diff --git a/src/minecraft/forestry/api/apiculture/IBeeMutation.java b/src/minecraft/forestry/api/apiculture/IBeeMutation.java
index 970aeda73..271e728dd 100644
--- a/src/minecraft/forestry/api/apiculture/IBeeMutation.java
+++ b/src/minecraft/forestry/api/apiculture/IBeeMutation.java
@@ -5,5 +5,14 @@ import forestry.api.genetics.IGenome;
 import forestry.api.genetics.IMutation;
 
 public interface IBeeMutation extends IMutation {
-	int getChance(IBeeHousing housing, IAllele allele0, IAllele allele1, IGenome genome0, IGenome genome1);
+	
+	/**
+	 * @param housing
+	 * @param allele0
+	 * @param allele1
+	 * @param genome0
+	 * @param genome1
+	 * @return float representing the chance for mutation to occur. note that this is 0 - 100 based, since it was an integer previously!
+	 */
+	float getChance(IBeeHousing housing, IAllele allele0, IAllele allele1, IGenome genome0, IGenome genome1);
 }
diff --git a/src/minecraft/forestry/api/apiculture/IBeekeepingMode.java b/src/minecraft/forestry/api/apiculture/IBeekeepingMode.java
index b3c86293e..4a3d72d1a 100644
--- a/src/minecraft/forestry/api/apiculture/IBeekeepingMode.java
+++ b/src/minecraft/forestry/api/apiculture/IBeekeepingMode.java
@@ -33,6 +33,22 @@ public interface IBeekeepingMode extends IBeeModifier {
 	 */
 	boolean isFatigued(IBee queen);
 
+	/**
+	 * @param queen
+	 * @param housing
+	 * @return true if the queen is being overworked in the bee housing (with chance). will trigger a negative effect.
+	 */
+	boolean isOverworked(IBee queen, IBeeHousing housing);
+
+	/**
+	 * 
+	 * @param queen
+	 * @param offspring
+	 * @param housing
+	 * @return true if the genetic structure of the queen is breaking down during spawning of the offspring (with chance). will trigger a negative effect.
+	 */
+	boolean isDegenerating(IBee queen, IBee offspring, IBeeHousing housing);
+
 	/**
 	 * @param queen
 	 * @return true if an offspring of this queen is considered a natural
@@ -45,4 +61,5 @@ public interface IBeekeepingMode extends IBeeModifier {
 	 */
 	boolean mayMultiplyPrincess(IBee queen);
 
+
 }
diff --git a/src/minecraft/forestry/api/arboriculture/IToolGrafter.java b/src/minecraft/forestry/api/arboriculture/IToolGrafter.java
index d5840a99d..97aea1adc 100644
--- a/src/minecraft/forestry/api/arboriculture/IToolGrafter.java
+++ b/src/minecraft/forestry/api/arboriculture/IToolGrafter.java
@@ -1,5 +1,6 @@
 package forestry.api.arboriculture;
 
+import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.ItemStack;
 import net.minecraft.world.World;
 
@@ -14,5 +15,5 @@ public interface IToolGrafter {
 	 * @param z
 	 * @return
 	 */
-	float getSaplingModifier(ItemStack stack, World world, int x, int y, int z);
+	float getSaplingModifier(ItemStack stack, World world, EntityPlayer player, int x, int y, int z);
 }
diff --git a/src/minecraft/forestry/api/arboriculture/ITreeBreedingManager.java b/src/minecraft/forestry/api/arboriculture/ITreeBreedingManager.java
index af9e86552..76cf23422 100644
--- a/src/minecraft/forestry/api/arboriculture/ITreeBreedingManager.java
+++ b/src/minecraft/forestry/api/arboriculture/ITreeBreedingManager.java
@@ -1,6 +1,7 @@
 package forestry.api.arboriculture;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Random;
 
 import net.minecraft.world.World;
@@ -34,4 +35,8 @@ public interface ITreeBreedingManager {
 
 	IAllele[] getRandomTreeTemplate(Random rand);
 
