Sentence:  Depending on the university, up to three different fees could be payable: fees for registration in the general rectoral <WSD>matricula</WSD>, in the faculty <WSD>matricula</WSD>, and, if there were university nations, in their <WSD>matriculae</WSD> as well  — this being payment for the documentary and social act of admission to the university and its sectional parts. 
Meaning of the word marked with <WSD> tags:  A register of students who are enrolled.