412 FLORA OF OXFORDSHIRE. 
T. vinealis, Brid. 
Dry caledreous walls, frequent and sometimes in abundance, but rare in 
fruit. April, May. On Magdalen Bridge, before the widening ; roadside 
Headington Hill; Cumnor Hill, Berks. The pale green foliage of the 
barren plant is very conspicuous in winter, but as summer approaches it 
gradually becomes brown. 
™, Hornschuchiana, Schultz. : 
Calcareous walls; rare. April. Roadside near Noke in some plenty, 
1860. Wheatley 1869 ; Hincksey 1872, 1874. 
T. rigidula, (Dicks.) Hook. & Tayl. 
Trichost. rigidulum, B, densum, Wils. 
Walls and stones, rare. Autumn. About Witney, Asthalleigh, and 
Burford, 1877; Wall by Singe Wood; old quarries in Wychwood Forest, 
1879. 
i T. revoluta, Schwegr. 
On calcareous walls, frequent. April. Charlbury; Witney; Heading- 
ton Hill; Shotover; Wheatley; Forest Hill, etc. Hincksey and Cumnor, 
Berks. 
T. convoluta, Hedw. 
Calcareous walls and banks. April. Heyford; Kirtlington; Islip ;_ 
Noke; Shotover; Wheatley; Bessilsleigh, Hincksey, and Cumnor, Berks. 
Readily known from the last species by the longer fruitstalk which is of a 
pale yellow throughout, like that of Leptodontium flexifolium. 
T. sinuosa, (Wils.) Lindb. 
Dicranella sinuosa, Wils. MS. 
Didymodon, Schpr. Synops. 
Foot of walls in loose gravelly soil; stones; wall tops, and about the 
bases of trees. Winter. Hanwell near Banbury; very scarce about 
Oxford; larger and more frequent about Witney ; hedge-banks and sides 
of woods near Stokenchurch, Wycombe, and Henley ; Sunningwell, Berks. 
A very curious moss, only found barren; ‘c'est un beaw Didymodon, Dr. 
Schimper, in lit, 1870. 
T. inclinata, Schwagr. 
Caleareous banks. Winter or Spring. Amongst grass on dry banks, 
Holton Stone Pits, 1872, 1873. Barren, scarce; not unlike 7. unguiculata 
in aspect. As far as I can ascertain the only locality yet known for this 
moss in Britain. 
T. tortuosa, Linn. 
On limestone walls and rocks. Rare here and not found in fruit. 
Spring. Walls at Asthalleigh and Widford near Burford, in fine large 
tufts. 
