Syllabus der Pflanzenfamilien (1892–) by Adolf Engler (1844–1930) is a complete revision of plant families down to generic level and often even further.
[1] As such it forms part of the Engler system of plant taxonomy.
[2] His modified Eichler schema first appeared in 1886 in his Guide to Breslau Botanic Garden[3] (of which he was the director) and was expanded in his Syllabus in 1892.
Review of previous systems p. xvii Schema p. xx The main groups of plants are shown here with page numbers in (parentheses) and some corresponding volumes in Die Natürlichen Pflanzenfamilien in [square brackets], however there are changes between editions: Review of previous systems p. xxi From schema and index (pp.
xxiv-xxv)[6] 6 classes (p. 70) 2 classes (p. 75) 11 orders 2 subclasses (p. 106) Index (p. 215) 11 orders (Reihe) 4 suborders 6 suborders 3 suborders (Unterreihe)[7] 9 families In modern classifications, Engler's divisions I - XI are not considered plants but are classified in other groups (although some botanists do accept Engler's divisions VII and VIII, the "green algae", as plants).