Lichenes Neotropici, K. Kalb [1 - 627]
The last numbers are no. 626 and 627 (!). Material of no. 626 and 627 is present in M; labels are printed in the booklet with the title "Fascikel XV (No. 601-625)". see also http://fschumm.de/Archive/Vol11_Kalb%20Lichenes%20Neotropici%20XV.pdf

    There are no exsiccati numbers in database