Title from incipit (leaf a2r): INCIPIT PROLOGUS IN LIBRUM QUI INTITULATUR ARBOR VITE CRUCIFIXE JESU. ET DICITUR OPUS UBERTINI DE CASALI. QUI FUIT FRATER PROFESSUS ORDINIS MINORUM BEATI FRANCISCI.
Colophon (leaf H4v): Liber qui intitulatur Arbor vite crucifixe Jesu devotissimi fratris Ubertini de Casali ordinis minoru[m] felicit[er] explicit. Impressus Venetiis p[er] Andrea[m] de Bonettis de Papia. Anno .M.CCCC.LXXXV. Die .xii. Martii. Joa[n]ne Mocenico inclyto principe regnante.
Printed in type 7:77R.
Collation: a-z A⁸ B¹² C-G⁸ H⁶: 250 leaves, leaves a1, B12, and H6 blank.
Paper format: Chancery folio
Sheppard describes differences in setting up of sheet b4.
Spaces left for initials.
Tabula and register on leaf H5.
PML missing 2 leaves: a1 and H6 (blanks).
PML copy leaf dimensions: 25.9 x 19.3 cm.
Hand decoration: Rubrication unrealized. Annotations: Contemporary marginal notations in an Italian hand on a few leaves in quires k-l. Manuscript title on bottom edge.