CC BY-SA 4.0 - Source: Bungartz F, Søchting U, Arup U. Teloschistaceae (lichenized Ascomycota) from the Galapagos Islands: a phylogenetic revision based on morphological, anatomical, chemical, and molecular data. Plant and Fungal Systematics. 2020;65(2):515–576. doi:10.35535/pfsyst-2020-0030.
Oceanoplaca sideritoides. A–C – morphotype of Oceanoplaca sideritoides lacking isidia. A – thallus of olive, convex areoles, apothecia
sessile, with rust-red disc (Bungartz, F. 4457, CDS 28543); B – apothecial section: zeorine, the proper exciple prominent, hyaline inside, the
thalline exciple developed below, abundantly filled with small crystals and trebouxioid green algae, both contiguous along their outside with
a deeply violaceous pigment, epihymenium distinct, with brownish pigment granules [DIC, in water] (Bungartz, F. 3663, CDS 27481); C – ascus
with broadly ellipsoid spores, septum moderately broad [DIC, in water] (Aptroot, A. 64095, CDS 30656). D–F – morphotype of Oceanoplaca
sideritoides with isidia. D – thallus with apothecia and isidia (Bungartz, F. 6516, CDS 34733–holotype); E – apothecial section: zeorine, the
proper exciple prominent, hyaline inside, the thalline exciple developed below, abundantly filled with small crystals and trebouxioid green algae,
both contiguous along their outside with a deeply violaceous pigment, epihymenium distinct, with brownish pigment granules [DIC, in water]
(Bungartz, F. 6516, CDS 34733–holotype); F – ascus with broadly ellipsoid spores, septum moderately broad [DIC, in water] (Aptroot, A. 63686,
CDS 30242). Scales: A, D = 2 mm; B, E = 100 μm; C, F = 10 μm.
