
13-06-2025 09:41
Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Bonjour,Un petit discomycète qui me résiste. Il

21-07-2025 19:22
Ethan CrensonHello all, Here is an Orbilia found by a friend

14-07-2025 11:20

Bonjour, Voici une espèce de (?) Hyaloscyphace

18-07-2025 23:03
Hello.Fruitings between 51 and 130 microns in tota

16-07-2025 17:34

Hello,I have trouble distinguishing above mention

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


Thank you very much for your reply. No existence of M. sphaeriae would make it much easier.
Zuzana