NATURAL HISTORY SOCIETY OF GLASGOW. XXIX 



SUMMER SESSION, 1887. 



10th May, 1887. 



Mr. Thomas King, Vice-President, in the Chair. 



The Chairman exhibited specimens of Scilla vema, Huds., from 

 Portpatrick, Wigtownshire. 



Mr. D. A. Boyd exhibited specimens of the following Mosses 

 from Ayrshire : 



Dicranum fuscescens, Turn. — A remarkable form with falcate- 



secund leaves, and almost circinate habit. 

 It resembles D. fuscescens, var. falcifolium, 

 Braithwaite, but the leaves are longer than 

 in that variety. This, however, may be 

 due to the comparatively shaded situation 

 in which the moss was grown. There were 

 also shown, for comparison, specimens of 

 typical D. fuscescens, in fruit, from West 

 Kilbride and Largs, the former gathered 

 on rocks adjacent to the spot where the 

 variety with falcate-secund leaves was ob- 

 tained. 



Seligeria setacea, Jacq. — On sandstone rocks, Portincross, West 



Kilbride. 



Barbula Icvvipila, Brid. — A stunted form, occurring in small 



round cushions on dry sandstone rocks on 

 the sea-shore at Portincross, West Kilbride. 



Zygodon viridissimus, Dicks. — Portincross ; in fine fruit. 



Hyocomium flagellare, Dicks. — Crosbie Hills, West Kilbride. 



Mr. R. Broom exhibited a specimen of Trimeresurus erythrurus, 

 one of the Crotatidce, from Siam. 



A number of Microscopic Objects were next exhibited. Among 

 the more important specimens submitted were a series of magnificent 

 fossil diatoms from the Oamaru deposit, New Zealand, exhibited by 

 Mr. Robert Kidston, F.R.S.E., F.G.S. ; a series of specimens illus- 

 trating the development of the embryo of the Shepherd's Purse 

 (Capsella Bursa-jictstoris, Mcench), exhibited by Mr. Thomas King, 

 Vice-President; and a number of living specimens of the trochosphere 



and veliger larvre of Limncea peregra, Mull. 



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