THE ANNALS 



AND 



MAGAZINE OE NATURAL HISTORY. 



[SECOND SERIES.] 



•' per litora spargite museum, 



Naiades, et circClra vitreos considite fontes : 

 Pollice virgineo teneros hlc carpite flores ; 

 Floribus et pictum, divje, replete canistrum. 

 At vos, o Nymphse Craterides, ite sub undas ; 

 Ite, recurvato variata corallia trunco 

 Vellite muscosis e rupibus, et mihi conchas 

 Ferte, Dea pelagi, et pingui conchylia succo." 



N. Partkenii Giannettasii Eel. 1. 



No. 31. JULY 1850. 



I. — Outlines of a Monograph of the genus Leontodon, 

 By John Ball, M.R.I.A. 



An examination of the species of the geuxxs Leontodon, L., con- 

 tained in my herbarium, and a comparison of the specimens with 

 the descriptions of authors, has led me to perceive that, with the 

 single exception of Koch, the most esteemed authors have but 

 very imperfectly distinguished the species of this genus, or deter- 

 mined the natural groups into which they are distributed. Koch's 

 Synopsis*, however, gives so complete and satisfactory an ac- 

 count of the forms belonging to the German and Swiss floras, 

 that it might appear superfluous to attempt to add anything to 

 his descriptions if they included a larger number of species, but 

 in consequence of the region of his flora being so far limited, 

 and of having myself observed and collected several species not 

 included in his work, I am induced to propose the following ar- 

 rangement of the forms known to me as the result of independent 

 observation, in the hope that it may assist those botanists who, 

 like myself, may have found the descriptions contained in other 

 works incomplete and unsatisfactory. 



I shall premise a few remarks upon the several organs from 



* I should observe that reference is made herein exclusively to the first 

 edition of Koch's 'Synopsis Florae Germanicae et Helveticae.' 

 Ann. ^- Mag. N. Hist. Ser. 2. Vol. vi. 1 



