micromorphology of P. amarus, P. caroliniensis and P. urinaria were studied. they were were collected from faculties of Science and Engineering, Ubon Ratchathani University.
The results show seed surface is useful for keys construction. Keys to species, descriptions and photographs are provided.

key to species

ตารางที่  เปรียบเทียบลักษณะทางจุลสัณฐานวิทยาพืชสกุล Phyllanthus จากผิวของผลและเมล็ด

species capsule surface seed surface
P.amarus glabrous Longitudinal ribs – smooth and finger shape transversal rodlets
P. caroliniensis glabrous Longitudinal ribs – furrow and finger shape transversal rodlets
P. urinaria glabrous absence Longitudinal ribs  and smooth transversal

Seed surface by SEM

capsule surface by SEM

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith