Two genera Elatostema and Pellionia belong to Ur-ticaceae,one of them Elatostema consists of at least340 species and the other one Pellionia has ca.60 spe-cies or more in the world(Wang,1995a;Linet al.,2003a;Wei et al.,2017).The two genera havesimilar habitat and even similar morphology,but can bedistinguished by there different male and female inflo-rescences(Wang,1995a,b,2017;Lin et al.,2003a,b).25 of Elatostema and 26 of Pellionia have been re-corded in Vietnam(Ho,2003;Lin et a......(论文页数是：3页) ，越语论文网站，越语毕业论文 |
