OK, this is only for the specialist, but there are lessons here for any fellow VCRs reading this.
N.B. The specimen descriptions have now been updated on the herbariaunited database.
herbariaunited.org/specimen/276998/ University of Birmingham Vaccinium uliginosum
The herbarium sheet gives location as mountain near Luib. This has been catalogued as Luib, Skye but this species has never been recorded in VC104.
However, Luib, Stirling in NN42 is in the centre of the known distribution for this species.
This specimen was collected in July 1876.
There are three other specimens from Luib in July 1876 all also in the University of Birmingham Herbarium:
herbariaunited.org/specimen/273718/ Saxifraga hypnoides presented by Mr Langley Kitching
herbariaunited.org/specimen/266217/ Pedicularis palustris presented by Mr Langley Kitching
herbariaunited.org/specimen/258930/ Polystichum lonchitis presented by Mr Langley Kitching
The first two of these just say Luib (handwritten) as per the Vaccinium specimen but the last says Luib (Ross & Cromarty). Is this a later assumption? And why say Ross & Cromarty rather than Skye?
These three are eminently possible in Skye or Stirling.
As well as the above three, there is one further specimen by Langley Kitching, supposedly from VC104:
herbariaunited.org/specimen/277494/ Linnaea borealis from “Top of Glen Dale, Island of Skye (?)”
This is unlikely on distributional grounds.
On balance I suggest all five of these specimens are unlikely to have come from Skye.
Which leads me to:
herbariaunited.org/specimen/276623/ catalogued as Festuca ovina from Luib.
The sheet appears to say Uig not Luib and the collector, E. F. Linton was certainly in Uig on 6 Aug 1884, the date of the specimen – as is known from specimens in other herbaria.
Also, it was originally described as Festuca glauca which would place it within F. rubra rather than F. ovina – and as far as one can tell from the image it probably is F. rubra.
All this makes me realise that I should spend some time looking at the other specimens assigned to VC 104 in Herbariaunited.