What do the characters on the evidence mean?

Please provide full page of evidence so we can understand the context. What are the characters shown in the evidence meant to represent? They look like a list of rime characters. If so, please provide an image of that shows the literary text where Li Yu uses the character ⿰犭斂.

Also, the character ⿰貝斂 is not encoded and not proposed for encoding. Why propose only ⿰犭斂 and not ⿰貝斂 immediately below it? It makes no sense.

Still no updated evidence.