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Lobaria<br />
Lungworts, lung lichens<br />
Peltigerales Lobariaceae<br />
90<br />
Lobaria is a cosmopolitan genus, but is strictly restricted to cool temperate,<br />
subtropical and montane-tropical regions. It is mainly distributed in East Asia<br />
and South America. Species are known from bark and rocks in high elevation<br />
montane forest. They are most commonly found in shaded forest interiors. The<br />
<strong>Sri</strong> <strong>Lanka</strong>n species are only found in a few locations in the central highlands.<br />
This genus is conspicuous as it has large, broad lobes, typically with rather squarish<br />
(shape that is almost like a square) lobes. Species <strong>of</strong> this genus contain green algae<br />
and/or cyanobacteria as their photobiont. The pseudocyphellae or cyphellae are<br />
absent in Lobaria unlike the sister genera, Sticta and Pseudocyphellaria <strong>of</strong> the<br />
family. But all three genera, Lobaria, Sticta and Pseudocyphellaria are most similar<br />
to each other in size, colour and the appearance <strong>of</strong> the lower surface.<br />
Apothecia produced on the lobe surface or along the margin, lecanorine,<br />
reddish brown to brown disk; Asci: 8-spored; Spores: colourless to slightly<br />
brownish, transversely septate (spore is transversely divided).<br />
Chemistry PD+ yellow to red, K+ yellow to red, KC+ red, C+ pink.<br />
Lobaria discolor<br />
C<br />
Fo<br />
Lobariaceae<br />
Description Foliose, the thallus is loosely adnate from the centre, with wide<br />
lobes that are free at the margins. The upper surface is greyish green to olive<br />
green brown when dry, and bright green when wet. Isidia and soredia absent.<br />
The lower surface is pale tan. Rhizines are found in older central areas. Apothecia<br />
are wide and red- brown, and were abundant and conspicuous on <strong>Sri</strong> <strong>Lanka</strong>n<br />
species.<br />
Lobariaceae<br />
Status This species can be easily identified due to its red brown apothecia, and<br />
is only found in cool montane forests, typically on dead logs and on tree bark.<br />
Habitat Mostly restricted to humid high elevation forest areas, growing on live<br />
and dead bark. This species can be seen within the view <strong>of</strong> the casual observer,<br />
but only in specific habitats.<br />
Locations Common in Horton Plains.<br />
114 <strong>Fascinating</strong> <strong>Lichens</strong> <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong><br />
<strong>Fascinating</strong> <strong>Lichens</strong> <strong>of</strong> <strong>Sri</strong> <strong>Lanka</strong> 115
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