Potamogeton distinctus A. Benn.

Ito, Yu, Tanaka, Norio, Pooma, Rachun & Tanaka, Nobuyuki, 2014, DNA barcoding reveals a new record of Potamogetondistinctus (Potamogetonaceae) and its natural hybrids, Potamogetondistinctus x Potamogetonnodosus and Potamogetondistinctus x Potamogetonwrightii (Potamogetonxmalainoides) from Myanmar, Biodiversity Data Journal 2, pp. 1073-1073 : 1073

Potamogeton distinctus A. Benn.

Materials

Type status: Other material. Occurrence: recordedBy: Y. Ito; Location: country: Myanmar; stateProvince: Shan; verbatimLocality: Yae Aye Kan; Kalaw; verbatimLatitude: 20 35 41 N; verbatimLongitude: 96 31 46 E; Event: eventDate: 26 Nov 2008; Record Level: collectionID: N. Tanaka & al. 080061; institutionCode: MBK, RAF, TI

Type status: Other material. Occurrence: recordedBy: Y. Ito; Location: country: Myanmar; stateProvince: Shan; verbatimLocality: Nyaun Shwe; Inlay Lake; verbatimLatitude: 20 32 02 N; verbatimLongitude: 96 53 53 E; Event: eventDate: 3 Dec 2008; Record Level: collectionID: N. Tanaka & al. 080657; institutionCode: MBK, RAF, TI

Distribution

?Bhutan, China (nationwide), Korea, Japan, Myanmar, Nepal,?Philippines, Thailand,?Vietnam (modified from Wiegleb 1990).

Taxon discussion

Potamogeton distinctus shows a wide range of phenotypic plasticity, especially in leaf morphology. It seems to be that the two-carpellate flower, the diagnostic character of the species, is essential for precise morphological identification in the field; identification with vegetative morphology alone is to be avoided (see Discussion).