10 Mr. J. Ball on the genus Leontodon. 



foliis incano-virentibus, exterioribus spathulatis, sequentibus ob- 

 lougo-lauceolatis, antrorsum dentatis ; iuvolucri foliolis lineari-acu- 

 minatis ; achenii suberostris costis muricatis, radiorum pappi plu- 

 mulis deciduis. 

 Hab. in Apeiinino Apuano. In verticibus Pagna della Croce* et 

 Tamhura, mense Julio, 1844, florentem, banc stirpem detexi, ite- 

 rum legi, mense Maio, 1848, juxta scaturigines Frigidse in iisdem 

 montibus, specimina nova prioribus omnino conformia. 



Although this species much, resembles L. hastilis A, I cannot 

 doubt of the necessity for distinguishing it from all the forms of 

 that species. Independently of the remarkable and anomalous 

 character of the pappus, common to all the specimens from the 

 diflferent localities above mentioned, the hooked branches of the 

 forked hairs, the narrower and more pointed phyllaries, and the 

 rougher ribs of the fruit, furnish points of distinction amply suf- 

 ficient to justify its introduction as a new species. The root also 

 appears to resemble those of the two following species, and to 

 indicate a transition from the horizontal abrupt rhizoma of the 

 species hitherto described to the fusiform root which charac- 

 terizes the following section. 



8. L. Villarsii, Lois. Radice subfusiformi, obliqua, parce fibrosa ; 

 foliis insequaliter pinnatifidis, lobis oblongis angulatis, utrinque 

 pilis longis, albis, simplicibus, interdum apice brevissime furcatis, 

 copiose vestitis ; scapo tenui subglabro, superne, cum involucri foli- 

 olis exterioribus lineari-acuminatis, demum recurvis, pube brevis- 

 sima stellata, pilis raris intermixta, parcius adsperso ; achenii sub- 

 erostris costis vix rugulosis. 



Hab. in saxosis Galliae australis, Pedemontii et (?) agri Forojuliensis/ 

 infrequens. Habeo e Gallia prope Gap, comm. cl. Jordan ; atque 

 ex Pedemontio juxta Col di Tenda, ubi detexit cl. Renter. 



Syn. L. hirtuni, Vill., et forsan Linn. sp. 1 123. Apargia Villarsii, W. 

 Picris hirta. All. 



This species, very distinct in appearance from the preceding 

 members of this section of the genus, is closely allied to the fol- 

 lowing species, of which it might be considered a subspecies -(- E 

 but for the diflferences found in the hairs and fruit of L. Rosani. 



9. L. Rosani, D.C. Prod. Radice subfusiformi, obliqua, parce fibrosa ; 

 foliis oblongis, profunde pinnatifidis, segmentis spathulatis oblon- 

 gisve, angulatis, e pilis longis albis, sub lente asperis, interdum sim- 

 plicibus, saepius apice bifurcatis, utrinque hirtis ; scapo tenui sub- 

 glabro, superne, cum involucri foliolis lineari-oblongis adpressis, 

 pube brevissima stellata, pilis raris intermixta, adsperso ; achenii 

 vix rostrati, costis eminentibus muricatis. 



Hab. in apricis Italise mediae et inferioris baud infrequens. Legi in 



* I possess a specimen of the common L. hastilis A, gathered at the 

 same time on this mountain. 



