Hi, Thanks to anyone who helped with my Echinopsis. Here are a couple more unknown cacti. The plants are about 3 inches in size and flowers are about 2 across. The flowers will close and open several times before dying off. They usually open in the cooler parts of the day. i.e. early morning or in the afternoon. Thanks in advance for your help:}
Can't identify them precisely, but if you search for anisitsii or damsii, I think you will find plants that look like no. 1. The other one could be a stenopleurum.