158 NOTKS AND EXHIBITS. 



obtained experimentally by introducing the larvse (specimens of 

 which were exliibited) of the parasite, found in the mesenteric 

 glands of cattle from various parts of New South Wales. The three 

 above-mentioned species, excepting No. 1 (from West Australia), 

 had not pi'eviously been recorded from these hosts in Australia. 



Mr. Cheel showed plants of, (1) Acacia jntgioni/orinis Wendl., 

 from Kensington, which produces new plants onl}^ from sucl<ers; 

 Mr. A. A. Hamilton and the exhibitor had watched the plants 

 for seeds, for several years, without any success. (2) Greinllea 

 pimicea l>. Br., which, under cultivation in the Botanic Gardens, 

 sent out several suckers from which new plants were established, 

 2-3 feet from the parent-plants. (3) Flowering specimens of 

 other plants of the same species were exhibited, showing twin 

 styles in several of the fiowei's; this peculiar freak was first 

 noticed by Mr. W. F. Blakeh^ in August, 1906, and again by 

 the exhibitor, in September, 1910. (4) Vitis clematidea F.v.M., 

 with enlarged yam-like rootstocks, from Wamberal and Peak- 

 hurst; the exhibitor's attention was first drawn to the tuberous 

 growth of this plant, by Mr. L. Gallard, of Narara; it is also 

 mentioned by Woolls, in Mueller's Fragm. v. 210. Mr. Cheel 

 also stated that during the past three months, the potato-blight 

 {Phytophthora infestans I )e Barg) had caused great havoc among 

 the potato-crops grown at Penshurst. The disease had been 

 suspected of infecting other members of the order. Nevertheless, 

 plants referable to six species - SoJaniivi jasminoides Paxt., S. 

 nigrum Linn., S. armatutn R. Br., <S'. cinereum R. Br., Datura 

 stramonium\J\x\\\.^ and Physalis minima Linn.— growing actually 

 in the midst of the diseased potatoes, remained wholly unaffected, 

 even though, on several occasions, s})ores had been sown on the 

 leaves during showery weather or when otherwise damp. 



Dr. Greig-Smith exhibited specimens of apples affected with 

 Bitter Pit. The corky areas are remarkably sterile, and there is 

 no diffusion of the pits, as might be expected if the disease were of 

 microbic or fungoid origin. Some years ago Dr. Cobb suggested 

 that the pitting might be a form of stigmonose, and the appear- 

 ance strongly favours the suggestion that the pits are the result 



