Claytonia lanceolata?
Looks like Ribes speciosum.
Melaleuca nesophila?
Drymocallis convallaria?
Lophostemon confertus has leaves clustered at the branch tips like that.
Kalanchoe marmorata, or a close relative?
Nuttallanthus would have much shorter upper lip relatve to lower lip. Looks like Linaria section Versicolores mixture, sold as L. marocanna.
Pelargonium x domesticum. P. grandiflorum has skinny petals and deeply lobed, grayish green leaves.
#3 Leuchtenbergia principis?
2. A. mellifera
2. Lepidium fremontii?
Yes, Cleome isomeris/Peritoma arborea/Cleomella arborea/Isomeris arborea.
Could be Clarkia purpurea.
3. Prunus fasciculata? 4. Acmispon glaber (formerly Lotus scoparius)
2. Nemophila (parviflora?) 3. Calandrinia ciliata