Illustrated Companion to the Latin Dictionary/Viridarius
This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich.
VIRIDA'RIUS. A pleasure-gardener. (Inscript. ap. Grut. 602. 2.) There does not appear to be any positive distinction between the occupation of the viridarius and the topiarius.