NATURAL HISTORY SOCIETY OF GLASGOW. IvH 



— These common Dragon-Flies 



were seen merrily dancing 



iscnnura eiegans, i^ma. / over the same pool on the 



\ Garnock. 



Ecclisopteryx guttidata, Pict.— On the Caaf. 



Philopotamus montaiius, Donov. ,, ,, 



Rhyacophila doraalisy Curt. ,, ,, 



Hydroptila forcipata, Eaton. ,, ,, 



H. fenioralis, Eaton (= H. longispina^ M'Lach). — A large num- 

 ber of both conditions of this recently-described species 

 were observed on the Caaf. 



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

 Mosses from the West Kilbride district : 



Pottia Heimii, B. and S. — On moist turf on the sea-shore 

 below Chapelton. 



Dichodontium pellucidum, L., var. serratum, Schpr. — Biglees 

 Glen. 



Physcomitriuin pyriforme, L. — Common on moist banks and 

 sides of ditches. 



Entosthodon Templetoni, Hook. — On a moist bank near 

 Seamill. 



Funaria fascimdaris, Dicks. — On a moist bank between Seamill 

 and Yonderfields. 



Hyocomiuni flagellare, Dicks.— Biglees Glen ; very rare in 

 fruit. 



Mr. Boyd also exhibited teratological specimens of White 

 Clover, Trifolium repens, L., Dandelion, Taraxacum officinale, 

 Wigg., and the Garden Strawberry, affording remarkable 

 examples of the floral aberration known as "Phyllody." He 

 also made some remarks on the extraordinary prevalence this 

 season of j^cidium grossularice, DC, a fungus parasitic on 

 shrubs of the genus Ribes, especially the Gooseberry, R. 

 Grossularia, Currant, R. riibnun et nigrum, and Flowering 

 Currant, R. sanguineiun. In the case of the first-mentioned 

 species, the parasite occurs in great abundance, not only on 

 the leaves, but even on the young branches, while the fruit is so 

 much disfigured by it that the value of the gooseberry crop is 

 likely to be seriously affected this season. The fungus, which 

 has also attacked the leaves and fruit of the currant, presents 

 the appearance of bright orange -red patches, and these when 

 ripe afford beautiful examples of the cluster-cup stage in the 

 development of parasites of this order. As many of the Leaf- 

 Fungi are now believed to pass through the metamorphic 

 process of development known as "alternation of generation," 

 appearing as "cluster-cups" on one species of plant and as 

 " teleuto-spores " on another plant of a different tribe, it would 

 obviously be of great importance to growers of fruit if the 

 fungus could be recognised in this latter state, and destroyed 



