Leaf development: shape, size and specimen
In brief
Two leaves can be compared by length, but first identify how the measurement was made and which specimens it describes. Open the image and model, check the scale and the provenance of each variant. An altered teaching shape can help explore geometry when clearly distinguished from the measured leaf.
Evidence for this statement
EcoGenesis
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Activity
Open the leaf article and the available measurement model. For two variants, record paired length and width for the same source leaf, units, sample ID and source. Mark thickness and curvature according to their actual status. If only teaching variants are available, record that outcome and leave the measurement requirement incomplete. Preserve variant, model version, camera and selected part.
Evidence for this statement
EcoGenesis
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Self-assessment criterion
Paired measurements describe one leaf at a common scale; measurements and teaching assumptions are separate, with missing measurements noted.
Evidence for this statement
EcoGenesis
Lecture and chapters
The official page and chapter labels were checked. Video language: Russian. Full viewing, exact seek and embedding permission are unverified. Open the original and select the listed chapter.
[1]Publisher chapters · Russian audio
The official page and chapter labels were checked. Video language: Russian. Full viewing, exact seek and embedding permission are unverified. Open the original and select the listed chapter.
Open the original lecture: В. В. Чуб · Молекулярная генетика развития растений- 06:44 · Разметка и инициация листа. Границы примордия
- 17:51 · Форма листа
- 31:42 · Адаксиально-абаксиальная полярность
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Sources and versions
Editorial draft · human review pending
- В. В. Чуб · Молекулярная генетика развития растений
2026-09-19T10:16:31.946633+00:00 · Terms of use on source site
Provenance and original
- Source version
- Page retrieved 2026-09-19
- Original SHA-256
- 90edfd48a2833c6fe75ea7e739e7154ebc52d8d96884fea56f227d1ac9b5c50a
- Source reading scope
- The official page and chapter labels were checked. Video language: Russian. Full viewing, exact seek and embedding permission are unverified. Open the original and select the listed chapter.
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- Content version
- 6c560f6d4819e5e582228cb98ba600ac54f4da170f0d7e4ece2b4655c75a5bcc
- Source version
- learning-routes-20260919@a5d107949f8eaf60d40d7783b99ff049f761951b64be27f597ac15fde658047e
- Updated
- 2026-09-19