protected Root(IEnumerable <IPlantCell> cells, IEnumerable <Root> connectedRoots, int branchCount) : base(cells, connectedRoots, branchCount) { PartType = PlantPartType.Root; }
protected Stem(Internode internode, int branchCount) : base(new IPlantCell[0], new [] { internode }, branchCount) { PartType = PlantPartType.Stem; Internode = internode; }