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25-01-2015 09:31

Nina Filippova

I was following Barr (1970) for identification of

24-01-2015 14:31

Nina Filippova

Good day to everyone,there is some uncertainty wit

23-01-2015 20:56

Godorova Olga Godorova Olga

Hello. I thought, I've found some tiny Cheilymenia

23-01-2015 18:08

Godorova Olga Godorova Olga

Hello. I've found these on rotten stems of grass i

23-01-2015 16:06

Malcolm  Greaves Malcolm Greaves

This second Ascobolus was found on Alpaca dung but

23-01-2015 13:54

Garcia Susana

Apothecia found on hardwood.Size of 250-850um. Gra

23-01-2015 15:59

Malcolm  Greaves Malcolm Greaves

This was on gypsy horse dung. As the gypsys and th

22-01-2015 17:40

Vasileios Kaounas Vasileios Kaounas

Found 22-01-15, in sandy soil, in forest with Pinu

23-01-2015 01:21

Miguel Ãngel Ribes Miguel Ángel Ribes

Good night againThis yellow-pink Orbilia was growi

22-01-2015 12:32

Vasileios Kaounas Vasileios Kaounas

Found 22-01-15, in Greece, in forest with Pinus ha

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Three amerosporous perithecioid species on Ericaceae
Nina Filippova, 25-01-2015 09:31
I was following Barr (1970) for identification of these species collected in raised bog on Ericoid dwarfshrubs:

The first one was already published here previously, Physalospora vaccinii which is found on leaves of Oxycoccus palustris and Andromeda polifolia.

http://www.ascofrance.com/search_forum/22363


Another species - Physalospora hyperborea was found regularly in the same place. I thought about Phomatospora clarae-bonae as well, because there is some whitish spots surrounding apical wart, but finally decided that P. hyperborea fits better. There could be mistake..


On fallen leaves of Andromeda polifolia, Oxycoccus palustris.


Perithecia globose, submerged under epidermis with protruding at the surface apical wart, scattered or several nearby in groups at both sides of the leaf. Excipulum of lower part from brownish rectangular cells 20–30 mk in diameter, apical wart from darker small cells; asci cylindrical, short-stipitate, becoming broader with age, with refractive ring, 130–150 x 18.3–20.8 mk; paraphyses abundant, cylindrical, segmented with constrictions, about 5 mk broad; ascospores ellipsoid, with many medium oil guttules, surrounded by thin gelatinous coat, measured in vital state 20.3 (16.8–22.2) x 7 (6.2–8.1) mk (n=30).

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Nina Filippova, 25-01-2015 09:35
Re : Three amerosporous perithecioid species on Ericaceae
The last species - Botryosphaeria rhodorae occurring on leaves of Ledum palustre, but spores in my specimen some larger than in the description in Barr, 1970.

Ascomata spherical, submerged under epidermis, with emerging upper wart, without setae, about 370 mk in diameter; scattered on upper leaf side. Asci clavate, with short stalk, bitunicate, 122–150 x 24–32 mk; paraphysoid tissue abundant, threads about 3–5 mk broad; ascospores obovate, filled with small oil guttules, with thin gelatinous coating, 23.3 (20.4–27) x 12 (10.8–13.8) mk (n=17).
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