353 



SOME NEW FOKMS OF HIERACIA. 

 By Rev. E. F. Linton, M.A. 



In his contribution towards a paper on the British Hieracia 

 and their distribution which the Rev. A. Ley was preparing for 

 me to complete, he drew my attention to two or three forms wliich 

 he asked me to examine, and, if I thought them distinct, to 

 describe. The Rev. W. R. Linton also left several forms set 

 apart for consideration, which could not be identified. Some few 

 of these are now given a description in the following paper, under 

 the MS. name of one or other of these lamented associates in the 

 study of hawkweeds, if such a name has been found in their MS. 

 notes. 



H. Levi F. J. Hanbury var. vestitum Ley in Herb., nov. var. 

 The peduncles of this variety are clothed with scattered long hairs, 

 densely glandular just below the heads ; phyllaries very dark, 

 senescent, otherwise almost efioccose, clothed with much long 

 hair and strong unequal glands. Ligule tip more or less ciliate 

 but often glabrescent ; style noted as yellow by the Rev. W. R. 

 Linton, who collected it with Mr. Ley, and made many descrip- 

 tive notes. 



Dolly waggon Pike ; High Street Cliffs at Riggindale Head, 

 Westmorland. Another form of H. Leyi also grows on Dolly- 

 waggon, with heads rather thinly clothed compared with the type. 



H. sordidum W. R. Linton MS. in herb. Stem 6-12 in., 

 thinly and shortly pilose, floccose upward ; leaves rather thick, 

 dull glaucous-green, blotched in exposure with purple-brown, 

 glabrous above sparingly pilose beneath, long ciliate ; outer 

 roundish-oval to oblong obtuse, base truncate or cordate-sa.gittate, 

 inner subtriangular ovate to ovate-oblong and oblong-lanceolate 

 (innermost acute), somewhat dentate, often with large retrorse 

 teeth varying the subtruncate base ; stem-leaf or at most a 

 sessile leafy bract. Panicle 1-3-flowered, rarely with a lower 

 two-flowered ascending branch ; heads moderately large, ovoid, 

 greyish ; peduncles floccose with many hairs and unequal glands ; 

 phyllaries similarly clothed, margins markedly floccose, hairs more 

 numerous than glands ("equally numerous," W. R. L.). Ligule 

 tip glabrous ; styles livescent ; pappus brownish-grey, exceeding 

 the phyllaries. 



H. SORDIDUM W. R. Linton MS., sp. nov. Caulis brevis 

 0-folius pilis sparsis obsitus superne mediocriter floccosus. Folia 

 rosularia viridi-glaucescentia breviter petiolata, longe ciliata, supra 

 glabra maculis brunneo-purpureis (nisi in locis umbrosis) conspur- 

 cata, subtus parce pilosa; exteriora rotundo-ovalia vel -oblonga ad 

 basin truncata vel cordato-sagittata, interiora subtriangulari-ovata, 

 ovato-oblonga vel oblongo-lanceolata + acuta, sat dentata, basi 

 saepe fortiter reverso-dentata. Anthela su])simplex 1-3-cephala 

 raro ramo 2-cephalo inferiori, pedicellis brcvibus Hoccosis pilis et 



Journal of Botany. — Vol 49. [Dec. 1911.] 2 e 



