11 



Leucobryum glaucum, L. Hab. in damp hollows of Bostol Wood, 

 on stumps of trees and ground ; very common. This moss exists in large 

 spongy cushions ; very rare in fruit. 



DICRANE^ (yoke moss family). 



DiCRANELLA HETEROMALLA, Hedw. Hab. dry banks in Bostol Wood 

 and also Stapley's Wood ; it forms large green silky patches ; in fruit 

 during March. 



DiCRANUM SCOPARIUM, L. (broom yoke moss). Hab. common on Bostol 

 Heath under the furze bushes ; very seldom in fruit. 



DiCRANUN MAjus, Tum. Hab. in boggy places in Bostol Dale ; not 

 in fruit. 



DiCRANUM VARIUM, Hedw. Hab. Bostol Wood. 



DiCRANUM CRISPUM, Hedw. Hab. Stapley's Wood. 



Ceratodon purpureus, L. {purple yoke moss). Hab. very common 

 on the ground, in large purple patches when in fruit, which occurs during 

 March. The peristome of this species is a beautiful object under the 

 microscope. 



FISSIDENTIEyE (split moss family). The leaves of this family are 

 arranged in a vertical manner on the stem, and are split at the base, 

 hence the name. 



FissiDENS bryoides, Hedw. (common flat split moss). Hab. side of 

 Woolwich Road ; rare ; in fruit during March. 



FiSSlDENS ADIANTOIDES. Hedw. (marsh split moss). Hab. marshy 

 ground in Bostol Dale ; in fruit during March. 



FissiDENS TAXiFOLius, L. Hab. bank of stream near Bostol Wood. 

 Not in fruit. 



TRICHOSTOMEyE. So named from the hair-like form of the teeth 

 of the peristome. 



Barbula muralis, L. (common wall screw moss). Hab. very common 

 on old walls. In fruit during February. 



Barbula revoluta, Schwg. Hab. old walls ; rare. 



Barbula subulata, L. Hab. Bostol Heath ; not common. 



Barbula ruralis, L. Hab. on the sandy banks of Bostol Hill 

 cutting ; rather common. In fruit during February. 



Trichostomum undulum, Smith. Hab. chalky bank of stream 

 near Bostol Wood. In fruit during February. 



FUNARIE^ (cord moss family). 



FUNARIA hygrometrica, L. (common cord moss). Hab. damp banks 

 and ground ; very common. In fruit during February. Known by the 

 fruit stalk being much curved and hygrometic. 



