ITALIC 8.0

Reichlingia zwackhii (Sandst.) Frisch & G. Thor

in Frisch & al., Nova Hedwigia, 98: 310, 2014. Basionym: Arthonia zwackhii Sandst. - Abh. naturw. Ver. Bremen, 17: 604, 1903.

Synonyms:

Distribution: C - Tosc, Laz.

Description: Thallus crustose, up to 80 μm thick, effuse, white to pale grey, matt, continuous to slightly rimose. Apothecia arthonioid, of very different shapes, from rounded to linear-lirelliform, scattered to crowded into irregularly stellate groups, up to 0.7 mm across, in section 65-95 μm tall, red-brown, but often thinly white-pruinose, without a proper margin. Proper exciple poorly developed, dark brown, of paraphysoid-like hyphae; epithecium red-brown, K+ pale green; hymenium colourless or pale reddish brown in upper part, 40-50 μm high, hemiamyloid; paraphysoids branched and anastomosing, 1-2(-3) μm thick, the apical cells brown-walled and to 4-6 μm wide, a few with a brown cap; hypothecium pale to dark brown, 15-40 μm high, Asci (6-)8-spored, clavate, semi-fissitunicate, with a large apical dome and a distinct ocular chamber, without K/I+ tholus structures. Ascospores 3-4(-5)-septate, the apical cell enlarged, hyaline but turning brown and warted when overmature, cylindrical-obovoid to slightly clavate, 16-23(-26) x 5-7 μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, or P+ patchily yellow, UV-. Chemistry: thallus with an unidentified substance, and 2'-O-methylperlatolic acid.

Note: a mild-temperate to tropical species found on smooth bark, especially of Fraxinus and Carpinus, in humid deciduous woodlands, often associated with Phlyctis argena; in Italy it was overlooked or confused with other species, and is perhaps more widespread, but never common, being included in the Italian red list of epiphytic lichens as “Endangered” (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: very rare

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php

Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/

Courtesy: Anita Stridvall

Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/

Courtesy: Anita Stridvall