FLORA OF OXFORDSHIRE. 413 
T. squarrosa, Prid. 
Limestone banks and sandy-seashores. Scattered single plants occurred 
at Holton, with Trichost. crispulum, and Tort. inclinata, a very un- 
expected find, in 1872, 3, and 6. 
T. subulata, Linn. 
Sandy hedge-banks ; about trees and old walls. Spring. Rare here. 
Wychwood Forest; Shotover; Stow Wood; Headington Wick; near 
Henley. Foxcombe Hill and Pusey, Berks. Formerly abundant in 
Shotover Plantations, but almost destroyed by clearings about 1865. 
T. muralis, Linn. 
On walls, either brick or stone, abundant and common. April. All 
through the early months of the year its numerous yellow stalks make it 
conspicuous. Var. rupestris, about Wychwood Forest in several places ; 
between Shotover and Cuddesdon, on dry stone walls. 
T. marginata, Br. & Sch. 
Shady damp walls, earth covered stones; rare. May, June. Near the 
church at Great Tew, in some abundance. Edges of beds in the Botanic 
Garden. Magd. Coll. Groves. Hincksey; Sunningwell, Mr. Holliday. 
Smaller and more delicate than the last, and fruiting later. 
©. latifolia, Br. & Sch. 
Roots of trees, rotten wood, and stones by rivers; rare, and very rare 
in fruit. May. On one or two willows by the Cherwell, here and there ; 
by the Evenlode near Stonesfield and Ascott, plentiful, sparingly in fruit ; 
stone embankment, Christ Church Meadow, 1880. Wytham, Berks. 
T. levipila, Brid. 
Trunks of trees; sometimes on detached rocks. May. In Wychwood 
Forest; Witney; Blenheim Park; on willows by the Cherwell and 
Thames occasionally,—as Islip, Godstow, and Nuneham. Also on old 
orchard trees, as at Kidlington and Buckland. 
T. intermedia, Brid. 
T. ruralis, B, rupestris, Wils. 
On dry calcareous walls and rocks. April. Near Burford; Witney; 
Hailey; Islip; Noke; Kirtlington, ete. Cumnor, Berks. 
T. ruralis, Linn. 
Common on thatch, growing very large. April. On Sandy banks 
near Stow Wood. The capsules are often blighted by March frosts. 
T. papillosa, Wils. 
Trunks of trees, rare. Fruit unknown in Europe but found in Australia. 
Orchard trees, Witney; Mr. Westell. On elms Kennington, Berks, Mr. 
Holliday. Abundant by the Ouse near Buckingham; H. B. 
