a person in the record
Carl Nägeli
Swiss botanist1817 to 1891
Wikidata names Alphonse Pyramus de Candolle and Oswald Heer as doctoral advisors, lists 3 doctoral students, names Oswald Heer as teacher, and lists 1 person they taught. Linked to Wikidata, Mathematics Genealogy Project, and 5 other registers.

How to read the marksstated by Wikidata or indexed by OpenAlex
Advisors on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
Students on Wikidata3
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1831
- stated by Wikidataborn 1840
- stated by Wikidataborn 1871
Teachers and mentors1
Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.
- a teacher or mentor, stated by Wikidata: not a thesis supervision
Taught1
Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.
- a teacher or mentor, stated by Wikidata: not a thesis supervisionborn 1831
The line above and below2 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataAlphonse Pyramus de Candollestated by WikidataOswald Heer
- 2 steps up
stated by WikidataChristian Ludwig Nitzschstated by WikidataErnst Friedrich Germarstated by WikidataKurt Sprengel
Below them, within 3 steps, the record reaches 5 people: 5 stated by Wikidata.
Education and career6
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undatedstudied
- undatedstudied
- undatedworked
- undatedworked
- undatedworked
- undatedworked