#21 Mammillaria Polyedra Cactus
Image Credits: Commons.wikimedia
#22 Christmas Cactus
Image Credits: Thespruce
#23 Monk’s Hood Cactus
Image Credits: Worldofsucculents
#24 Old Lady Cactus
Image Credits: Gardentags
#25 Lobivia Cactus
Image Credits: Valentino Vallicelli
#26 Crested Twin Spined Cactus
Image Credits: Flickr
#27 Silver Torch Cactus
Image Credits: Balconygardenweb
#28 Peanut Cactus
Image Credits: Thespruce
#29 Golden Barrel Cactus
Image Credits: Rareplant
#30 Bishop’s Hat Cactus
Image Credits:Â Gardenbeast