Xanthoparmelia - Wikipedia
Another reproductive feature, conidiomata (pycnidia), are usually found immersed in the thallus and produce spores that are typically two-ended (bifusiform) or cylindrical. [11]
Plants of the Gila Wilderness-- Xanthoparmelia cumberlandia
Pycnidia (small pore-like flask shaped structures embedded in the thallus in which asexual spores are formed) are abundant. The medulla is yellow with KOH. Xanthoparmelia cumberlandia is one of the most common lichens in the Gila area.
Lichens marins - Xanthoparmelia pulla (Ach.) O. Blanco & al.
On iron-rich rocks highly exposed to seaspray a different morph devoid of large apothecia, but with numerous minute aborted and infertile apothecia, may be found: Xanthoparmelia pulla f.
Phylogenetic study and taxonomic revision of the Xanthoparmelia ...
Xanthoparmelia (Parmeliaceae, Ascomycota) is the most species-rich genus of lichen-forming fungi. Species boundaries are based on morphological and chemical features, varying reproductive strategies and, more recently, molecular sequence data. ... Pycnidia rare, immersed conidia bifusiform, 5–7 × 1 µm. Secondary metabolites. Upper cortex K ...
Xanthoparmelia tinctina - Wikipedia
Xanthoparmelia tinctina is a species of lichen from the family Parmeliaceae that can be found in Arizona, California, Northern Africa and Europe. The upper surface is yellow–green, while the bottom surface is brown and flat, measuring 0.2–0.6 millimetres (0.0079–0.0236 in) in diameter.
Xanthoparmelia was accorded generic status by Hale (1974) to accommodate foliose, primarily saxi colous lichens having usnic acid in the upper cortex (giving a characteristic yellow-green colour to the upper surface), usually simple rhizines, and a pored epicortex external to the palisade plectenchyma of the upper cortex (Hale 1973).
Reproductive Structures - Lichen website - ANBG
However a number of lichens do produce asexual fungal propagules in well-defined structures called pycnidia. Superficially a pycnidium resembles a tiny perithecium, in that both are often globose chambers in which propagules are produced.
Xanthoparmelia is undoubtedly the largest genus within the family (KANTVILAS et al. 2002; McCARTHY 2008). This report presents descriptions of five new species and three new records of
Plants of the Gila Wilderness-- Xanthoparmelia novomexicana
Pycnidia (small pore-like flask shaped structures embedded in the thallus in which asexual spores are formed) are abundant. The medulla is brown with KOH. Xanthoparmelia novomexicana is one of the most common lichens in the Gila area.
Using morphological, chemical, and molecular data to study the ...
Sep 22, 2023 — Here we reviewed morphological features, secondary metabolites and the DNA sequences of ITS, mtSSU and nuLSU markers to study the diversity of Xanthoparmelia in southern Africa. A total of 37 species were recorded.