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Dear Ralph, nr 2 is without doubt G. versicolor, the leaves should have reddish color markings in the nodes. nr 8 looks like one of many G x oxonianum hybrids.Here are two species which are flowering for me now:Geranium psilostemon has really big flowers, approximately 4cm in diameter.
Of Ralph pictures, I would suggest also 3,4 and 5 are some of x oxonianum hybrids.
Pelargonium gibbosum, a wonderfully night-scented species, but a bit of a sprawling plant that needs space/support.