(b) Consists of:
- E = Excerpta Florentina. 15th century.
- e = Excerpta Gyraldina. 16th century.
Each of them resembles the other closely and both come from a common parent.
Under (b) may further be mentioned the Basel edition of Isengrin (1534), which preserves an independent tradition.
Birt postulates an archetype (Ω), dating between 6th and 9th centuries, and two main “streams,” x and y; y being again subdivided into w and z.
The following is the family “tree.” Letters enclosed in brackets refer to non-existent MSS.
Of class (2) may be mentioned:
- S = Cod. Parisinus lat. 15,005. 13th or 14th century.
- C = Cod. Cantabrigiensis coll. corp. Christi 228. 13th century.
- D = Cod. Musei Britannici 6042. 13th century.
- W = Cod. Antverpiensis iii. 59. 12th or 13th century.
- F = Cod. Florentinus bibl. St. Crucis. 12th century.
- A, B = Codd. Oxonienses Bodleiani. (?) 13th century.
- V = Cod. Antverpiensis N. 71. 14th century.