sulcate in English
Dorsal valve only slightly sulcate , with very shallow sulcus originating in the umbonal area.
Use "sulcate" in a sentence
1. Catadromously arranged, or sometimes anadromous at base and catadromous distally; stipe often not articulate but sometimes articu- late at base, with 3 or more vascular bundles arranged in a semicircle or circle, scaly, sulcate adaxially, not hairy or sometimes hairy;