The Lichen Flora of Harden Beck Valley. 
I35 
yard of which has been repeatedly searched during the past 
few years. 
Lempholemma chalazanodes Nyl.—On calcareous mud and 
mosses in niches of walls, roadsides, Wicken Cragg ; roadside 
Harden to Bingley, and other places. Common in suitable 
places. 
Lempholemma confertum Nyl—On calcareous mud and 
mosses in niches of walls, roadsides, Wicken Cragg. Only two 
specimens seen. Quite distinctive from above with its turgid 
cyathoid squamules. 
Collema pulposum Ach.—On calcareous road _ scrapings, 
not plentiful. On roadsides in several places. 
Collema pulposum form compactum Nyl.—On calcareous 
roadsides amongst moss; roadside Manywells to Flappet. 
Scarce. 
Collema glaucescens Hoff.—On calcareous roadsides, among , 
short grass; roadsides in several places. The commonest 
Collema of this valley. 
Collema cheilewm Ach.—On sandy soil, sandstone walls, 
Cullingworth, Harden, Flappet, Hallas, Wicken Cragg. Com- 
mon. 
Collemodium turgidum Nyl.—On calcareous road scrapings, 
among moss in wet places, Wicken Cragg. Plentiful. 
Leptogium tenuissimum WKoerb.—On Sandstone debris on 
walls ; roadside Cullingworth to Manywells. Only one speci- 
men seen in well fruited condition. 
Leptogium humosum Nyl.—On_ hard calcareous mud, 
roadsides, in short grass, Ives Bridge, Ryecroft Road. to 
Keighley. Pentiful. 
Solorina spongiosa Nyl.—On vertical faces of sandstone 
rock, amongst alge ; in fine condition, with numerous apothe- 
cia. I prefer not to give the exact locality of this scarce 
Lichen, only one locality, and not plentiful. 
Peltigera canina Hoff.—On ground, woodland footpaths. 
Goit Stock Woods. Not common. 
Peltigera rufescens Hoff.—On ground (sandstone), Flappet, 
Cullingworth, Harden. Common. 
Peltigera spuria Leight.—On quarry tips, amongst small 
stones, plentiful and usually well fruited, Harden Moor, 
Wicken Cragg. 
Peltigera spuria form erumpens Tay, Journal of Botany, 
1847, p. 184.—On quarry footpaths, amongst small stones, 
plentiful in one locality, but sterile, Harden Moor. 
Peltigera polydactyla Hoff.—On wall tops (sandstone), 
level with grass field, in fine condition and numerous apothecia. 
Only in one locality, roadside Harden. 
Peltigera horizontalis Hoff.—On grassy bank, one locality 
only, now probably extinct, Hill End Farm, roadside, Harden. 
1916 April 1. 
