- Joshi Y. & Bansal P.
- Acta Botanica Hungarica
- 65: 325–335
A new parasitic lichenicolous fungus Knudsenia, with the type species, K. flavoparmeliarum,
growing on the thallus of the corticolous lichen Flavoparmelia caperata in subalpine and
alpine regions of Central Himalaya (Uttarakhand, India) is described, illustrated, and compared
with other morphologically similar lichenicolous fungi. It is characterised by having
inconspicuous galls; stromatic ascomata with sterile brownish black to black tissue which
is K+ majenta, N–, I–; hymenial gel K/I–; exciple evident; paraphyses simple to sparsely
branched, apically not pigmented; asci bitunicate, elongate, clavate to subcylindrical
with an indistinct ocular chamber with a very short stalk, 8-spored, K/I+ reddish brown;
ascospores hyaline, spherical to ellipsoid at maturity, simple to rarely 1-pseudoseptate
[(9.0–)9.5–10.5–11.5(–12.0) × (1.0–)1.2–1.5–2.0(–2.5) μm], I–, perispore absent. Since the species
lacks molecular data, hence, it was tentatively placed in the family Planistromellaceae
pending further studies.
Key words: fungi, Himalaya, lichens, new taxon, Parmeliaceae.
- Sunday, 19 November 2023 20:18