Androecium-flower Flashcards
androecium and its unit
male reproductive organ
stamen
parts of stamen
anther
lobes (bilobed )
filament
connective
describe lobe of anther
each lobe has 2 sporangia
anther ->tetrasporangiate
describe anther and its exception and what is it called if its sterile
dithecous
monothecous ->in malvacea family (cotton , china rose , bhindi)
staminode if sterile
can stamen be of different lengths , if yes then give example with their names
yes , in cruciferae (mustard )-> tetradynamous in lamiceae(Tulsi, salvia)->Didymous
discuss when stamens are in free and united condition
stamens free- polyandrous stamens united-androus (adelphous ) monadelphous diadelphous polyadelphus
monoadelphus
all stamens in 1 bundle
china rose
staminal tube and stamens
diadelphous
stamens arranges in 2 bundles (9 + 1 arrangement )
fabaceae family
polyadelphous
arranged in more than 2 bundles
eg. citrus fruits
when anthers are fused but filament is not
Syngenaceous compositae family (sunflower )
entire stamen is fused
Synandrous
eg-Cucurbitaceae(cucumber )
when stamen attached with other whorls
Adhesion
types of Adhesion
Epiphyllous
Epipetalous
Epipetalous
stamen attached with petals
Solanacea (potato,tomato,brinjal , tobacco)
Epiphyllous
when calyx and corolla present but not differentiated->perianth ->unit is Tepal
stamen with tepal
liliacea(garlic,onion , lily)
