By far the largest group of living gymnosperms are the conifers ( pines , cypresses , and relatives ) , followed by cycads , gnetophytes ( `` Gnetum '' , `` Ephedra '' and `` Welwitschia '' ) , and `` Ginkgo '' ( a single living species ) .
By far the largest group of living gymnosperms are the conifers ( pines , cypresses , and relatives ) , followed by cycads , Gnetales ( `` Gnetum '' , `` Ephedra '' and `` Welwitschia '' ) , and `` Ginkgo '' ( a single living species ) .