1 Give trimmed plants a thorough soaking and a boost with a high-potash fertiliser, such as tomato feed. 2  Geraniums are fairly trouble free although they can be attacked by vine weevil larvae, slugs and snails. 3  Also, in dry conditions, they may suffer from powdery mildew.
The stipula is a scale which forms the future bud, and is situated at the insertions of the leaf. - The thorn, acculeus, is a sharp brittle point, which is so slightly fastened to the plant, as to be taken off without tearing the other parts.
The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.ost commonly anthers are two-lobed and are attached to the filament either at the base or in the middle portion. The sterile tissue between the lobes is called the connective. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte.