Galium ovitdaghense sp nov (Rubiaceae: Rubioideae) from northeastern Turkey

Abstract

A new species of Galium section Orientigalium, G. ovitdaghense Dakn, is described and illustrated from Rize province, northeast Anatolia. The new species is similar to three Turkish Galium species, namely G. basalticum, G. membranaceum and G. shepardii. However, it is distinguished from these species by its oblanceolate-oblong leaves with minutely antrorsely papillate-denticulate margins, pinkish, infundibular corollas, ovate-oblong, long-acuminate corolla lobes and broadly reniform, subpapillate mericarps.