PRIMULA CONFERENCE. 



179 



flowers and large flower-trusses, particularly in the microform 

 P. heterodonta, Franch., suggest value. 



Japanese Species of the Cunei folia Section. 

 P. cunei folia, Ledeb. 

 P. hakusanensis, Franch. 

 P. heterodonta, Franch. 

 P. nipponica, Yatabe 



Section Macrocarpa. 



The section includes species of the facies of those of the Cuneifolia 

 section, but whilst there the capsule is included within the calyx at 

 time of dehiscence, here it projects far beyond as a cylindric box. 

 P. macrocarpa, Maxim., is the rarest of Japanese species and is endemic. 

 It has not horticultural merit, but botanically it has interest as repre- 

 sentative of a section which has developed in N.-W. China in forms 

 like P. Hemsleyi, Petitm. 



Japanese Species of the Macrocarpa Section. 

 P. macrocarpa, Maxim. 



Section Candelabra. 



Of the species included in this section P. japonica, A. Gray, is the 

 only Japanese one, and it has been known longest to botanists and 

 horticulturists alike. It became a denizen of our gardens in 1871 

 through the enterprise of Mr. Bull. The finest hardy Primula of 

 its time, it still holds place in the foremost rank of cultivated forms 

 despite the inflow of the many new species of recent years. Of its 

 qualities which make it everyone's plant I need not speak. Both by 

 its own variations and the readiness with which it crosses with other 

 species it has been and continues one of the most influential factors 

 of garden adornment. 



Japanese Species of the Candelabra Section. 

 P. japonica, A. Gray (fig. 97) 



P. Miyabeana, Ito et Kawakama, may be mentioned here as an 

 appendage to the Japanese species. It is a purple-flowered species 

 of the Candelabra section which grows on Mount Morrison in 

 Formosa. It is not yet in cultivation. 



AMERICAN SPECIES OF PRIMULA. 



America is not rich in species of Primula. Eleven specific types 

 only — five of them endemic — are known from the continent — three of 

 them showing more or less microforms which have names. Including 

 the microforms there are nineteen named Primulas in America. 



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