diff --git a/python/mwmatching.py b/python/mwmatching.py
index 14627ee..dae66b3 100644
--- a/python/mwmatching.py
+++ b/python/mwmatching.py
@@ -388,7 +388,6 @@ class _Blossom:
         # "marker" is a temporary variable used to discover common
         # ancestors in the blossom tree. It is normally False, except
         # when used by "trace_alternating_paths()".
-        # It is also used by "expand_zero_dual_blossoms()".
         self.marker: bool = False
 
     def vertices(self) -> list[int]:
@@ -1305,7 +1304,7 @@ class _MatchingContext:
         by.label = _LABEL_T
         by.tree_edge = (x, y)
 
-        # Assign label S to the blossom that contains the mate of vertex "y".
+        # Assign label S to the blossom that is mated to the T-blossom.
         z = self.vertex_mate[by.base_vertex]
         assert z != -1
         self.assign_label_s(z)