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Peziza gr apiculata 111115 27

Miguel Ángel Ribes, 09-12-2015 21:16

Miguel Ã�ngel Ribes

Good night

I have this small (< 6mm diam.) Peziza, without stipe, growing in a slope of a path, inside a "Botanical Garden" in Portugal. I have a previous collection of P. apiculata but I think this one does not fit.

Spores measurement (without "apicula"): (19.2) 20.0 - 22.8 (24.1) x (8.0) 8.4 - 9.6 (10.2) µm; Q = (2.1) 2.2 - 2.5 (2.8) ; N = 77; Me = 21.3 x 9.1 µm ; Qe = 2.4

Asci with croziers, truncate apex and amyloid in all the surface.

Thank you in advance.

Miguel Á. Ribes

Nicolas VAN VOOREN, 13-12-2015 20:43

Nicolas VAN VOOREN

Re : Peziza gr apiculata 111115 27

No objection to name this collection P. apiculata. Beautiful pictures as usual ;-)

Miguel Ángel Ribes, 13-12-2015 22:08

Miguel Ã�ngel Ribes

Re : Peziza gr apiculata 111115 27

Thank you Nico

What a variable species!!!! I had this another collection like P. apiculata (11/07/2014), with differente spores, ornamentation and apicules; and this spores measures (including apicules):

(22.4) 23.7 - 27.3 (28.9) x (7.8) 8.8 - 10.6 (12.2) µm
Q = (2.1) 2.4 - 2.9 (3.2) ; N = 85
Me = 25.3 x 9.7 µm ; Qe = 2.6

All spores of this collection of 2014 had very regular apicules shape and size. But actual collection 2015 has very irregular apicules shape and size.

Is there any clear character to separate P. apiculata from obtusapiculata, polarispinosa, vagneri, thozetii ...?

Thanks again.

Andreas Gminder, 14-12-2015 22:10

Andreas Gminder

Re : Peziza gr apiculata 111115 27

Hola Miquel,

what you show in your picture is P. obtusapiculata.

best regards,
Andreas

Miguel Ángel Ribes, 15-12-2015 00:37

Miguel Ã�ngel Ribes

Re : Peziza gr apiculata 111115 27

Hi Andreas

You are talking about the second one, aren't you? So, first one is P. apiculata, second one is P. obtusapiculata.

Any actual paper about this group?

Danke.

Nicolas VAN VOOREN, 15-12-2015 19:01

Nicolas VAN VOOREN

Re : Peziza gr apiculata 111115 27

Yes, Andreas is right. Your second collection is P. obtusapiculata. In my opinion, greenish tinges are always present on specimens of the latter, especially in young specimens.

Miguel Ángel Ribes, 15-12-2015 20:00

Miguel Ã�ngel Ribes

Re : Peziza gr apiculata 111115 27

Thanks a lot Andreas and Nico.

Ueli Graf, 20-12-2015 18:49

Ueli Graf

Re : Peziza gr apiculata 111115 27

Hallo Andreas,
hast du von P. vagneri auch so eine Sporenzeichnung?

Gruss

Ueli

Andreas Gminder, 20-12-2015 18:51

Andreas Gminder

Re : Peziza gr apiculata 111115 27

Hallo Ueli,

nee, tut mir leid, P. wagneri kenne ich leider nicht, auch die anderen apiculaten Arten nicht.

beste Grüße
Andreas

Ueli Graf, 20-12-2015 19:06

Ueli Graf

Re : Peziza gr apiculata 111115 27

Besten Dank Andreas