Achene Morphology of Polygonum s.l. (Polygonaceae) in Thailand
نویسندگان
چکیده
– The achene morphology of 20 taxa in five sections of Polygonum s.l. from Thailand was studied and compared in detail using stereoscopic light and scanning electron microscopy. The achene of all Thai taxa is typically lenticular or triangular in shape. Three different morphological types are described according to the features of the achene surface; smooth-undulate, a star-like form and reticulate-papillae. Achene morphology of each type is described, compared, illustrated and discussed according to its taxonomic implications.
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