''Vainionora americana'' is a species of
crustose lichen in the family
Lecanoraceae that is found in the United States. It was
described as a species new to science in 2004 by lichenologists
Klaus Kalb
Klaus Kalb (born 1942) is a German lichenologist and an authority on tropical lichens.
Biography
Klaus Kalb was born in Nuremberg in 1942 and grew up in southern Bavaria. From 1960 to 1965 he studied biology, chemistry, and geography at t ...
, Tor Tønsberg, and
John Alan Elix. The
type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* Ty ...
was collected by Tønsberg from the southern
Appalachian Mountains of
North Carolina, where it was found growing on the bark of a
maple tree.
It was later recorded in
Alabama.
''Vainionora americana'' has a crustose
thallus that is greenish-gray in color, and
soralia
Soredia are common reproductive structures of lichens. Lichens reproduce asexually by employing simple fragmentation and production of soredia and isidia. Soredia are powdery propagules composed of fungal hyphae wrapped around cyanobacteria o ...
that are relatively large and convex. It produces
atranorin and two
xanthone
Xanthone is an organic compound with the molecular formula O 6H4CO. It is a white solid.
In 1939, xanthone was introduced as an insecticide and it currently finds uses as Insecticide, ovicide for codling moth eggs and as a larvicide. Xanthone ...
s as
secondary metabolites.
References
Lecanoraceae
Lichen species
Lichens of the Southeastern United States
Lichens described in 2004
Taxa named by Klaus Kalb
Taxa named by John Alan Elix
Fungi without expected TNC conservation status
{{Lecanorales-stub