NOTES AND EXHIBITS. 235 



to the Hessian Fly. Inspector F. F. Foster, of the Stock Branch, 

 wlio collected the specimens, reports that it is very abundant. 



Mr. Basset Hull showed a small collection of Land and Fresh- 

 water Molhisks, obtained by Gunner F. B. Hull at various points 

 in France, on the Western Front. 



Mr. E. Cheel exhibited a series of specimens. — (1) Seedling- 

 plants of Hakea dactyloides and Banksia serraUi from Hill Top, 

 Main Southern Line, and specimens of roots from full-grown 

 plants of Grevillea montana from Hill Top, and G. punicea from 

 the Sydney District, to show their peculiar roots, which exhibit 

 an excessive production of small, fibrous roots, originating, at 

 intervals along the main roots, in clusters, somewhat resembling 

 the "Hairy-root Disease of the Apple-tree"; these are being in- 

 vestigated for Mycorhiza. — (2) Seedling- plants of Tephrosia 

 grandijlora^ which have a simple ovate leaf, followed by a tri- 

 foliate leaf, then a pinnate leaf, although only about 2 inches 

 high; they have comparatively large, triangularly-shaped nodules 

 on the rootlets, measuring from 5-7 mm. across. — (3) Two forms 

 of Oxalis cornicidatus, with the following distinctive characters: 

 {a I Plants with small, pale green leaves, and small, lemon-yellow 

 flowers : {b} Plants with larger leaves, which, together with the 

 stems, are of a purple or bronze-green colour, and each petal 

 more or less spotted or splashed at the base with four purplish 

 marks. Corolla slightly larger, and of a deeper yellow than 

 those of (a). It is interesting to note, that Sigeroka Nohara, in 

 a paper entitled "Genetical Studies on Oxalis" (Journ. College 

 of Agric. Imperial University of Tokyo, vi., p. 165, 1915), has 

 come to the conclusion that 0. cornicidata is a composite species, 

 which, so far as his investigations, extending over a period of 

 about six years, have shown, includes at least four different 

 biotypes. The plants common in the Sydney District agree in 

 some respects with those in the neighbourhood of Tokyo, but 

 the small-leaved form seems somewhat different from those men- 

 tioned by Nohara. -(4) Specimens of Ruhus lacinialus Willd., 

 commonly known as the "Cut-leaved or Parsley-leaved Bramble," 

 from near Raymond Terrace, collected during a recent visit to 



