Archive for December, 2021

Moths 2021

December 29, 2021

I added 31 moth species to the list for my home location in 2021, taking the total to 232. Most years I have been away for much of September, but this year it was October. I had thought that this might mitigate the quite large drop in species numbers from August to September, but in fact, the drop is even greater after this year’s records are added in.

It was a good year for me for micromoths, with much help from Nigel Richards, Mark Young and others. I am also grateful to Keith Sadler, the County Moth Recorder, and many others who have helped with identifications.

Update: Keith confirms that these micromoths I recorded in 2021 were all new to the vice-county: Bucculatrix nigricomella (Daisy Bent-wing), Nematopogon schwarziellus (Sandy Long-horn), Glyphipterix forsterella (Sedge Fanner) and Bryotropha boreella (Mountain Groundling).

Cotoneasters

December 10, 2021

Several fellow-botanists (Joanna, Neil, Seth, Steve) have been looking at Cotoneasters for me, in particular those in the C. bullatus/rehderi group. I had been told that the fruit length was diagnostic and as our plants pretty much all have fruits in the 9-10(-11) mm range, I started to believe that they are all C. rehderi (Bullate Cotoneaster). This size is outside the range given for C. bullatus fruit size in all the (numerous) reference works I have consulted.

However, the petiole length, leaf sizes, both length and width, and pubescence pretty much all fit within the range of C. bullatus (Hollyberry Cotoneaster) and the keys to separate these two species in the European Garden Flora, the book Cotoneasters: A Comprehensive Guide to Shrubs for Flowers, Fruit, and Foliage, and Sell & Murrell’s Flora of Great Britain and Ireland all use leaf size and not fruit size.

So…… it seems that what we have is C. bullatus with larger than reported fruits. Seth had a discussion with a long-term professional gardener on Skye who says that C. rehderi is generally unavailable as it is not on the ‘trading circuit’ whereas C. bullatus has been for years.

During this exercise we have also found what looks to be C. lacteus (Late Cotoneaster) by a forestry track near Portree. If confirmed, this will be the first record in the wild north of the Central Belt.

Later: Not confirmed. Probably atypical C. frigidus. Later still: Now confirmed by the BSBI Cotoneaster referee as Cotoneaster serotinus (Yuletide Cotoneaster). First for Scotland!

Cotoneaster serotinus (Yuletide Cotoneaster)

Additionally, we have found it appropriate to have another look at Stranvaesia davidiana (Stranvaesia) as we may have it in at least one more location than currently shown on the distribution map.

And as a final twist, our friendly gardener suggests that the majority of what we think is Cotoneaster frigidus (Tree Cotoneaster) is a cultivar known as ‘Cornubia’, the main difference being that true C. frigidus is deciduous whereas ‘Cornubia’ is largely evergreen