Author Topic: Terrestrial Orchids 2018 (Read 15532 times)

Steve Garvie · « **Reply #30 on:** April 25, 2018, 11:04:46 PM »

Nice orchids Aldo!

Some Australian orchids in flower here:

Diuris amplissima

Caladenia (flava x latifolia) x flava

Thelymitra nuda x variegata

Diuris behrii

Thelymitra luteocilium

Chris Johnson · « **Reply #31 on:** April 26, 2018, 08:36:54 AM »

Wow, stunning, Steve.

Pauli · « **Reply #32 on:** April 26, 2018, 10:22:17 AM »

Superb Pictures of orchids, nearly unknown to me!

Steve Garvie · « **Reply #33 on:** April 28, 2018, 11:43:03 PM »

Many thanks Chris and Herbert.

Changnienia amoena: I got this from a German vendor as a small tuber 4 years ago. I grow it in shade on a shelf under the bench of a cold greenhouse. It is in a compost comprised of Sophistocat cat litter/perlite/pine bark and pine needles with a small amount of proprietary ericaceous compost added. It is kept moist over the Winter and is gently dried off in late Spring when it goes dormant. Like Calypso it requires a little Summer moisture to prevent dessication. It also needs protection from marauding molluscs and other nefarious wee varmints.

Steve Garvie · « **Reply #34 on:** May 02, 2018, 10:09:17 PM »

Orchis provincialis

Orchis mascula

Orchis ustulata

Orchis morio

Ophrys picta

sokol · « **Reply #35 on:** May 03, 2018, 04:48:09 AM »

Nice pictures Steve and I like Changnienia amoena most.

The last one looks more like Ophrys picta and is surely not Ophrys oestrifera, neither s.str. nor s.l..

Steve Garvie · « **Reply #36 on:** May 03, 2018, 10:35:48 AM »

Many thanks Stefan.

I think I have the wrong names for a few of my Ophrys. I lack the expertise to sort this.

I will change the label.

Neil · « **Reply #37 on:** May 03, 2018, 11:06:45 AM »

Some of you may find this an interesting read

https://academic.oup.com/aob/article/121/1/85/4796793

according to the DNA analysis, there are only 9 Ophrys species.

SteveC2 · « **Reply #38 on:** May 03, 2018, 04:42:59 PM »

Nine seems about right, but my friend now calls me a "Lumpernazi" so I would say that.

sokol · « **Reply #39 on:** May 03, 2018, 08:33:04 PM »

Quote from: Neil on May 03, 2018, 11:06:45 AM

according to the DNA analysis, there are only 9 Ophrys species.

You may believe that I definitely don't.

Other more extensive (and much more expensive) DNA analysis show a high correlation with the biological approach (pollinator).

sjusovare · « **Reply #40 on:** May 05, 2018, 09:34:42 AM »

Except that it depends on which definition of the species you take, the genetic variability inside a species can be greater than the differences between alledged different species... And there's an annoying tendancy among ophrys taxonomists to describe each local form or even lusus as a new species!
Facts remain, there are only 9 or 10 groups among which "species" are fully cross-compatible, cross apifera group with insectifera group, the hybrid's pollen will be sterile (same with spehgodes, same with scolopax)... but individual "species" in each groups are fully cross-breedable, where do we draw the line between local diversity among a species and different species themselves?

Yann · « **Reply #41 on:** May 05, 2018, 10:10:48 PM »

I think that "the splitters" often forget the soil's nature and microclimate give local "species" features.

sphegodes is nice case of variability, all DNA analysis gave the same result.