care is exercised in selecting the seed-trees. The trees from 

 which seed is to be gathered should be individuals of good form 

 that have made a satisfactory growth and that bear the character- 

 istic markings of the Catalpa speciosa. 



In the United States there are two native species, the Catalpa 

 speciosa (Warder), commonly known as the "hardy catalpa" be- 

 cause of its supposed ability to endure without injury a greater 

 degree of cold than the other species, and the Catalpa catalpa 

 (Karst), usually spoken of as the "common catalpa." Both of 

 these species are found attaining to tree size and form in Kansas. 

 The following characteristics will serve to identify these species: 



POINTS OF IDENTIFICATION. 



Catalpa speciosa. 



Seed-pods from seven to twenty inches in length. The walls 

 of the seed-pods are thick and strong, growing singly, in pairs, or 

 occasionally three in a cluster, rarely more than three in a cluster. 



Seeds one-third as broad as long. Broad brush of hairs at 

 either end with fringe of hairs extending well along the ventral 

 side. 



Bark on old stems deeply furrowed, but never peeling off in 

 scales. 



Trunk of trees comparatively straight, seldom dividing into two 

 or more branches of about equal size. 



Catalpa catalpa. 



Seed-pods from six to eighteen inches in length, walls of seed- 

 pods not thick and strong. Pods quite numerous, from five to fif- 

 teen in a cluster. 



Seeds fully as long as the seed of the Catalpa speciosa, but much 

 narrower, the hairs at either end of the seed forming a narrow 

 brush or pencil, but never extending along the ventral side of the 

 seed. 



Bark even on the older stems thin and light, falling off in light 

 scales, never deeply furrowed. 



Trunks usually divided into two or more branches of about equal 

 size. 



The characteristic markings of the seed are the best means of 

 identification. Only very wide seeds with a broad brush of hairs 

 at either end and a fringe of hairs along the ventral edge should be 

 accepted as pure, hardy catalpa seed. 



The hardy catalpa hybridizes readily with the other species and 

 consequently there is danger of getting inferior seed even from 



