Do we want to include labels as these are typically a given for any digitization process. I thought the focus was on all the other ancillary sources...

I think these could be merged into one. They are typically managed together and the kinds of source materials are similar. How about "Plant material: Dried on sheets or in packets; on slides"

Agreed. Need to tease this out below but likely worth saying that we include both imaging and data capture here.

Not sure what you mean by this? = I take a GPS reading or I put a big "X" on a map or I write it down in my field notebook...?

Instead of this it may be interesting to ask in each case if they are submitted digitally. Gives a sense of "modern" source material and how relevant digital source is becoming...