284 THE JOURNAL OF BOTANY 



my friend Mr. Samuel Mason, who found leaves of Euonymus 

 europcBUS in the neighbourhood of Newton Abbot with margins 

 more or less rolled upwards and discoloured (sometimes with a 

 purplish tint), the rolled part covered with a felt of minute hairs. 

 This gall results from the presence of the mite Eriophyes con- 

 volvens Nalepa. It has been recorded from many places in 

 Northern and Central Europe, also France and Italy. 



I have also to note the occurrence of galls caused by the mite 

 Eriophyes pacli Nalepa on leaves of Prunus spinosa. This gall 

 differs from the very familiar one caused by E. similis Nalepa in 

 its greater pubescence, its position (usually on the midrib, not on 

 the margin), and in the absence of marked swelling around the 

 aperture which is more hairy than that of E. similis. I observed 

 this gall in hedges in the Stours district, near Shaftesbury, Dorset. 



The galls mentioned above were found after the final proof- 

 sheets of my British Plant-Galls had gone to press, consequently 

 are new additions to the classified catalogue of galls given 

 therein. 



The well-known cuckoo-spit insect or froghopper {Philcemis 

 spumarius) is not classed as a gall-causer, but as it causes altera- 

 tion in form of certain plants which it affects, it appears to 

 merit that distinction. One of its favourite plants is (Enanthe 

 crocata, on which it usually takes up its position at the apex of 

 the peduncle immediately below the pedicels. There it drives in 

 its proboscis, sucks up the sap, and blows the familiar frothy 

 patches which are necessary for its well-being, serving to protect 

 it from heat, and to keep the body moist. The pedicels adjacent 

 to the seat of its operations do not lengthen, and are slightly 

 thicker than normal ones. Instead of attaining two inches they 

 seldom exceed half an inch in length, hence the flower-heads are 

 closely adjacent and form a globose mass. The stem of Linaria 

 vulgaris becomes proliferous when attacked by the froghopper, 

 producing a tuft of short branches above the point of attack. 



It may be of interest to note that the remarkable and rare galls 

 on (Enanthe crocata, caused by the fungus Protomyces macro- 

 sporus Unger, were very conspicuous in June on the banks of the 

 canal at Newton Abbot. The equally rare galls on Convolvulus 

 arvensis caused by the mite Eriophyes convolvuli Nalepa, were 

 abundant on Berry Head, Brixham, on the slopes beyond the 

 second fort at the spot where I first observed them three years ago. 



BIBLIOGRAPHICAL NOTES. 



LI. — The Dates op Hooker's • Flora Antarctica.' 



When I published the dates of the constituent parts of Sir 

 Joseph Hooker's Flora Novcb Zealandice and Flora Tasmanice in 

 Bull. Herb. Boiss. i. (1893) p. 299, and Journ. Bot. xlvii. (1909) 

 pp. 106-107, I was unable to do as much for the earlier Flora 

 Antarctica, for no dates were noted in the copy of that work 



