ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 331 



In the same Journal W. 0. Gloyen* describes Ascochyta clema- 

 Mdina, the cause of stem-rot and leaf-spot of Clematis. It spreads 

 from the leaf -stalk to the stem, which it girdles at the nodes, and it 

 finally kills the whole plant. Successful inoculations were made of 

 various stems of Clematis, and leaf-spot was induced by sprinkling with 

 the spores. 



W. 0. Glover t describes a disease of Clematis causing rotting of the 

 stems and mottling of the leaves due to Ascochyta cUmatidina. The 

 fungus attacks the leaf, forming blotches on the surface. The mycelium 

 then passes down the petiole as far as the axil and forms a zone of 

 infection which induces the death of the plant tissues above the zone. 

 Artificial cultures of the fungus were made and successfully inoculated 

 on healthy plants. Advice is given as to combating the disease. 



W. N. C. Belgrave % describes the fungi that attack the coffee- 

 plant in Malaya. Hemileia vastatrix is present, but not abundant ; 

 other parasitic fungi attack the Hemileia, and probably reduce it con- 

 siderably. The foliage is further attacked by Fhyllosticta, Conio- 

 thyrium, and a species of Colletotrichum. 



The stems are killed by two fungi, Diplodia and Colletotrichum, but 

 80 far the damage is slight. Among the fungi observed on the fruits are 

 Pestalozzia Coffeae, Hemileia vastatrix, and species of Stilbum, Fusarium 

 •Coniothyrium, and Capnodium, the latter in conjunction with scale 

 insects. 



Ascochyta hortorum was found by L. Gabotto § to have attacked 

 artichokes in the neighbourhood of Genoa, in Italy. A number of 

 brown pycnidia were found on the scales and peduncles, and on the 

 insides of the rotting receptacles. Though the same fungus had 

 attacked various economic Solanace* it had not previously been found 

 -on artichokes. 



L. Petri and A. Adani 1| have investigated a disease of the cones of 

 Finns Finea due to Sphseropsis necatrix sp. n. There are two forms of 

 the disease, " pine gallerone," which appears in May or June, and " pine 

 pagliose," in September and October. The same fungus causes the 

 ■disease in both instances, but in the spring attacks the cones lose 

 ■considerably in weight. In both cases there is a discoloration of the 

 scales, exudation of resin, destruction of the endosperm, and the presence 

 of mycelium and pycnidia. In the autumn form, owing to the more 

 mature condition of the cones, the infection proceeds more slowly, the 

 mycelium penetrates between the scales and attacks the soft parenchyma, 



* Journ. Agric. Eesearch, iv. (1915) pp. 331-2 (5 pis.). See also Zeitschr. Pflan- 

 zeukr., xxvii. (1917) pp. 51-2. 



t New York Agric. Exper. Stat., Geneva, Tech. Bull., ii. (1915) p. 3-14 (4 pis.). 

 See also Bull. Agric. Intell. Rome, vii. (1916) pp. 1043-4. 



X Agric. Bull. Fed. Malay States, iv. No. 4 (1916) pp. 111-13. See also BuU. 

 Agric. Intell. Rome, vii. (1916) p. 1040. 



§ Riv. Patolog. Veg., vii. (1916) pp. 45-6. See also Bull. Agric. Intell. Rome, 

 Tii. (1916) p. 1041. 



II Ann. R. Accad. Agric. Torino, lis. (1916) 23 pp. (12 figs.). See also Bull. 

 Agric. Intell. Rome, vii. (1916) pp. 1044-5. 



