34 CHAPTER 4 RESULTS 4.1 Lichen diversity Epiphytic lichens ...

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RIMELIA RETICULATA (Taylor) Hale & A.Fletcher
Thallus foliose, lobes wide, branching irregular, loosely attached to substrate.
Photobiont Trebouxia. Upper surface reticulately cracked and maculate, cilia present
along thalline margins. Soredia present along margins or lobe ends of thallus.
Medulla white, relatively thick, Lower surface black centrally, brown peripherally,
plane to papillate marginally. Rhizines simple, short and long. Ascocarps apothecial,
laminal, orbicular, margin prominent with thalloid rim, gray or hyaline. Asci
lecanoral, apex thickened and amyloid, with wide, 8-spored. Ascospores simple,
ellipsoid to broadly ellipsoid, 10-18 x 6-11 µm, thinned wall.
Rimelia reticulata
Figure 4.34 Rimelia reticulata, scale bar = 5 mm
Family PERTUSARIACEAE
PERTUSARIA DC.
Thallus crustose, continuous or areolate to granular. Photobiont green algae:
Trebouxia, chlorococcoid. Ascocarps apothecia, immersed, disc wide, punctiform
and opening by ostiole and thus perithecioid. Paraphyses branched and variously
reticulately anastomosing, not capitates. Asci 1-8-spored. Ascospores colourless, over
50 µm long, without septa, oval ellipsoid.