2 of 14 checkable references need attention · checked 2026-07-22
At the dated check, the references listed below either did not resolve in
Crossref or DataCite, or carried a retraction notice. Each one is shown with the
registry record that put it there.
20 without a DOI — not checked. A reference
deposited without a DOI is never matched by title or guessed at; it stays outside the checked
set, and this line discloses that.
Leaf architecture and epidermal characters in Zelkova, Ulmaceae
The 20 references without a DOI — listed, not checked
no DOI — not checkedLes Chênes. Monographie du genre Quercus.
no DOI — not checkedThe evolution and classification of flowering plants
no DOI — not checkedWorld checklist and bibliography of Fagales (Betulaceae, Corylaceae, Fagaceae and Ticodendraceae)
no DOI — not checkedStratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North Dakota
no DOI — not checkedA revised classification of the architecture of dicotyledonous leaves
no DOI — not checkedStudies on the floral morphology and phylogeny of the Amentiferae
no DOI — not checkedOn macroscopic structures of the Fagaceous woods in Kwangtung in relation to classification and distribution
no DOI — not checkedCyclobalanopsis
no DOI — not checkedLeaf architecture and systematics of the Hamamelidaceae sensu lato
no DOI — not checkedOaks of Asia
no DOI — not checkedOrigins of Fagaceae
no DOI — not checkedPreliminary phylogenetic reconstruction of Quercus at subgeneric and sectional level
no DOI — not checkedDie Eichen des extratropischen Ostasiens und ihre pflanzengeographische Bedeutung
no DOI — not checkedThe leaf architecture and its taxonomic significance in the genera Albizia and Cylindrokelupha from China
no DOI — not checkedFlowering plants: origin and dispersal
no DOI — not checkedPollen morphology of Cyclobalanopsis and its relation to Quercus
no DOI — not checkedA dictionary of the flowering plants and ferns
no DOI — not checkedLeaf architecture of the woody dicotyledons from tropical and subtropical China
no DOI — not checkedImplication of the leaf architecture for systematic studies of Chloranthaceae from China
no DOI — not checkedTaxonomical and evolutionary implications of the leaf anatomy and architecture of Quercus L. subgenus Quercus from China
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-22 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.