Lecanora haywardiorum Lumbsch

• Region

  Oceania

• Country

  Australia

• State/Province

  New South Wales

• Locality

  Barrington Tops National Park

• Elevation

  Alt. 450 m. (1476 ft.)

• Coordinates

  -32.12, 151.48

• Location Notes

  [Location has associations with the following Indigenous peoples or organizations: Geawegal, Guringai [1]; Worimi [4]. Determined by Local Contexts Project ID 544ed405-7fac-44c2-bc93-598921528f3e on 2025-11-04. Resources: [1] Map data provided by Native Land Digital (https://native-land.ca/). Used with permission for educational and non-commercial purposes. | [4] The Glottography Consortium. 2007. Glottography Dataset Derived from Asher and Moseley 2007 "Atlas of the World's Languages". Zenodo. doi:https://doi.org/10.5281/zenodo.15287258.]

• Distribution

  Map all specimens of this taxon

No. 6: *Lecanora haywardiorum* Lumbsch spec. nov.
Typus: AUSTRALIA, New South Wales, Barrington Tops National Park. Rocky crossing waterfalls in wet sclerophyll forest, 32°07'S, 151°29'E, ca. 450 m alt. On siliceous rocks beside stream. Associated lichens include *Porpidia albocaerulescens* and *Xanthoparmelia* spp. 22.VI.1991, H.T. Lumbsch & R.B. Filson (CBG-Holotypus).
Planta saxicola. Thallus crustaceus, uniformis, flavidocinereus vel cinereo-albidus, continuus vel disperse verrucosus ad verruculosus, margine indefinito vel definito, interdum prothallo albo.
Apothecia sessilia, vel saepe ad basin constricta, 0.6-1.8 mm diam.; disci atrofusci ad atro-brunnei; margines laeves ad verruculosi vel verrucosi, elevati. Amphithecium crystalla magna minutaque continens. Parathecium hyalinum, crystalla minuta continens, ca. 10 µm crassum. Epihymenium nec inspersum, neque granulosum, fusco-brunneum. Cortex 25 µm crassum. Hymenium hyalinum, 65-85 µm altum. Hypothecium hyalinum. Paraphyses septatae, ca. 1.5-2 µm crassae. Asci clavati, 50-70 x 10-18 µm. Sporae hyalinae, non-septatae, ellipsoideae, (9)-10.5-13.5-(15.5) x (5.5)-7.5-8.5-(9.5) µm. Pycnidia non visa.
Thallus et apothecia atranorinum, chloroatranorinum, zeorinum et alium continentia.
(Figs. 1-6)
Thallus crustose, uniform, whitish to yellowish white or greyish white, continuous or dispersed verrucose to verruculose, epruinose; margin indefinite or definite, sometimes with a whitish prothallus.
Apothecia sessile or often constricted at the base, 0.6-1.8 mm diam.; disks very dark brown to brown-black; margins smooth to verruculose or verrucose, prominent. Amphithecium with large crystals, but also small KOH-soluble crystals abundant. Parathecium hyaline, with small KOH-soluble crystals, bright whitish in polarized light, ca. 10 µm thick. Epihymenium *glabrata* type (Brodo 1984), without crystals, with a 2 µm high hyaline layer above, dark in polarized light, pigmented dark brown to brown. Cortex 25 µm thick. Hymenium hyaline, 65-85 µm high. Hypothecium hyaline. Paraphyses septate, ca. 1.5-2 µm thick, only slightly thickened at the apices. Asci clavate, 50-70 x 10-18 µm. Spores hyaline, non-septatae, ellipsoid, (9)-10.5-13.5-(15.5) x (5.5)-7.5-8.5-(9.5) µm. Pycnidia not seen.
Chemistry: Atranorin and zeorin as major compounds, unknown triterpenoids as minor and chloroatranorin sometimes present as minor, sometimes only in traces by HPLC and TLC.
Etymology: The new species is named in honour of Dr. Bruce W. Hayward and Glenys Hayward (Auckland, New Zealand), who contributed much to the knowledge of lichens in New Zealand by their extensive collections and floristic publications. They collected more than a half of the known specimens of the new species.
MYCOTAXON
Volume XLV, pp. 473-488 October-December 1992
COMMENTS ON THE EXSICCAT "LECANOROID LICHENS" I
H.T. LUMBSCH and G.B. FEIGE
Botanisches Institut, Universität Essen, Postfach 103 764, D-4300 Essen 1, Germany.
Abstract: The first fascicle of a new lichen exsiccat "Lecanoroid Lichens" is being issued by the Botanical Institute, University of Essen, Germany. Some remarks on the taxonomy, nomenclature and chemistry of the distributed species are given. *Lecanora haywardiorum* Lumbsch

*Lecanora haywardiorum*
*Porpidia albocaerulescens*
*Xanthoparmelia*

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