Bacidina indigens (Vain.) S. Ekman & J. Gerasimova, 2017

Gerasimova, Julia V. & Ekman, Stefan, 2017, Taxonomy and nomenclature of seven names in Bacidia (Ramalinaceae, Lecanorales) described from Russia, Phytotaxa 316 (3), pp. 292-296 : 294

publication ID

https://doi.org/ 10.11646/phytotaxa.316.3.9

persistent identifier

https://treatment.plazi.org/id/03A7814D-6353-FFB5-FF11-465E68F8F9D8

treatment provided by

Felipe

scientific name

Bacidina indigens (Vain.) S. Ekman & J. Gerasimova
status

comb. nov.

Bacidina indigens (Vain.) S. Ekman & J. Gerasimova View in CoL , comb. nov.

MycoBank no.: MB819011 Lecidea indigens Vain. (1909: 104) . Bacidia indigens (Vain.) Zahlbr. (1926b: 208) . Type:— RUSSIA. Chukotka Peninsula: “Sibiria:

Pitlekai, 67° 7’ lat. bor., 173° 24’ long. occid. (Greenw.)”, 1879, E. Almquist s. n. (lectotype, designated here: S L31730!; isolectotype

TUR-V 20776!). Bacidia viridescens auct., non (A. Massal.) Th. Fr. [“(A. Massal.) Norman”, “(A. Massal.) Hellb.”].

The name Lecidea indigens and its combination in Bacidia have so far only been applied to the type material, which was collected on sandy soil on the Chukotka peninsula (although the protologue indicates that it was also observed on weathered bones). The type material of Bacidia indigens is characterized by an esorediate thallus consisting of coalescing granules (pale bluish to bluish grey according to Vainio 1909), flat to moderately convex, brown-black, mostly 0.4–0.8 mm wide apothecia possessing a concolorous, thin margin level with the disk. The proper exciple is paraplechtenchymatous and has red-brown and olivaceous brown pigmentation above, gradually fading to yellowbrown below. The hypothecium is pale yellowish brown (K-), and the hymenium is olivaceous green above, 50–55 μm tall and with abundant paraphyses with clavate apices. Ascospores are acicular, almost straight to more or less helical, 25–40 × (1.5–)2.0 μm, thinly septate (4–5 according to Vainio 1909).

Bacidina indigens View in CoL turns out to be the earliest available name for the taxon currently known as Bacidia viridescens View in CoL auct., which is based on Raphiospora viridescens ( Massalongo 1853) View in CoL . The holotype of the latter name in herbarium VER belongs to the taxon known as Bacidia bagliettoana (A. Massal. & De Not.) Jatta. A View in CoL full description of this taxon (under the name Bacidia viridescens View in CoL ) was provided by Coppins & Aptroot (2009). Bacidina indigens View in CoL is similar to B. egenula (Nyl.) Vězda View in CoL , which was pointed out by Vainio (1909). The latter has a brown, K+ greenish hypothecium and a finely granular thallus.

Kingdom

Fungi

Phylum

Ascomycota

Class

Lecanoromycetes

Order

Lecanorales

Family

Ramalinaceae

Genus

Bacidina

Loc

Bacidina indigens (Vain.) S. Ekman & J. Gerasimova

Gerasimova, Julia V. & Ekman, Stefan 2017
2017
Loc

Bacidina indigens

S. Ekman & J. Gerasimova 2017
2017
Loc

Bacidina indigens

S. Ekman & J. Gerasimova 2017
2017
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