''Haematomma'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
crustose lichen
Crustose lichens are lichens that form a crust which strongly adheres to the Substrate (biology), substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichen ...
s established by
Abramo Bartolommeo Massalongo
Abramo Bartolommeo Massalongo (13 May 1824 – 25 May 1860) was an Italian paleobotanist and lichenologist. He was born in Tregnago in the Province of Verona and took a great interest in botany as a young man. Massalongo joined the faculty of med ...
in 1852.
It is the sole genus in the Haematommataceae,
a family
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every polyg ...
by
Josef Hafellner
Josef Hafellner (1951– ) is an Austrian mycologist and lichenologist. He was awarded the Acharius Medal in 2016 for his lifetime contributions to lichenology. Before his retirement, he was a professor at the Karl-Franzens-Universität in Graz ...
in 1984.
Commonly called bloodstain lichens,
the species assigned to this genus are widely distributed in
tropical
The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in
the Southern Hemisphere at S. The tropics are also referred to ...
and
temperate
In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout t ...
areas.
The genus name ''Haematomma'' means "bloody eye", a reference to the color of the lichen's
apothecia.
[
]
Species
, Species Fungorum accepts 22 species in the genus ''Haematomma'':Haematomma fenzlianum
''Haematomma'' is a genus of crustose lichens established by Abramo Bartolommeo Massalongo in 1852. It is the sole genus in the Haematommataceae, a family circumscribed by Josef Hafellner in 1984. Commonly called bloodstain lichens, the species ...
''
*'' Haematomma flexuosum''
*''Haematomma fluorescens
''Haematomma fluorescens'' is a species of corticolous (bark-dwelling) and crustose lichen in the family Haematommataceae. Found in the neotropics, it was formally described as a new species in 1995 by lichenologists Klaus Kalb and Bettina St ...
''
*'' Haematomma gallowayi''
*'' Haematomma infuscum''
*'' Haematomma nicoyense''
*'' Haematomma nothofagi''
*'' Haematomma ochroleucum''
*'' Haematomma parda''
*'' Haematomma persoonii''
*''Haematomma pluriseptatum
''Haematomma'' is a genus of crustose lichens established by Abramo Bartolommeo Massalongo in 1852. It is the sole genus in the Haematommataceae, a family circumscribed by Josef Hafellner in 1984. Commonly called bloodstain lichens, the species ...
''
*''Haematomma puniceum
''Haematomma'' is a genus of crustose lichens established by Abramo Bartolommeo Massalongo in 1852. It is the sole genus in the Haematommataceae, a family circumscribed by Josef Hafellner in 1984. Commonly called bloodstain lichens, the species ...
''
*''Haematomma rubidum
''Haematomma'' is a genus of crustose lichens established by Abramo Bartolommeo Massalongo in 1852. It is the sole genus in the Haematommataceae, a family circumscribed by Josef Hafellner in 1984. Commonly called bloodstain lichens, the species ...
''
*''Haematomma rufidulum
''Haematomma'' is a genus of crustose lichens established by Abramo Bartolommeo Massalongo in 1852. It is the sole genus in the Haematommataceae, a family circumscribed by Josef Hafellner in 1984. Commonly called bloodstain lichens, the species ...
''
*'' Haematomma similis''
*'' Haematomma sorediatum''
*'' Haematomma staigeriae''
*'' Haematomma stevensiae''
References
Lichen genera
Lecanorales genera
Taxa described in 1852
Taxa named by Abramo Bartolommeo Massalongo
{{Lecanorales-stub