''Hypogymnia laxa'' is a species of
foliose lichen in the family
Parmeliaceae. Found in the Chinese
Himalayas, it was
described as a new species by
Bruce McCune
Bruce Pettit McCune (born 1952) is an American lichenologist, botanist, plant ecologist, and software developer for analysis of ecological data.
Biography
McCune grew up in Cincinnati. He completed his freshman year of college at Lawrence Univers ...
in 2003. 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 ...
specimen was collected from the
Jiaozi Snow Mountain in
Luquan County (
Yunnan), at an elevation of . Here it was found growing on the bark and wood of ''
Abies'', ''
Pinus'', and ''
Rhododendron
''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...
''. The lichen is characterized by a
thallus with
soredia, the presence of
physodalic acid in the
medulla, and rimmed holes on the lower surface. This latter feature distinguishes it from the
morphologically similar ''
Hypogymnia pseudophysodes'', which always has unrimmed holes.
References
laxa
Lichen species
Lichens of China
Lichens described in 2003
Taxa named by Bruce McCune
{{Parmeliaceae-stub