Bulbothrix meizospora

Bulbothrix meizospora

''Bulbothrix meizospora'' is a species of foliose lichen in the family Parmeliaceae. It is found in Africa, Asia, and South America, where it grows on tree bark.
Parmelina tiliacea http://www.lichensmaritimes.org/index.php?task=fiche&lichen=324&lang=en Bulbothrix meizospora,Israel,Parmelina tiliacea

Appearance

''Bulbothrix meizospora'' has a greenish-grey thallus measuring 2.5–9 cm wide. The thallus comprises small, tightly attached and irregularly branched lobes that are 2–4 mm wide. Reproductive structures such as pustules, soredia, and isidia are absent from the thallus. The medulla is white, while the lower thallus surface is dull, black, wrinkled, and papillate , with a dark brown margin that measures 0.1–3 mm wide. Some of the lobes have simple black rhizines on the margins, while others have a rhizine-free border.

The apothecia are cup-shaped, measuring 1–6 mm in diameter with a smooth margin and a brown disc. Ascospores are ellipsoid to ovoid in shape, and typically measure 12–14 by 8–10 μm. Secondary compounds produced by ''Bulbothrix meizospora'' include atranorin and chloratranorin in the cortex, and consalazinic acid and salazinic acid in the medulla.

Distribution

In Asia, ''Bulbothrix meizospora'' is found in India, Thailand, Pakistan, and Nepal. In Africa, it has been recorded from Camaroon, Kenya, Malawi, and Tanzania. In South America, it is known from Brazil.

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Taxonomy
KingdomFungi
DivisionAscomycota
ClassLecanoromycetes
OrderLecanorales
FamilyParmeliaceae
GenusBulbothrix
SpeciesB. meizospora
Photographed in
Israel