FLORA OF TEIGN BASIN, S. DEVON. 



177 



that it differed from M.furcata in being monoicous, by having 

 recurved margins with double ciha, and by the much larger areola- 

 tion. I at once examined all the packets I had left of M. furcata 

 (having distributed many), and found that out of twelve packets of 

 my West Eiding gatherings only one was M. furcata, and singularly 

 enough this was from Silurian rocks at Cantley Spout, near Sed- 

 bergh, M. furcata preferring trees, whilst M. conjiigata usually occurs 

 on rocks, especially near streams where there is soil and old mosses 

 on the rocks, though not always, for I have collected it on trees. I 

 have it associated with Zieria julacea and Plagiothecimn pulchellum 

 from the (Silurian) Howgill Fells at Dent ; it occurs with Neckera 

 crispa and M. puhescens on limestone (the latter plant I have only 

 found on limestone : is it found in Britain on any other formation, 

 or on trees ?) 



I sent Mr. McAndrew, of New Galloway, a specimen of M. con- 

 jiigata, and told him to re-examine specimens from his district. He 

 at once sent specimens of M. conjagata (previously passed as 

 M.furcata), saying that it occurred in plenty. It occurs plenti- 

 fully near Ingleton, Dent, Sedbergh, and Baugh Fell in W. Yorks. 

 I have also found it among a patch of Hgpinim hainulosum, collected 

 on Ben Laoigh by Mr. T. Eogers. In the London Catalogue it is 

 put down for three provinces — 7, 10, and 12 ; two more may be 

 added — 13 and 15 — and I have no doubt that more still will be 

 added at once if the imrpose of this note be fulfilled, viz., for 

 botanists to examine their herbaria for this species, and for some 

 one to examine the public herbaria in London and other j)laces. I 

 have just had a packet sent me labelled " Metzgeria furcata, Nees ; 

 on shaded rocks, Connecticut, U.S.A., March 24th, 1877, J. A. 

 Allen," which consists entirely of M. conjugata. 



Finally, for tyros in hepaticology like myself a description in 

 these pages of M. conjugata and M. linearis would be a great help, 

 so would descriptions of similar new plants, in order to turn the 

 attention of field botanists to them. 



Mr. Slater has sent me specimens of M. conjugata from Eskdale, 

 N. Yorkshire, and says that Dr. Spruce gathered it in the moor-dales 

 of N. Yorkshire so far back as 1841. I have fresh specimens from 

 Ingleton lying by me, and they are pale yellow- green in colour, 

 having a diagnostic /«ci>5 of then- own, enhanced by the profusion 

 of flowers clearly visible to the unaided eye. 



A CONTRIBUTION TOWAEDS A FLOEA OF THE 



TEIGN BASIN, S. DEVON. 



By the Eev. W. Moyle Eogers, F.L.S. 



(Continued from p. 136.) 



Valerianella carinata, Lois. — Near Bovey Tracey, with V. 



olitoria, Moench. 



V. Auricula, DC. — Ashton and Trusham ; frequent in cultivated 

 laud, intermixed with the commoner V. dentata, Koch. 



2a 



