page/292/mode/2up
homotypic synonyms:
Chamaecyparis lawsoniana (A.Murray bis) Parl.; Retinispora lawsoniana (A.Murray bis) A.V.Bobrov & Melikyan;

protologue: Edinburgh New Philos. J. n.s., 1: 292 (1855)

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