Plagiochasma rupestre

A liverwort at Majura, ACT

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Identification history

	Plagiochasma rupestre	13 Jul 2021	Heino1
	Unidentified	9 Jul 2021	JaneR

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User's notes

liverwort, with structures

4 comments

Heino1 wrote:

13 Jul 2021

Very nice to see this. The second record for the ACT - and a long way from the other location.

JaneR wrote:

13 Jul 2021

how exciting !
Can you explain what the structure are ?
and why this photo looks so very different from the other record (I would have thought completely different species)

Heino1 wrote:

14 Jul 2021

Here (https://www.anbg.gov.au/bryophyte/photos-captions/plagiochasma-rupestre-03.html) you see another colony of this liverwort. Along the long central axis of each strap-like thallus you can see a few larger, whitish dots. These are clusters of protective scales over the areas that will develop into female or male receptacles - sperm being produced within the male and eggs within the female. Here (https://www.anbg.gov.au/bryophyte/photos-captions/plagiochasma-rupestre-01.html) is a closer view of one thallus and here (https://www.anbg.gov.au/bryophyte/photos-captions/plagiochasma-rupestre-02.html) you can see some slightly raised and knobbly receptacles. Once fertilized the eggs will develop into spore capsules, the capsules held within complex structures. In your sighting the large and brighter green spore capsule structures are already well on the way - not the case in the other sighting.

JaneR wrote:

14 Jul 2021

thank you

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