BRITISH HIEKACIA. 43 



c. PALLIDA. 



Involucres more or less Jiairy. PTiylla/ries appressed. MoreU 

 without Aairs externallvj nearly or quite glahrom at the tips.. 



15. H. FALLIDUIII. Extremely gimems. Stem slender with few 

 heads and usually one leaf; glabrous. Boot-leaves lanceo- 

 late or ovate, acute, remotely denticulate, or dentate below; 

 glabrous or coarsely ciliated with long hairs; original 

 ones obtuse; stalked. Stem-leaves lanceolate, shortly 

 stalked or sessile. Involucres ovate at the iase, ventricose, 

 constricted above, floccose, with setae and few hairs. Phylla- 

 ries oppressed, acute. Florets sub-glabrous. Styles yellow. 



H. pallidum, rries, Symb. p. 94. Bab. Man. Ed. S, p. 195. 

 H. macrocmlon hirsutumfoUo rotundiore. Bay's Syn. Ed. 3, p. 169. 



Cliffs of 1000 to 2000 feet elevation. Ealcon Clint&and CronHey 

 Scars, Teesdale, on basalt. CrossfeU, Cumberland. Glara-mara 

 and other mountains of the Lake district. Micaceous cliffs of Craig 

 Maid and Eavine of the "White Water, Clova mountains (?). 

 Duniquoich, Inverary. Ifear the Grey Mare's Tail "Waterfall, 

 Dumfriesshire. Craig Breiddin, Montgomeryshire. EiUamey. 



Flowers in 6th and 7th months, and again in 9th month. 



Plant 6 to 18 inches high (usually 12 to 15 inches) with 

 heads of medium size. Boot-stock thick, elongated, decum- 

 bent, woody, with few strong fibres. Stem usually with 1 leaf, 

 sometimes 2, or leafless; with few (2 to 6) heads, nearly or 

 quite glabrous, leaves silvery-glaucous or pale csesious green. 

 Eoot-leaves rosnlate, denticulate or remotely dentate, usually 

 rounded at the base and with few (sometimes large and broad) 



