Supriya Ghosh (Editor)

Leiosporoceros

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Kingdom  Plantae
Species  L. dussii
Rank  Genus
Division  Anthocerotophyta
Scientific name  Leiosporoceros dussii
Leiosporoceros wwwamjbotorgcontent935F1mediumgif

Class  Leiosporocerotopsida Stotler & Crand.-Stotl. emend Duff
Order  Leiosporocerotales Hässel
Family  Leiosporocerotaceae Hässel
Similar  Dendroceros, Phaeoceros, Notothylas, Anthocerotaceae, Anthocerotales

Leiosporoceros dussii is the only species in the hornwort genus Leiosporoceros. The species is placed in a separate family, order, and class for being "genetically and morphologically distinct from all other hornwort lineages." Cladistic analysis of genetic data supports a position at the very base of the hornwort clade. Physical characteristics that distinguish the group include unusually small spores that are monolete and unornamented. Additionally, there are unique strands of Nostoc (cyanobacteria) that grow inside the plant parallel with its direction of growth. Male plants have not yet been found.

References

Leiosporoceros Wikipedia