RErORT OF THE BOTA.]S"ICAL EXCHANGE CLUB. 343 



REPORT OF THE CURATORS OF THE BOTANICAL EX- 

 CHANGE CLUB FOR THE YEARS 1874-5. 

 (^Continued from page 316.) 



Hieracium ccesium ? '* Waukmill Bay, Orphir, Orkney, August, 

 1873. It is with mucli doubt that I name this plant ccesium, as that 

 so-called species is not understood by me. The plant nearest to this 

 supposed Orkney ccesium is the H. vulgatum, var. rosulatum, mentioned 

 below. A root brought from Orkney is now in my garden, which 

 gives me the means of contrasting it with H. vidgatum, var. rosula- 

 tum, cultivated under precisely the same circumstances. The root- 

 leaves of the Orkney plant are broader, darker, and duller green 

 above and more glaucous beneath, thicker and much harsher to the 

 touch, than in H. rosulatum. The stem-leaves (which in each form 

 when cultivated vary from one to four) are more narrowed at the base, 

 the peduncles have more numerous black hairs, the phyllaries 

 are broader, the inner ones much more obtuse and more folded at the 

 end over the apex of the bud, all of them clothed with more 

 numerous black hairs, the flowers are larger, the styles livid from 

 being clothed with minute hairs, which are dark-coloured from the 

 time the flower opens." — J. T. Boswell. 



Hieracium vulgatum, var. rosulatum, Syme E. B., ed. iii. " Kirk- 

 caldy, etc.,. Fife, 1873-4. This is by far the most common species of 

 Hieracium in this part of Fife, and also in those parts of Scotland 

 where I have botanised. I separate it in English Botany as a variety, 

 ou account of its thin leaves, mostly radical, and few (1 to 3) stem- 

 leaves. Besides this, on examining the living plant, I find there is 

 another character which appears to be constant. The fresh styles are 

 bright yellow. It is not until the flower begins to fade that the 

 minute hairs on the styles assume a darker colour, so as to become 

 slightly livid. I have not in cultivation the ordinary form of H. 

 vulgatum, which is common in the South of England, with numerous 

 stem-leaves and thicker, often evanescent, root-leaves, so that I have 

 not the means of comparing the styles of these two varieties. But 

 the difference between the styles of H. vulgatum, var. rosulatum, from 

 those of the Orkney plant, supposed to be ccesium and H. maculatum, 

 cultivated from Plymouth is very marked. They are, indeed, much 

 more similar to H. pallidum, which I have also in cultivation from 

 Orrock Hill in this neighbourhood, where it is extremely scarce. 

 June, 1875." — J. T. Boswell. 



Hieracium strictum, Fries. "Hobbister Rocks, Orphir, Orkney, 

 August, 1873, and ? near Devil's Mill on the Devon, Kinross, August, 

 1874. Hieracium strictum is another form which I do not profess to 

 understand. The Crook of Devon plant seems to me the same as one 

 named H. strictum by Mr. Backhouse, and received by Mr. Baker 

 under that name, localised from Wensleydale, though according to 

 a note by Mr. Baker in ' Topographical Botany,' it appears that Mr. 

 Baker now thinks Mr. J". W. Watson, the collector, may have ' mixed 

 Lakeland and Wensleydale specimens together.' However that may 

 be, the Crook of Devon plant when cultivated becomes extremely 

 like H. corymhosumQwMiYQXeH from the seeds of the Teeedale plant, the 



