342 



Division of Forestry. 



[Bull. 165 



PLATE 



Catalpa kcempferi Sieb. & Zucc. Seeds, natural size. This particular tree 

 possibly a hybrid with one of the American species. 



planter the essential thing is to avoid Catalpa kwmpferi, 

 C. catalpa, or their hybrids, or the so-called hybrids of C. ca- 

 talpa and C. speciosa, and so far as possible to confine his for- 

 est to trees most near to the best type of Catalpa speciosa. 

 Great carelessness is said to exist in the trade in the matter 

 of distributing pure seed of C. speciosa. For the benefit of pro- 

 spective catalpa growers without special botanical knowledge, 

 a few salient characters may be seized upon to distinguish the 

 species in question. In the first place, the fact that C. speciosa 

 blooms about two weeks earlier than C. catalpa, bears larger 

 and showier flowers, feweV in cluster, will usually be a safe 



