New orchids in the flora of Vietnam Ⅴ (Orchidaceae, Aeridinae)
Further insights into the Stellaria media aggregate (Caryophyllaceae, Alsinoideae, Alsineae) in Africa: first reports of S. ruderalis in North Africa and S. cupaniana in Tunisia, with nomenclatural notes on the name Alsine cupaniana
Notes on the distribution of Acrolejeunea sandvicensis (Gottsche) Steph., a liverwort species disjunctive between East Asia and Hawaii