NOTES OX UKITT-SII lUEIJACTA 2S3 



stylose- flowered liawkweeJs in the Lake Disiriet is jiecnliar, for 

 this condition of II. anrjlicum y'ay. jaculij'olium and of //. duriccpa 

 var. cravoniense also grows in the neighbourhood of Keswick. Jt 

 may be noted that in habit and foliage H. proximum somewhat 

 resembles H. iriciim. 



Sect. VuLGATA, Sub-sect. Silyatica. 

 H. STLYATicuM Gouan. — The varieties placed under this species 

 in British llieracia show great diversity of form, and it is dilHcuit, 

 judging by the average standard of Ilieraciuin species, to regard 

 such a form as the small-headed variety micracladium Dahist. as 

 conspecific with W. M. Linton's varieties tricolor and suhci/aneum. 

 Daldstedt's variety appears to have some affinity with his II. varii- 

 Golor. 



Sect. VuLGATA, Sub-sect. Sub-vulgata. 



H. EUDiGiiXOSUM F. J. Hanb. — There occurs in Wharfedale, 

 growing at intervals along the stream from Bolton Woods at least as 

 far as Grassington, a well-marked form of this species that has been 

 referred to the si)ecific type, but which, as Mr. Linton suggests, 

 approaches the Derbyshire variety j;ecc<?«se W. K. Lint. Its radical 

 leaves are few and coarsely hairy on both sides, with rather sniail 

 teeth ; and the lowest of the 2-4 cauline leaves are narrowed below to 

 short broadly- winged petioles. The stem is pilose throughout, and is 

 clothed above, like the peduncles, as in var. peccense. The sub- 

 acuminate phjdlaries, however, differ from those of that variety 

 in that the simple dusky hairs predominate, the glandular ones 

 being but few. The plant is probably similar to that mentioned in 

 British llieracia (p. 43) as growing at Lh'n Dulyn. 



Of Backhouse's H. vulgatuni var. ruhesceiis, on which H. ruhi- 

 (jinosum was founded by Mr. Hanbury, there is only one poor 

 specimen from Backhouse in Herb. Mus. Brit., but two good Giggles- 

 wick examples exist at Kew. This form, which I failed to find last 

 year at Giggles wick and Gordale, differs considerably'' from the 

 Wharfedale plant and var. peccense, for it shows a more developed 

 radical rosette and fewer cauline leaves, and the stem and leaves are 

 less pilose. Its phyllarles, also, appear broad and obtuse, although 

 described as " subacuminate " by Backhouse and in Babhigton's 

 3Ianual,,ei\. 9. 



This typical H. ruhiginosum bears a resemblance to H.sagittatum 

 var. maculigerum W. li. Lint., which Ley separated as a new species, 

 H. Lintoni (Journ. Bot. xlvii. p. 16 (1909)), but it is distinguishable 

 by its larger heads, with broader and less glandular phyllaries. 



Like H. liolophgUum W. B, Lint., H. ruhiginosum (es])ecially 

 var. peccense and kindred forms) recalls the sub-section Eii-Vulgafa 

 by its cauligerous rather than scapigerous habit. 



H. HOLOPiiYLLUM W. 11. Lint. — It seems possil)le that this 

 species is identical with Backhouse's H. vulgaium var. cinereum 

 (Mon. p. 61), but no specimens from Backhouse to confirm this can 

 be traced in Herb, Mus. Brit, or at Kew. The descrijjtion, except 

 perhaps for the glaucous foliage, points to H. holophylhi)n, and 

 it is not easy to see what other form growing on the Great Orme's 

 Head can have been intended. 



