Punctelia perreticulata
Family
Parmeliaceae
Flora category
Lichen – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Lichens - Foliose
Current conservation status
2018 | At Risk – Naturally Uncommon | Qualifiers: SO, Sp
Distribution
North Island: South Auckland (Rotorua). South Island: Nelson (Brightwater), Canterbury (Temuka), Otago (Whare Flat, Dunedin).
Widely distributed worldwide.
Habitat
On tree bark (Fuscospora, Podocarpus totara) and tree stumps. Still very poorly collected and known in New Zealand.
Detailed description
Thallus closely or loosely attached, 5–12 cm diam. Lobes (1–)2–4(–8) mm wide, surface wrinkled to scrobiculate, pseudocyphellate. Pseudocyphellae laminal and marginal, punctiform, oblong or linear-elongate to reticulate, sometimes raised and located on ridges of upper cortex, rarely restricted to margins, developing into secondary soralia with farinose or granular soredia, infrequently mixed with small, thick phyllidia. Medulla white. Lower surface pale-buff or creamish, darker below apices. Apothecia very rare. Ascospores ellipsoidal, (8–)10–13 × (5–)6.5–10 μm. Pycnidia laminal, immersed. Conidia long-filiform, (5–)6.5–11(–15) × 1 μm.
Chemistry: Cortex K+ yellow; medulla K−, C+ pink to red, KC+ red, Pd−; containing atranorin and lecanoric acid.
Similar taxa
Punctelia perrecticulata is similar in all characters to P. subrudecta but is distinguished by the long, filiform conidia, and well-developed marginal soralia. A useful table showing differences in characters in P. perrecticulata, P. borreri and P. subrudecta is given in Longán et al. (2000).
Substrate
Corticolous
Attribution
Fact sheet prepared by Marley Ford (15 September 2021). Brief description, Distribution, Habitat, Features and Similar taxa sections copied from Galloway (2007).
References and further reading
Galloway D.J. 2007: Flora of New Zealand: Lichens, including lichen-forming and lichenicolous fungi. 2nd edition. Lincoln, Manaaki Whenua Press. 2261 pp
Longán A., Barbero M. and Gómez-Bolea A. 2000: Comparative studies on Punctelia borreri, P. perreticulata and P. subrudecta Parmeliaceae, lichenized Ascomycotina from the Iberian Peninsula. Mycotax 74(2): 367-378.