SEM observations on seeds of some herbaceous Phyllanthus L. species (Phyllanthaceae)

Revista Brasileira de Farmacognosia

Mentz, Lilian A.¹  UFRGS, Porto Alegre¹  Oliveira, Paulo L. de¹  Machado, Clarice A.¹  Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brasil¹ 

关键词: Phyllanthus;    Phyllanthaceae;    seed ornamentation;    scanning electron microscopy (SEM).;   

DOI  :  10.1590/S0102-695X2006000100008

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

Six medicinal herbaceous Phyllanthus L. (Phyllanthaceae) species, P. tenellus Roxb., P. niruri L., P. stipulatus (Raf.) Webster, P. urinaria L., P. caroliniensis Walt., and P. amarus Schum. & Thonn. are difficult to distinguish. In order to solve this problem, the ornamentation of the seed surfaces was analyzed by SEM (scanning electron microscopy). Differences between lateral, dorsal and ventral surfaces were observed. The seeds were cut into sections at different angles, exposing testa sculptures. Three types of surface ornamentation patterns were observed and they showed to be avaluable diagnostic.

【 授权许可】

Unknown