All textures not specifically listed here are created by FaceDeer and released under both the MIT license and under the Creative Commons CC0 license.

dfcaverns_blood_thorn - derived from default cactus
dfcaverns_black_cap	- derived from default coal block
dfcaverns_goblin_cap 	- derived from default red coral
dfcaverns_nether_cap_stem - derived from default red coral
dfcaverns_tower_cap 	- derived from default dead coral
dfcaverns_tunnel_tube	- derived from moretrees palm tree bark
dfcaverns_tower_cap_gills - from caverealms mushroom gills
dfcaverns_spore_tree_spores - derived from farming wheat seed