The viewing of the cases 17, 18, and 19 allows the visitor to discover the multitude of plants that can be used for obtaining textile fibers: beside flax, hemp, and cotton, which are well-known in Romania, there are exposed textile fibers obtained from plants like Agave, Aloe, palms for fibers, as are: Borassus flabellifer, Attalea funifera or the coconut tree.
In case 20 there are shown products of Romanian or foreign origin, used in home activities, and that are manufactured from natural raw materials.
Another valuable collection is the dendrological one. It exposes in its 5 cases (21-25) approximately 450 samples, i.e. transversal sections through indigenous essences (yew, fir tree, maple tree, juniper, sweet cherry tree, sumac, walnut tree, tamarack, etc.) as well as exotic ones (coconut tree, eucalyptus, ebony, carob, cedar, camphor tree, etc.).
Case 27 displays products manufactured in the houses of the peasants of the Moţilor Region (trugs, wash tubs, alphorns, etc.), a household typical for the region of Câmpulung-Moldovenesc, in which there are shown the multiple uses of wood beside other products obtained after wood processing: writing paper obtained from the leaves of the palm Borassus flabellifer, rubber from Hevea brasiliensis, etc.
A series of cases contains abnormal growths determined by the attack of some viruses, fungi, insects, or even plants (the so-called teratological cases), on trunks, branches, flowers, or fruit.
The presentation of plants according to their economic importance ends with the seed collection of woody and grassy plants of autochthonous or exotic origin.