diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index 9f96cc35..43db2f21 100644
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -967,7 +967,7 @@ end
 function default.register_decorations()
 	minetest.clear_registered_decorations()
 
-	-- Apple tree
+	-- Apple tree and log
 
 	minetest.register_decoration({
 		deco_type = "schematic",
@@ -988,7 +988,33 @@ function default.register_decorations()
 		flags = "place_center_x, place_center_z",
 	})
 
-	-- Jungle tree
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"default:dirt_with_grass"},
+		sidelen = 80,
+		fill_ratio = 0.0015,
+		biomes = {"deciduous_forest"},
+		y_min = 1,
+		y_max = 31000,
+		schematic = {
+			size = { x = 3, y = 3, z = 1},
+			data = {
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "default:tree", param2 = 12, prob = 191 },
+				{ name = "default:tree", param2 = 12 },
+				{ name = "default:tree", param2 = 12, prob = 127 },
+				{ name = "air", prob = 0 },
+				{ name = "flowers:mushroom_brown", prob = 63 },
+				{ name = "air", prob = 0 },
+			},
+		},
+		flags = "place_center_x",
+		rotation = "random",
+	})
+
+	-- Jungle tree and log
 
 	minetest.register_decoration({
 		deco_type = "schematic",
@@ -1003,7 +1029,33 @@ function default.register_decorations()
 		rotation = "random",
 	})
 
-	-- Taiga and temperate coniferous forest pine tree
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"default:dirt_with_grass", "default:dirt"},
+		sidelen = 80,
+		fill_ratio = 0.01,
+		biomes = {"rainforest", "rainforest_swamp"},
+		y_min = 1,
+		y_max = 31000,
+		schematic = {
+			size = { x = 3, y = 3, z = 1},
+			data = {
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "default:jungletree", param2 = 12, prob = 191 },
+				{ name = "default:jungletree", param2 = 12 },
+				{ name = "default:jungletree", param2 = 12, prob = 127 },
+				{ name = "air", prob = 0 },
+				{ name = "flowers:mushroom_brown", prob = 127 },
+				{ name = "air", prob = 0 },
+			},
+		},
+		flags = "place_center_x",
+		rotation = "random",
+	})
+
+	-- Taiga and temperate coniferous forest pine tree and log
 
 	minetest.register_decoration({
 		deco_type = "schematic",
@@ -1024,7 +1076,33 @@ function default.register_decorations()
 		flags = "place_center_x, place_center_z",
 	})
 
-	-- Acacia tree
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"default:dirt_with_snow", "default:dirt_with_grass"},
+		sidelen = 80,
+		fill_ratio = 0.003,
+		biomes = {"taiga", "coniferous_forest"},
+		y_min = 1,
+		y_max = 31000,
+		schematic = {
+			size = { x = 3, y = 3, z = 1},
+			data = {
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "default:pine_tree", param2 = 12, prob = 191 },
+				{ name = "default:pine_tree", param2 = 12 },
+				{ name = "default:pine_tree", param2 = 12, prob = 127 },
+				{ name = "air", prob = 0 },
+				{ name = "flowers:mushroom_red", prob = 127 },
+				{ name = "air", prob = 0 },
+			},
+		},
+		flags = "place_center_x",
+		rotation = "random",
+	})
+
+	-- Acacia tree and log
 
 	minetest.register_decoration({
 		deco_type = "schematic",
@@ -1046,6 +1124,36 @@ function default.register_decorations()
 		rotation = "random",
 	})
 
+	minetest.register_decoration({
+		deco_type = "schematic",
+		place_on = {"default:dirt_with_dry_grass"},
+		sidelen = 16,
+		noise_params = {
+			offset = 0,
+			scale = 0.001,
+			spread = {x = 250, y = 250, z = 250},
+			seed = 2,
+			octaves = 3,
+			persist = 0.66
+		},
+		biomes = {"savanna"},
+		y_min = 1,
+		y_max = 31000,
+		schematic = {
+			size = { x = 3, y = 2, z = 1},
+			data = {
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "air", prob = 0 },
+				{ name = "default:acacia_tree", param2 = 12, prob = 191 },
+				{ name = "default:acacia_tree", param2 = 12 },
+				{ name = "default:acacia_tree", param2 = 12, prob = 127 },
+			},
+		},
+		flags = "place_center_x",
+		rotation = "random",
+	})
+
 	-- Large cactus
 
 	minetest.register_decoration({