258 FURTHER NOTES ON HIERACIA. 



the subgenus Cesia, where there is no true perianth, and the 

 innermost bracts are free. Distinguished from other species of the 

 same genus by its autoicous inflorescence. Dr. Spruce found in 

 original specimens from Herr Limpricht a fertile involucre which 

 had a tubular perianth reduced to a short multilobate cup, con- 

 firming his contention as to the position of the supposed genus 

 Cesia. The relative terms as to size of plant and leaf- cells are 

 based upon the scales used by Dr. Spruce. 



Explanation of Plate 327.— Fig. 1. Plants, nat. size. 2. Portion of fertile 

 stem x 24. 3—6. Leaves x 31, 7—9. Ditto x 24. 10. Leaf x 64. 11. Por- 

 tion of leaf x 290. 12, 13/ Sub-bracts x 64. 14, 15. Bracts with inner peri- 

 chffitium x 64. 16. Bract x 64. 17. Perigonial leaf x 64. 18. Antheridium 

 X 85. (Ben Nevis, W. West). 



FURTHER NOTES ON HIERACIA NEW TO BRITAIN. 



By Frederick J. Hanbury, F.L.S. 



(Continued from p. 202.) 



Hieracium hibernicum, n. sp.— This species, discovered some 

 years ago by Mr. H. C. Hart, is referred to by him under the name 

 of H. argenteum Fr. in an interesting paper on Irish Hieracia which 

 appeared on p. 48 of this Journal for 1886. A glance at the long 

 note following this record will show how distinct this plant appeared 

 to both Mr. Backhouse and Prof. Babington, who hesitated between 

 describing it as " possibly new" and a "very remarkable" form of 



H. argenteum. 



In 1889, Dr. Lindeberg erased the name argenteum, and wrote, 

 " Capitula Hieracii Friesii, sed herba lange alia. Forma nova." Of 

 the four localities mentioned by Mr. Hart, I have his specimens 

 from Moynalt, near Lagley, Donegal, and from the Mourne Moun- 

 tains, but cannot say whether the other localities he mentions refer 

 to this or H. argenteum Fr. Last summer I had the opportunity of 

 collecting, m very fine condition, specimens from the latter station 

 under the guidance of Mr. S. A. Stewart, and was thus enabled to 

 secure a full description and examples for figuring. Its general 

 facies may be briefly described as argenteum-like, but with numerous 

 stem-leaves, and slightly livid styles ; it cannot, however, on careful 

 examination, be referred to that species. 



The stem ranges from about 12 to 22 in. in height, is reddish 

 purple below simple, and bearing from one to three heads. Radical 

 leaves ovate-lanceolate, obtuse, and, unlike those of H. araentetim, 

 disappearing as the plant reaches maturity. Stem-leaves numerous, 

 5-H, gradually diminishing upwards, almost glabrous above (though 

 bearing a few short stiff hairs), and, excepting on the veins, glabrous 

 also below; m texture colour, and (frequently) recurved habit, as 

 well as in general outline, acute points and sharp toothing, they 

 closely resemble those of H. argenteum.. The peduncles bea? a few 

 very narrow bracts. Involucres truncate, angular, and lmmnv. 



