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Ptychographa xylographoides

Ptychographa xylographoides is a species of lichenized fungi and the sole member of the monotypic genus Ptychographa.

Taxonomy and Nomenclature

• Scientific Name: Ptychographa xylographoides Nyl.
• Family: Agyriaceae (sometimes also listed under Trapeliaceae)
• Kingdom: Fungi
• Phylum: Ascomycota
• Rank: Species
• Synonyms: Information regarding synonyms or autonyms was not explicitly provided in the text.
• Type species: Ptychographa xylographoides Nyl., 1874

Distribution and Habitat

• The species has been observed in British Columbia, specifically on Vancouver Island, near Roberts Lake close to Campbell River.
• It is found on bare wood and rotting wood snags.

Morphological Characteristics

• It produces lirelliform (elongated, line-like) apothecia (fruiting bodies).
• Apothecia are initially narrow, becoming triangular or quadrangular.
• Spores measure 6-8 x 3-5 ?m.
• Hymenium is simple.

Ecological Role and Interactions

• Ptychographa xylographoides is found alongside other lichen species such as Ophioparma rubricosa, Letharia vulpina, Placynthiella spp., and Xylographa parallela.
• It is more frequently found on bare wood than bark, indicating a preference for decaying wood substrates.
• It appears to colonize epiphytic (wood) environments.

Genetic Information

• An isolate of Ptychographa xylographoides (T1123) has been analyzed for its DNA replication licensing factor MCM7 (MCM7) gene (partial cds).
• The sequence, 593 bp in length, is available under GenBank accession number KR017687.1.

Further Information

• Information can be found in the Index Fungorum.
• Specimens are housed in the Herbarium of the Botanical Museum at the Finnish Museum of Natural History.
• Data is available through GBIF (Global Biodiversity Information Facility).
• Encyclopedia of Life.