Plagiochila columbiana   (A. Evans)


 
back
 
Columbia Liverwort
(Plagiochila columbiana)

 
syn. -

 
distribution:

USA: Indiana (?), North Carolina, Virginia (?), Washington D.C.

 
local name: -

 
size: (?)

extinction date: (?)

 
The genus Plagiochila contains about 1200 known species and therefore is the largest, but also one of the most complex, of the liverwort genera.

~~~~~~~~~~~~~~~~~~~~~

The Columbia Liverwort was found once in Washington D.C. as well as five times in North Carolina, where the moss was growing on boulders, which where located near streams and which were regularly inundated.

The species is said to have occured in Virginia as well.

~~~~~~~~~~~~~~~~~~~~~

Two herbarium specimens in the herbarium of the New York Botanical Garden, which obvousily can be referred to that species and which date from the year 1937, however are labelled with the localities Parke County / Indiana resp. Rerry County / Indiana.

~~~~~~~~~~~~~~~~~~~~~

The taxonomic status of this species is not absolutely certain cleared up and all efforts, to relocate the species, have failed up to now.

 
left:

Columbia Liverwort (Plagiochila columbiana)


Depiction from 'Alexander W. Evans: Notes on the North American species of Plagiochila. Botanical Gazette. 21(4): 185-194 (1896)'

http://www.biodiversitylibrary.org
 
left:

Columbia Liverwort (Plagiochila columbiana), enlarged twig


Depiction from 'Alexander W. Evans: Notes on the North American species of Plagiochila. Botanical Gazette. 21(4): 185-194 (1896)'

http://www.biodiversitylibrary.org

 
Referenzen:

- Rudolf M. Schuster: A Monograph of the Nearctic Plagiochilaceae. Part III. Sectio Contiguae to Conclusion. American Midland Naturalist 63: 1130 (1960)