 |
The main bryos here are Ceratodon purpureus, Fissidens
adianthoides, Pseudoscleropodium purum, Barbula convoluta
var. convoluta,
Trichostomum crispulum, Didymodon fallax,
& Encalypta
streptocarpa |
My adventures today involved walking Alfie for 20 minutes over a slag tip at Mynydd Lliw (30m asl!) SN597007, which is less than 2km from the house, this being an area that I'd already looked at last year. I did manage to add an extra six species to SN50V taking it to 82 species, one of which was
Ctenidium molluscum. I have been logging my records of this species as var.
molluscum based on this being the default, but in reality I don't look for the other var's. In order that we all record consistently I thought I'd raise this issue which also relates to a number of other taxa. Perhaps we can deal with them individually or as a list. In the case of
Ctenidium molluscum I'm inclined to simply record it as the binomial unless there's a good reason to do otherwise?
Given all the calcicoles, perhaps I'd better check the Ceratodon more closely!, although the patches were fairly discreet.
ReplyDeleteI did wonder about the Ceratodon Barry, though with slag tips I'm sure you get some unlikely bedfellows.
ReplyDeleteAs you say, there are a few inconsistencies in the way we've recorded (in MapMate) some of the species with a number of vars, e.g. A. serpens, Zygodon spp. It would be good to standardise this to save later editing.
I agree we need a consistent approach, especially because I believe that mass-edits are difficult on MapMate (they certainly were on Recorder, which is one reason I gave up on it). I would say that all Ctenidium in normal Ctenidium places - ie calcareous grassland, spoil etc is var molluscum; woodland specimens are troublesome because of "the woodland taxon" or var sylvaticum, which I still haven't understood perhaps because of typos in Smith ed 2; upland crag specimens are again troublesome because var condensatum seems distinct but it's hard to say why (again Smith ed 2 is hard to decipher). Var robustum seems distinctive but is very rare; var fastigiatum is rather more dubious. Basically record as var molluscum unless there's good reason to do otherwise.
ReplyDeleteWould anyone like to volunteer a list of MapMate names that I can then advise us all on?!
I'll set up a tab we can refine then use for reference
ReplyDelete