Leiosporoceros

Taxobox
name = "Leiosporoceros dussii"


image_width = 240px
image_caption =
regnum = Plantae
divisio = Anthocerotophyta
classis = Leiosporocerotopsida
classis_authority = Stotler & Crand.-Stotl. "emend" Duff
ordo = Leiosporocerotales
ordo_authority = Hässelcite journal | last = Hässel de Menéndez | first = Gabriela G. | year = 1988 | title = A proposal for a new classification of the genera within the Anthocerotophyta | journal = Journal of the Hattori Botanical Laboratory | volume=64 | pages=71–86 ]
familia = Leiosporocerotaceae
familia_authority = Hässelcite journal | last = Hässel de Menéndez | first = Gabriela G. | year = 1986 | title = "Leiosporoceros" Hässel n. gen. and Leiosporocerotaceae n. fam. of Anthocerotopsida | journal = Journal of Bryology | volume=14 | pages=255–259 ]
genus = "Leiosporoceros"
genus_authority = Hässel
species = "L. dussii"
binomial = "Leiosporoceros dussii"
binomial_authority = (Steph.) Hässel
synonyms =
* "Anthoceros dussii" Steph.

"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." [cite journal | last = Duff | first = R. Joel | coauthors = Juan Carlos Villarreal, D. Christine Cargill, & Karen S. Renzaglia | year = 2007 | title = Progress and challenges toward a phylogeny and classification of the hornworts | journal = The Bryologist | volume=110 | issue=2 | pages=214–243 | doi = 10.1639/0007-2745(2007)110 [214:PACTDA] 2.0.CO;2 | doilabel = 10.1639/0007-2745(2007)110[214:PACTDA]2.0.CO;2 ] 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