6 NOMENCLATURE 



The correct scientific name of the quince, when classified as 

 a separate genus, is Cydonia ohlonga Mill. (1768). 



The solution of this nomenclatural case brings the student 

 in contact with several of the fundamental and great botanical 

 books. The correct interpretation of this case rests upon an 

 ability to read scientific books in several languages, an under- 

 standing of the principles of priority, synonymy, and the regula- 

 tions governing the binomial system and tautonyms. Other prin- 

 ciples, laws, and recommendations are illustrated by the other 

 cases. Often a case will involve many of the articles and rec- 

 ommendations of the International Code of Botanical Nomen- 

 clature. 



Useful Publications 



The publications useful to a student of nomenclature are many, 

 too many to be listed here. However, a selection of the most 

 serviceable ones is classified and listed below. 



Indexes 



Andrews, H. N., Jr. Index of Generic Names of Fossil Plants, 

 1820-1950. U. S. Geol. Surv., Bui. 1,013. 1955. 



Gray Herbarium card index of new genera, species and varieties 

 of American plants, 1885- • 



Merrill, E. D. Index Rafinesquianus. 1949. 



PHANEROGAMS 



Index Kewensis 1-4. Supplements 1-11- . 1895- . 



FILICINAE 



Christensen, C. Index Filicum, and Supplements. 1906, 1913, 



1917, 1934. 



MARSILEACEAE AND SALVINIACEAE 



Reed, C. P., Index Marsileata et Salviniata. Sociedade 

 Broteriana, Bol. II, 28: 5-61. 1954. 



LYCOPODIUM 



Herter, W. (or Guilemus). Index Lycopodiorum. 1949. 



Herter, W. Systema Lycopodiorum. 194S>-50. 



