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24-07-2024 13:19
Thomas FlammerI am looking for a PDF of the above article. Thank
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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolte sur branchette de Castanea dans u
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21-07-2024 10:28
![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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19-07-2024 11:08
![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
![Zuzana Sochorová (Egertová)](/uploads/user_vgn/Egertova-0001.jpg)
Ascospores in this collection measure (15.6) 16.2 - 19.9 (20.5) × (5.8) 6 - 7.2 (7.4) µm, Q = (2.3) 2.33 - 3.1 (3.4). Me = 17.9 × 6.7 µm; Qe = 2.7. They are first hyaline, then brownish, one-septate, very finely punctate. I have measured the width in the thickest part, not in the constriction.
I am not sure whether to determine it as M. leptosphaeriae or M. sphaeriae. Fungi of temperate Europe state these two taxa are perhaps identical, but Grafenhan et al. 2011 distinguish them as two species. They write: "The distinction between Macroconia leptosphaeriae and
M. sphaeriae is based on the size of ascospores and conidia in the
type collections. According to Wollenweber (1926), the ascospores
of the type material of M. leptosphaeriae are smaller (14–18 ×
5–5.5 µm) than those of M. sphaeriae (19–25 × 5.8–6.5 µm)."
Unfortunatelly I haven´t encountered any conidia, so I have to rely on ascospores. However, my values are between the values for the two species given by Wollenweber. Maybe this author measured dead ascospores (therefore smaller than my vital ones - then my collection would better fit M. leptosphaeriae)?
Thanks, Zuzana
![Christian Lechat](/uploads/user_vgn/Lechat-0002.jpg)
![Zuzana Sochorová (Egertová)](/uploads/user_vgn/Egertova-0001.jpg)
Thank you very much for your reply. No existence of M. sphaeriae would make it much easier.
Zuzana