Two new species of Carex (Cyperaceae), C. satsumasendaica Okih.Yano, Katsuy. & W.Ohnishi and C. shimizui Okih.Yano, Katsuy., W.Ohnishi & T.Hoshino, are described from Kagoshima Prefecture, Kyushu, Japan. Carex satsumasendaica resembles C. sociata and C. uber, but mainly differs from C. sociata by having pale brown basal bracts, spikes solitary at each node and subdensely many-flowered, and from C. uber by having setaceous bracts, spikes not dense on upper part of culms, narrowly cylindrical pistillate spikes and short awns of pistillate scales. Carex shimizui resembles C. conica s.l., including var. conica, var. pallescens, and var. scabrocaudata, and C. oshimensis, but C. shimizui differs from C. conica s.l. by having long-beaked perigynia and scales with long awns, and from C. oshimensis by having perigynia with a long beak and narrower spikes.
Research papers (academic journals)
