Photosyn the tic products in leafy liverworts and their taxonomic significance

Volemitol in Lophoeolea bidentata and Plagioehila spinulosa, volemitol and sedoheptulose in Bazzania trierenata and Lepidozia reptans, and mannitol in Barbilophozia floerkei and Seapania undulata are photosynthetic products in addition to sucrose and fructans. Polyols are not primary assimilatory products in Mylia taylori, Nardia sealaris, Saeeogyna vitieulosa or Porella platyphylla. It is concluded that neither Mylia nor Saeeogyna is closely related to the Plagiochilaceae/Lophocoleaceae complex and that chemotaxonomic investigation would aid the classification of the Jungermanniaceae s.l.