GLASGOW SOCIETY OF FIELD NATURALISTS. 65 



up special branches of study, Dr. Stirton and others stated that 

 they would be happy to give every help and assistance, with regard 

 to their own special branches, to any of the members who wished 

 to take up such special study. 



Mr. Cameron remarked on the value of attending to varieties 

 in making up lists of species for a district, and adverted to 

 Staudinger's nomenclature and division into species, Darwinian 

 species ( = sub-species), varieties, and aberrations, as a good working 

 one. 



16th June, 1874. 



Mr. Richard M'Kay, Vice-President, in the chair. 

 Mr. J. C. Hutcheson was elected a resident member. 



SPECIMENS EXHIBITED. 



By Mr. Alexander Watt. — The four British species of Lemna, 

 all from the Forth and Clyde Canal. He made some remarks on 

 their structure, growth, and distribution ; one species only, Z. 

 minor, is generally distributed through the district, the others 

 being very rare, although L. trisulca is plentiful in its localities. 



By Mr. Alexander M'Indoe. — Rahus chamaimorus from the 

 Earl's Seat ; Trollius Europoius and Hahenaria viridis from Craig- 

 allian Loch. 



By Mr. F. G. Binnie. — A fresh-water mollusc, Planorhis nitidus, 

 Muller, from the Forth and Clyde Canal at Firhill. Also the 

 apparently rare caddis-fly Limnophilus luridus — new to the dis- 

 trict — from the Kilpatrick Hills and Caplaw Dam. Only five 

 localities are given for this species in M'Lachlan's " Monograph of 

 the British Trichoptera," Rannoch being the only Scottish station. 



EXCURSION. 



Beihton and Glenij^er. — Mr. J. R. Watson gave an account of 

 this excursion. A number of interesting plants were found, in- 

 cluding Sedum villosum, collected on the Gleniffer Braes. Lim- 

 nophilus luridus was captured near Caplaw Dam. 



At an excursion to Eaglesham and Ballagioch, on the 6th 

 instant, besides observing Lamium album, Umpietrmn nigrum, and 

 other unfrequent plants, a station was found for Peucedanum 

 Ostruthium. Mr. Alexander Watt found Char a Jiexilis and G. 



