1916-17.] BOTANICAL SOCIETY OF EDINBURGH 123 



Gochnatieae in the Mutisieae (near Berardia in Hoffmann's 

 classification) than in Saussurea. 



The fimbrillate receptacle and the barbellato-scabrid 

 setae of the pappus are interesting in view of further 

 unpublished work by one of us, which shows tliat the 

 paleae on the receptacle, especially in the Gynareae, may 

 be a development of the foveolate and fimbrillate types of 

 receptacle, while the plumose pappus is obviously derived 

 from the simple setae by the elongation of the " barbs." 

 Altogether the genus Cavea makes quite a probable, al- 

 though somewhat remote, ancestor of Saussurea and its 

 allies. 



EXPLANATION OF PLATE V. 



Fig. 1. Cavea tanguensis, Smith, et Small, complete plant. Nat. size. 



Fig. 2. Male floret, showing corolla and anther tube, x 6 circa. 



Fig. 3. Upper part of style of male floret, x 15 circa. 



Fig. 4. Anther tube, x 12 circa. 



Fig. 5. Anther, showing apical and basal appendages, x 20 circa. 



Fig. 6. Female floret, showing corolla only, x 6 circa. 



Fig. 7. Upper part of style of female floret, x 15 circa. 



Fig. 8. Capitulnm, showing involucre and receptacle. Nat. size. 



Fig. 9. Complete female floret, showing ripe achene. Nat. size. 



Fig. 10. Upper part of seta of pappus, x 8 circa. 



Mosses of West Lothian (V.C. 84). By J. C. Adam. 



(Read 8th February 1917.) 



In this paper an attempt has been made to compile a 

 complete list of the mosses of West Lothian based upon 

 published records, information and specimens given to me, 

 and my own collections and observations. Very little has 

 been published, so far as I can ascertain, regarding the 

 moss flora of this county. Four species are recorded by 

 Greville in his Flora Edinensis (1824), and a few others 

 are given under the parishes of Abercorn, Ecclesmachan, 

 and Bo'ness in the New Statistical Account of Scotland, 

 vol. ii (1845). These have all been quoted here, but the 

 S3monomy of some of the latter is obscure, and the present 

 existence in the county of the rarer species requires verifi- 

 cation. In a paper by W. Bell and J. Sadler, Trans. Bot. 

 Soc. Edinburgh, vol. x (1869), p. 251, there is a list of 



TEANS. BOT. SOC. EDIN. VOL. XXVH. 10 



