Amandinea dakotensis (H. Magn.) P. F. May & Sheard

in Sheard & May, Bryologist 100, 2: 160 (1997).

Basionym: Rinodina dakotensis H. Magn., (1947).

 

Protolog: Thallus effusus, cinereo-albescens, granulosus, KOH+ flavus. Apothecia crebra, minuta, adnata, disco fuscoatro, plano vel convexo, margine thallino subgranulato cincto. Hypothecium pallidum vel fulvofuscum. Thecium altitudine mediocri, apicibus paraphysarum fusco-capitatis. Sporae minutae, pariete tenui, uniformi. Exs.: Cumm. 163 b (S.) s. n. R. sophodes e. exigua.
S. Dakota: Near Brookings, 1895, on plum trees, Thos. A. Williams in Cumm. 163b. Associated with Lecidea cf. achristotera (thec. and especially hyp. with oil-drops, conidia about 20x0.8 µ, very arcuated).

Type locality: USA, South Dakota, near Brookings, on plum trees, associated with Lecidea cf. achristotera, 1895, Thos. A. Williams in Cumm. 163b (S).

Type locality coordinates: Data lacking.

Barcode: Data lacking.

Thallus: partly brownish- or ashy-grey, rather thin, rough. Apothecia in part of thallus almost contiguous, 0.3-0.5 mm wide, margin hardly prominent, often rough. Apothecia about 0.2 mm thick, sometimes with 0.22 mm thallus below, pale part about 150 µ deep. Gonidial stratum up into the edge and continuous all round with 7-10 or oven 15-20 µ large gonidia, but sometimes absent at one side. Irregular small parts of cortex seen on lower side, hyaline, with about 3 µ wide cells. Exciple varying, sometimes 15-20 µ thick all round with 1.5 µ cells, hyaline, sometimes forming the edge and dark brown. 15-25 µ thick and going inwards at base for 85 µ, sometimes dark only at the very edge. Hypothecium 30-35 µ thick, hyaline with intricate hyphae, or often dark yellowish brown to 100 µ thick, but then separated from the dark exciple by a paler stratum. Thecium 70-80 µ high, hyaline, I+ dark blue like parts of hypothecium and exciple: apices of paraphyses dark yellowish brown, capitate, 3.5-5 µ, discrete in KOH. Spores 8, 11-13 x 6-7 µ pale brownish green, thin-walled, constricted at the thin septum (Magnusson 1947: 40).

Photobiont: Data lacking.

Chemistry: No lichen substances.

Ecology: Data lacking.

Distribution: Database

Molecular data: Genbank

Mycobank: Mycobank

Note:

Pictures: Tropical Lichens