Fascinating Lichens of Sri Lanka

Cr
C
SL
Lecanora helva
Lecanora leprosa
SL
C
Cr
Lecanoraceae
Description Crustose. The thallus is thin to thick, plane, continuous to
verruculose, and entirely yellowish white to yellowish green or greenish grey.
Soredia are absent. Prothallus is brownish. Apothecia are immersed when
immature, but become sessile with a pale brown to orange or pale greening
brown disc when mature. The apothecia margin is concolourous (same colour as
the thallus), thin, entire, and verrucose.
Description Crustose. The thallus is thin to thick, plane, continuous or dispersedverrucose
to verruculose (delicately warted), and yellowish white to yellowish
grey or greenish grey. Soredia are absent. Prothallus is not visible. Apothecia are
immersed when immature, becoming sessile with a pale orange to yellowish
disc. The apothecia margin is concolourous (same colour as the thallus), thin to
thick, entirely, and sometimes verrucose.
Lecanoraceae
Chemistry Thallus and apothecial margin K+ yellow, C-, PD + pale orange.
Chemistry Thallus and apothecial margin K+ yellow, C-, PD + pale orange.
Status Common at high elevations, found on bark and wood. New record for
Sri Lanka.
Status Collected from very few places in Sri Lanka on bark and wood, thus far.
New record for Sri Lanka.
Habitat Mostly found in humid forest areas above 800 m. Occurs on the bark of
trees. This species is pantropical.
Habitat Mostly found in humid forest areas above 1000 m. Occurs on the bark of
trees. This species is pantropical.
Locations Kandy, Kegalle, Matale, Nuwara Eliya, Nawalapitiya, and Hatton.
Locations Knuckles mountain region and Matale district.
102 Fascinating Lichens of Sri Lanka
Fascinating Lichens of Sri Lanka 103