+	void registerTreeMutation(ITreeMutation mutation);
+
+	Collection<ITreeMutation> getMutations(boolean shuffle);
+
 }
diff --git a/src/minecraft/forestry/api/arboriculture/ITreeMutation.java b/src/minecraft/forestry/api/arboriculture/ITreeMutation.java
index efc46a814..2870c39a9 100644
--- a/src/minecraft/forestry/api/arboriculture/ITreeMutation.java
+++ b/src/minecraft/forestry/api/arboriculture/ITreeMutation.java
@@ -6,5 +6,17 @@ import forestry.api.genetics.IGenome;
 import forestry.api.genetics.IMutation;
 
 public interface ITreeMutation extends IMutation {
-	int getChance(World world, int x, int y, int z, IAllele allele0, IAllele allele1, IGenome genome0, IGenome genome1);
+	
+	/**
+	 * @param world
+	 * @param x
+	 * @param y
+	 * @param z
+	 * @param allele0
+	 * @param allele1
+	 * @param genome0
+	 * @param genome1
+	 * @return float representing the chance for mutation to occur. note that this is 0 - 100 based, since it was an integer previously!
+	 */
+	float getChance(World world, int x, int y, int z, IAllele allele0, IAllele allele1, IGenome genome0, IGenome genome1);
 }
diff --git a/src/minecraft/forestry/api/arboriculture/TreeManager.java b/src/minecraft/forestry/api/arboriculture/TreeManager.java
index e6f9faee3..dfd6d00ff 100644
--- a/src/minecraft/forestry/api/arboriculture/TreeManager.java
+++ b/src/minecraft/forestry/api/arboriculture/TreeManager.java
@@ -1,15 +1,7 @@
 package forestry.api.arboriculture;
 
-import java.util.ArrayList;
-
 public class TreeManager {
 	public static int treeSpeciesCount = 0;
 	public static ITreeInterface treeInterface;
 	public static ITreeBreedingManager breedingManager;
-
-	/**
-	 * List of possible mutations on fruit alleles.
-	 */
-	public static ArrayList<ITreeMutation> treeMutations = new ArrayList<ITreeMutation>();
-
 }
diff --git a/src/minecraft/forestry/api/core/EnumTemperature.java b/src/minecraft/forestry/api/core/EnumTemperature.java
index 8722cb044..4051c3a12 100644
--- a/src/minecraft/forestry/api/core/EnumTemperature.java
+++ b/src/minecraft/forestry/api/core/EnumTemperature.java
@@ -48,6 +48,11 @@ public enum EnumTemperature {
 		return this.name;
 	}
 
+	@SideOnly(Side.CLIENT)
+	public Icon getIcon() {
+		return ForestryAPI.textureManager.getDefault(iconIndex);
+	}
+
 	public static ArrayList<Integer> getBiomeIds(EnumTemperature temperature) {
 
 		switch (temperature) {
diff --git a/src/minecraft/forestry/api/core/ForestryAPI.java b/src/minecraft/forestry/api/core/ForestryAPI.java
index d673ac6e6..8d807b051 100644
--- a/src/minecraft/forestry/api/core/ForestryAPI.java
+++ b/src/minecraft/forestry/api/core/ForestryAPI.java
@@ -9,4 +9,5 @@ public class ForestryAPI {
 
 	@SideOnly(Side.CLIENT)
 	public static ITextureManager textureManager;
+	
 }
diff --git a/src/minecraft/forestry/api/core/ITextureManager.java b/src/minecraft/forestry/api/core/ITextureManager.java
index 7fc324e7c..1849d1b13 100644
--- a/src/minecraft/forestry/api/core/ITextureManager.java
+++ b/src/minecraft/forestry/api/core/ITextureManager.java
@@ -11,4 +11,5 @@ public interface ITextureManager {
 
 	Icon getIcon(short texUID);
 
+	Icon getDefault(String ident);
 }
diff --git a/src/minecraft/forestry/api/farming/IFarmLogic.java b/src/minecraft/forestry/api/farming/IFarmLogic.java
index f8c2b00d4..ef2d48519 100644
--- a/src/minecraft/forestry/api/farming/IFarmLogic.java
+++ b/src/minecraft/forestry/api/farming/IFarmLogic.java
@@ -27,5 +27,7 @@ public interface IFarmLogic {
 	@SideOnly(Side.CLIENT)
 	Icon getIcon();
 
+	String getTextureSheet();
+	
 	String getName();
 }
diff --git a/src/minecraft/forestry/api/genetics/IMutation.java b/src/minecraft/forestry/api/genetics/IMutation.java
index d6d6c7068..290f68627 100644
--- a/src/minecraft/forestry/api/genetics/IMutation.java
+++ b/src/minecraft/forestry/api/genetics/IMutation.java
@@ -40,7 +40,7 @@ public interface IMutation {
 	/**
 	 * @return Unmodified base chance for mutation to fire.
 	 */
-	int getBaseChance();
+	float getBaseChance();
 
 	/**
 	 * @param allele