i. 



21 
Order Cannabinacee. The Hemp Family. 
Humulus Lupulus. Hop. Owlerbarrow, J. W. Near Bolholt, T.C. Birtle, 
Lomases. 
Order Ulmacee. The Elm Family. 
Ulmus montana. Wych Elm. Common. 
U. campestris. Field Elm. Common. 
There are well grown trees of both these Elms at Chesham. 
Order Amentacee. The Catkin-bearing Family. 
Alnus glutinosa. Alder. Common. 
Botula alba. Birch. Common. Excavations of peat near Hudcar indicate that this 
ancient forest was almost entirely of birch. 
Carpinus Betulus. Hornbeam. Common. Chesham. 
Corylus Avellana. Hazel. Common. 
Fagus sylvatica. Beech. Common. It seems to withstand smoke pretty well. 
There is a beech at Broomfield, Ainsworth, with a girth of Sft. 2in. five feet 
from the ground. It is 2} miles from Bury, and 8} miles from Bolton. 
Quercus Robur. Common Oak. There are plenty of oaks about Bury, and some 
fair trees, but they do not seem to be flourishing well now. 
Q. Cerris. Turkey Oak. Common. It seems to withstand smoke better than the 
common oak, 
Salix pentandra. Sweet bay-leaved Willow. Near Frog-hall, J. P. 
8. fragilis. Crack W. Common. 
§. alba. White W. Common. Handsome trees in the dells near Ringley Road 
station. 
8. viminalis. Osier W. Common. 
§. Caprea. Common Sallow. ‘ 
Populus alba. White Poplar. Common, but does not grow well. 
P. nigra. Black Italian P. There isa fair tree at Spring side, measuring in cir- 
cumference 6ft. Jin. five feet from the ground, but they generally do very badly 
and die in a short time in smoky places. 
P. fastigiata. Lombardy P. Commonly cultivated, but with very poor success. 
P. balsamifera. Balsam P. The last remark applies. 
Order Conifere. The Cone-bearing Family. 
Pinus sylvestris. Scotch Fir. Grows badly in smoke. There is a good tree at 
Spring-side, but most in the neighbourhood are dead or dying. 
CLASS S1.—MONOCOTYLEDONS. ONE SEED-LEAF. 
Order Typhaceee. The Bullrush Family. 
Sparganium ramostim. Bur-reed. Bury ground, J. P. Elton-vale, T. 0. 
Order Aracee. The Cuckoo-pint Family. 
Acorus Calamus. Sweet-flag. Bury ground. 
Order Lemnacee. The Duckweed Family. 
Lemna minor. Duckweed. Common. 
Order Naiadacew. The Pondweed Family. 
Potamogeton natans. Flatter-docks. Common. 
Order Alismacee. The Water-Plantain Family. 
Alisma Plantago. Water-plantain. Common, 
