Rosacea
Lab dissection
Flower
Corolla removed
Stigma
Anthers
Plate: drawing and observations
Notes
Leaf stipules
Flower has a cup-like receptacle or floral tube called a hypanthium, which develops around the ovary.
Plants in the rose family range from herbs and shrubs to tree.
3.000 species in the rose family from rose hydrid tea to apple tree.
Hybridized for generations.
5 petals.
Stamen attached to the top of the hypanthium.
Spines are leaf derived.
Scientific classification
Règne Plantae
Sous-règne Tracheobionta
Division Magnoliophyta
Classe Magnoliopsida
Sous-classe Rosidae
Ordre Rosales
Famille Rosaceae
Genre
Rosa
L., 1753
Classification APG III (2009)
Ordre Rosales
Famille Rosaceae
Sous-famille Rosoideae
Sources
Botanique, systématique moléculaire, Guignard and Dupont (2005)
The Science behind Flowers, Dick Rauh (2020).
Botany Illustrated. Introduction to Plants, Major Groups, Flowering Plant Families, by Janice Glimn-Lacy and Peter B. Kaufman (2006).
French wikipedia page: https://fr.wikipedia.org/wiki/Rosier
Susannah Graedel's plate.