ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 71 



Lichen Flora of Algiers.* — J. Steiner publishes a second list of 

 lichens from Algiers, from material collected by Fr. v. Kerner. He 

 determines a number of new species and one new genus Gonohymenia. 

 The collection is preserved in the Botanical Museum of the University 

 at Vienna. 



Umbilicaria in N. America.f — C. W. Harris continues her study of 

 the lichens of the United States, and monographs briefly the genus 

 Umbilicaria, in which she merges Gyrophora. She describes all the 

 twelve species in simple terms. Four of the species are photographically 

 figured in the plate. 



Californian Lichens.J — A. Zahlbruckner describes a number of new 

 species sent to him by H. E. Hasse from Los Angeles. He finds one 

 new genus among the number, Hassea, founded on Verrucaria bacillosa, 

 and placed by him in a group Pyrenidiacete. These are all characterised 

 by the Nostoc or Scytonema character of the gonidia and by the simple, 

 straight apothecia. 



Perforation of Vine-Leaves.§ — V. Brizi finds that this is due to 

 the action of a fungus, Glaiosporium ampelophagum, which attacks the 

 young leaves, causing a yellowing of the tissue. Later, the pustules of 

 the fungus appear on the spots, and in time the diseased part of the leaf 

 drops out. 



New Parasitic Botrytis.|| — A disease of the fruits of Diospyros 

 Kaki has been found by V. Brizi to be due to a species of Botrytis, 

 which he has called B. Diospyri. It attacks the calyx, and the fruits 

 drop off before they are ripe. 



Black Spot of the Apple.lf — The mould Fusicladium which produces 

 black spots on apples and pears has been causing great loss t<> fruit- 

 growers in Australia and Tasmania. D. McAlpine has given a descrip- 

 tion of the fungus, with an account of its life-history. The winter stage, 

 Venturia inaiqualis and V. pyrinum, have been found by him recently, 

 but he considers that the mould is usually propagated from year to year 

 by the conidia which become entangled in the hairs and bud-scales, and 

 that the appearance of the Venturia stage is unnecessary to the continued 

 life of the parasite. He gives a detailed account of spraying experiments 

 and instructions as to the best sprays to use and the method of preparing 

 the mixtures. 



Diseased Pelargoniums.** — G-. Massee has found that the South 

 African rust Puccinia granulans, which grows on native Geraniacese, had 

 transferred itself to the leaves of pelargoniums imported from England 

 and France. The diseased leaves were sent from the Transvaal. 



* Verli. d. k. k. Zool. Bot. Ges. in Wien, lii. (1902) pp. 469-87. 



t Biyologist, v. (1902) pp. 89-92. 



I lieih. z. Bot. Centralbl., xiii. (1902) pp. 149-63. 



§ Le Staz. Sperim. Agrarie Ital., xxxiv. (1901) pp. 774-88. Cf. Centralbl. Bakt., 

 is. U9U2) p . 613. 



|| Le Staz. Sperira. Agrarie Ital., torn, cit., pp. 767-77. Cf. Centralbl. Bak>., 

 loc. cit. 



U Bull. No. 3 Dept. of Agric. Victoria, 1902, 29 pp. (4 pis. and 2 tigs.). 



»* Journ. Roy. Hurt. Soc, xxyii. (1902) pp. 172-3 (5 figa.). 



