110 THE JOURNAL OF BOTANY 



A. Hairs more abundant than, or equalling glands. Phyllaries 



± fioccose, especially on their margins. 



I. Glands + dense. 



(a) Hairs fairly dense, phyllaries fairly fioccose. 



1. H. acroleucum Stenst. 



2. H. vulgatum Fr. 



(b) Phyllaries ± densely glandular, efloccose, with hairs 



scattered to dense* 



3. H. pinnat ifidum Lonnr. var. vivarium Lonnr. 



II. Glands scattered or few. 



4. H. sub-ramosum Lonnr. 



B. Hairs fewer than the glands, or in some cases 0. Phyllaries 



floccose-margined. 



5. H. conspersum Dahlst. 



6. H. scanicum Dahlst. 



7. H. irriguum Fr. 

 [H. sciaphilum Uechtr.] 



C. Phyllaries efloccose or rarely floccose-margined, densely glandular. 



L Styles dull. 



(a) Leaves slightly hairy. 



8. H. anfractum Fr. Subsp. cacnminatum Dahlst. 



var. barbareafolium Lonnr. 



(b) Leaves more or less densely pilose. 



9. H. diaphanoides Lindeb. 



10. H. ornatum Dahlst. 



II. Styles yellow. 



11. H. diaphanum Fr. var. glaucovirens Dahlst. 



H. piNNATiFiDUM Lonnr. Dahlst. C. ii. (1892) No. 86. H. vulgatum 

 Fr. var. nemorosum Lindeb. fasc. ii. No. 74. Stem tall, flexuose, 

 violascent and pilose below, slightly pilose and with stellate pube- 

 scence above. Root-leaves 3-4, the outer withering early, oval, 

 with short teeth or sub-entire, inner oval-oblong to lanceolate 

 innermost acute, with many short teeth or pinnate-dentate. Stem- 

 leaves distant, the lower often large, ovate-lanceolate to lanceolate, 

 long-pointed, pinnatifid-dentate especially at the base, often laciniate 

 or many of the leaves slightly dentate, all violascent beneath, pilose, 

 and with stellate pubescence. Panicle ample, lower branches 

 remote upper approximate, long, exceeding acladium. Peduncles 

 white-floccose with many dusky hairs and few scattered glands. 

 Involucre somewhat slender, rounded at base. Phyllaries linear- 

 lanceolate, inner green-margined, with long naked points, slight^ 

 fioccose at base, with fairly numerous black glands and somewhat 

 fewer hairs. Styles yellowish or dingy. . 



Distribution. Carnarvon: Bangor, Griffith, 1892! abundant 

 in woods in the Ogwen Valley, 1904. Denbigh : Colwyn, P****** 

 1895 1 Derby : Dove Dale, W. R. Linton, 1896 ! Leicester, Bell , 

 1896 ! Bridge of Brown, Easterness, 1905, Marshall I Craig 

 Caillich, Perth, 1891, W. R. Linton I ._ 



Var. vivarium Lonnr. Dalhst. C. ii. (1892), No. 87. Di fler ^ 

 from the type by a more rigid habit, shorter leaves with fewer an 



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