The species concept in diatoms: Evidence for morphologically distinct, sympatric gamodemes in four epipelic species

  title={The species concept in diatoms: Evidence for morphologically distinct, sympatric gamodemes in four epipelic species},
  author={David G. Mann},
  journal={Plant Systematics and Evolution},
  • D. Mann
  • Published 1 March 1989
  • Biology
  • Plant Systematics and Evolution
Reproductive isolation is demonstrated between morphologically distinct, sympatric demes of four epipelic diatom species inhabiting a small pond. The six demes ofSellaphora pupula, four of them allogamous, one probably autogamous, and one apparently asexual, differ morphologically with respect to size, shape, stria density and pattern. In the pond,Caloneis silicula, Cymatopleura solea, andNeidium ampliatum each contain two allogamous demes, differing principally in size. There are intrinsic… 

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