1 philodendron erubescens could be hyb 22A Philodendron sp.

The combination of a spathe and a spadix (which is often referred
to as a flower) is a distinguishing feature of all members of
the Aroid family.

2 Amorphyllus titanum 56Amorphyllus titanum ;
3 Caladium 'Hue of Pink'Caladium ‘Hue of Pink’

Members of this family include Aglaonemas Alocasias & Colocasias Amorphophallus
Caladiums Dieffenbachias Monstera Philodendrons Spathiphyllums Syngoniums Anthuriums Cercestis

4 Anthurium andreanum 0Anthurium andreanum spp.