202 Botany. 



B. argenteum, L. Waste ground, cinders, walls, roofs, fields, way- 

 sides ; very common and very abundant ; late autumn. 



1. Greenhithe, '77. H. 



2. Catford Bridge, '01. G. 



B. atropurpureum, W. & H. (BICOLOR, Dicks.). Clay banks, road- 

 sides, mud-capped walls, damp bare earth ; common ; 4 6. 



1. Keston Common, '77. H. 

 var. b.) gracilentum, Tayl. With the type, frequent. 



1. Kevington, '01. C. 



B. caespiticium, L. Dry banks, walls, rocks, roofs ; frequent ; 

 summer. 



1. Wall near Hayes Common ; Chislehurst ; Shorncliffe, 

 '77. H. 



B. capillare, L. Walls, rocks, tree trunks ; very common ; 5. 



1. Keston Common, '77. H. 



2. Darenth. W.R.S. 



B. donianum, Grev. Stony ground and gravelly banks ; not com- 

 mon ; 4 6. 



1. Bexley, '77. H. 



B. erythroearpum, Schw. (SANGUINEUM, Brid.). Sandy and peaty 

 heaths ; common ; summer. 



1. Polehill, '01. J.S. 



2. Swanscombe Wood, '77. H. 



B. murale, Wils. On mortar of recently made walls ; not common ; 

 46. 



1. Woolwich, '77. Gray. 



2. Greenhithe, '01. J.S. 



B. pallens, Sw. By streams and ditches ; frequent ; 6. 

 a. Shooter's Hill, 1724. 



B. pendulum, Schp. (CERNUUM, B. & S.). Walls, dry heaths, sand, 

 etc. ; not uncommon ; spring and early summer. 

 1. Catford Bridge, '01. G. 



B. pseudotriquetrum, Schw. (MNIIJM ; B. VENTRICOSUM, Dicks.). 

 Bogs and wet places ; not common ; summer. 

 1. Keston Common, '01. G. 



B. roseum, Schr. (MNIUM ; BRYUM PROLTFERUM, Sibth.). Shady 

 banks and damp woods in hilly districts ; rare ; 12. 

 L Hoi wood, '01. C. 

 a. Shooter's Hill, 1724 



