6^'^ 



^o^^4 



OCT n IMS 



^ y CERASTIUM — LINUM. 27^ 



Main Limestone of Leyburn Shawl. In the Central Vale it 

 grows at Brompton-on-Swale, Topcliffe, and about the Stockton 

 and Strensall Heaths ; and in the Howardian tract at Yearsley 

 and Terrington. In the Ainsty in sandy lanes about Poppleton 

 and Acomb; If. Ibbotson. Sowerby Flats, Carlton Miniott, 

 and other places near Thirsk ; W. Foggitt. In Cleveland it is 

 a plant of the basaltic dike and coast sand-hills. 



Cerastium tetrandrum Curt. British type. Native. 

 Maritime. Area 5 4. Range Coast-Level. With the preceding 

 amongst the coast sand-hills at Coatham, Redcar, Marske, 

 and Whitby. 



Cerastium arvense L. British type. Native. Subxero- 

 philous. Area 98765.321. Range 0-250. Dry banks, 

 one of the most frequent of the characteristically xerophilous 

 species. Besides its stations amongst the lower levels of the 

 calcareous tracts it is plentiful amongst the coast sand-hills, and 

 occurs in many of the drier parts of the Central Vale, especially 

 by the stream-sides, as for instance by the Tees between Croft 

 and Dalton, the Swale at Sandhutton and Topcliffe, and the 

 Ouse along Clifton Ings. It is allied in its distribution to 

 Anthyllis Vii/neraria, but does not ascend so high. 



Linum usitatissimum L. Alien. Occasionally cultivated 

 in the lower zone, and to be met with casually in a subspon- 

 tancous state. Linton-on-Ouse, the Lintune of the Domesday 

 Book, is said to derive its name from the plant, so that it would 

 seem that its growth is of ancient date. 



Linum perenne L. Germanic type. Native. Xerophilous. 

 Area 7. Range 250. In the Yore district on the western edge 

 of Leyburn Shawl ; /. IVard ! Re-gathered by W. Home in 

 1883. Reported also by R. Teesdale from fields at Bulmer. 



Linum angustifolium Huds. Alien. Reported by W. 

 Brunton from the neighbourhood of Malton, but not seen re- 

 cently. A few plants on Stockton Forest in 1881;^. JR. Waller. 



Linum catharticum L. British type. Native. Area 

 general. Range 0-700. Common upon sandy and grassy banks, 



Bot. Trans. Y.N.U., Vol. 3. S 



