Coenogonium frederici (Kalb) Kalb & Lücking

Kalb, Jutarat, Boonpragob, Kansri & Kalb, Klaus, 2016, New Coenogonium species (Ostropales: Coenogoniaceae) from Thailand, new reports and a revised key to the species occurring in the country, Phytotaxa 283 (2), pp. 101-122 : 111-112

publication ID

https://doi.org/ 10.11646/phytotaxa.283.2.1

persistent identifier

https://treatment.plazi.org/id/35201F40-FFE1-9B06-B5E2-FB653D51FEFC

treatment provided by

Felipe

scientific name

Coenogonium frederici (Kalb) Kalb & Lücking
status

 

Coenogonium frederici (Kalb) Kalb & Lücking View in CoL , Fungal Diversity 23: 297 (2006). ( Fig. 6E View FIGURE 6 )

Dimerella frederici Kalb, Folia Geobot. Phytotax. View in CoL 15: 310 (1980).

Thallus crustose, corticolous, continuous, ± thick, dull, smooth, grey to greyish green, 15–40 mm diam., with a distinct, 10–20 μm thick corticiform, paraplectenchymatic layer; prothallus absent. Photobiont Trentepohlia , cells angular to rounded, mostly in irregular, compact clumps, cells 8–12 × 7–10 μm. Apothecia sessile, rounded in outline, 0.4–0.6 mm diam., 170–200 μm high; disc plane or slightly convex with age, concave in young apothecia, pale orange to ochre; margin initially prominent, then depressed, smooth (in most Thai specimens) or slightly denticulate (in type), cream-colored. Excipulum paraplectenchymatous with irregularly arranged cells, 60–75 μm broad, outer part I+ yellow-brown, inner part I–; cells globose to elongate, thin- or partly thick-walled, 8–12 × 4–7 μm. Hypothecium 15–20 μm high, colorless to pale yellowish. Hymenium 70–90 μm high, colorless, I+ blue, then quickly reddish brown then greyish brown. Asci 60–75 × 6 (if spores oblique-uniseriate) –10 μm (if spores irregularly biseriate). Ascospores oblique-uniseriate or irregularly biseriate, broadly ellipsoid, 1-septate, 8–12 × 3–4 μm, 2,2–3.1 times long as broad. Pycnidia wart-shaped, 0.12–0.15 mm diam., whitish. Conidia bacillar, non-septate ca. 3 × 1 μm. Chemistry: no substances detected by TLC.

Distribution and habitat:— U.S.A. Hawaii (type), BRITISH OVERSEAS TERRITORY. Bermuda, leg. Berger 22369 (herb. Berger, unpublished). In Thailand, this species occurs in hill evergreen forests from 1800–2185 m. Coenogonium frederici is a new addition to the Thai lichen biota.

Remarks:—This species is very similar to C. convexum and C. nepalense . It can be distinguished from both by its broadly ellipsoid ascospores (3.5–5.8 times long as broad in C. convexum and 3.2–5.1 times long as broad in C. nepalense ). It is furthermore similar to C. portoricense Mercado-Díaz & Lücking , but differs from that species by the different color of the dics and the thallus (disc bright orange, thallus shiny with a white-grey prothallus in C. portoricense ).

Material from Thailand examined:— Chiang Mai Province: Doi Inthanon National Park, Nature trail Kew Mae Pan , in hill evergreen forests, 2185 m, 18°33’27.06’’ N, 83°33’27.06’’ E, 10 January 2007, M. Sanglarbcharoenkit RU-SMCH14, RU-SMCH19 ( RAMK 015470 About RAMK , RAMK 01573 About RAMK ) GoogleMaps ; ibid., 17 March 2007, V. Chaiyabutr, RU-VC2 ( RAMK About RAMK 027815) GoogleMaps ; ibid., Fhang district GoogleMaps ; Doi Pha Hom Pok National Park , in hill evergreen forests, 1800 m, 23 January 2005, S. Jariangprasert ( MU, Chiang Mai 5829) .

M

Botanische Staatssammlung München

V

Royal British Columbia Museum - Herbarium

S

Department of Botany, Swedish Museum of Natural History

MU

Midwestern University

Kingdom

Fungi

Phylum

Ascomycota

Class

Lecanoromycetes

Order

Ostropales

Family

Coenogoniaceae

Genus

Coenogonium

Loc

Coenogonium frederici (Kalb) Kalb & Lücking

Kalb, Jutarat, Boonpragob, Kansri & Kalb, Klaus 2016
2016
Loc

Coenogonium frederici (Kalb) Kalb & Lücking

Kalb & Lucking 2006: 297
2006
Loc

Dimerella frederici

Kalb 1980: 310
1980
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