194 PATHOLOGY [BoT. Absts., Vol. VIII, 



corn smut idientical with head smut of sorghum (Sphacelotheca reiliana). Symptoms are 

 given in detail. — W. H. Tisdale. 



1345. FiGUEROA, C. A. The mottling disease of cane and the sugar production of Porto 

 Rico. Jour. Dept. Agric. Porto Rico 3*: 35-41. 1919 [1920].— "Where the infection is most 

 intense the sugar production has diminished most heavily." Statistics are presented of the 

 cane acreage and amount of sugar manufactured in Porto Rico in the crops of 1917 to 1919. 

 In Cayey, where the disease is most severe the acreage of 1918 and 1919 was nearly double 

 that of 1917 but the production of sugar was reduced 50 per cent. For the whole island, on 

 the basis of the crop of 1917, the reduction is 30 per cent. — D. Reddick. 



1346. Hamblin, C. O. Downy mildew of the vine. Agric. Gaz. New South Wales 32: 

 49-50. S fig. 1921. — Grape downy mildew was first observed in New South Wales in 1918. 

 The disease appears early in the Season but may not make much headway. It overwinters 

 by spores and probably also by hyphal filaments. Notes on control are given. — L. R. 

 Waldron. 



1347. LiNDFOES. [Rev. of: Henning, Ernst. Anteckningar om gulrosten. [Auf- 

 zeichnungen iiber den Gelbrost.] Centralanst. Forsoksv. p. Jordbruksomr§.det Medd. 192. 

 1919.] Zentralbl. Ges. Landw. 1: Entry 731. 1920. — Henning's continuation of the list of 

 Eriksson and Henning (Die Getr eider oste) on yellow rust years, contains an incorrect state- 

 ment. On page 10, 3rd line from the bottom for "salweizen, Boreweizen," read "Land- 

 weizen." Footnote 2 should be struck out. — D. Reddick. 



1348. Mackie, W. W, Head smut in sorghum and maize. Phytopath. 10: 307. 1920. — 

 Author notes occurrence of head smut {Sorosporium reilianum) of sorghum, and smut of corn 

 in California. — W. H. Tisdale. 



1349. Stillinger, C. R. Apple black rot (Sphaeropsis malorum) in Oregon. Phytopath. 

 10: 453-458. 1920. — The first report of Sphaeropsis malorum, from Oregon and probable occur- 

 rence in Washington and California. The fungus is of small economic importance in orchard 

 and storage. Morphological and physiological studies show the necessity of study of strains 

 of Sphaeropsis and Diplodia. — R. B. Streets. 



1350. Thomas, C. C. Coix smut. Phytopath. 10:331-333. 1 fig. 1920.— Coix smut 

 ( Ustilago coicis Bref.) is reported in this country for the first time on plants of Coix lachryma 

 jobi grown from seed sent from the Philippine Islands. — G. Wineland. 



1351. Ttjbeuf, C. von. Einbruch der Kiefernmistel nach Bayern von Siiden. [The 

 invasion of Bavaria from the south by the pine mistletoe.] Naturw. Zeitschr. Forst- u. Landw. 

 18:230-232. 1920. — In July 1919, an outbreak of mistletoe on pine was discovered on the 

 southeast slope on the right hand bank of the Loisach between Eschenlohe and Oebrau. In 

 June of 1920, another infected area was discovered on the east side (west exposure) of the 

 Loisach valley between Garmisch and Eschenlohe. The Alps have previously offered an 

 effective barrier to the mistletoe, and there is little doubt but that the parasite was carried 

 across by the thrush. Tubeuf suggests that the infected areas be gone over and the mistletoe 

 removed and destroyed while the infection is still small; further spread would greatly increase 

 the work of suppression. The invasion by this mistletoe resembles that of Loranthus of oak, 

 which was brought up from Bohemia through the Elbe Valley by thrushes into Saxony, and 

 is at present unwisely protected by law. — /. Roeser. 



1352. Weimer, J. L. The distribution of buckeye rot of tomatoes. Phytopath. 10: 172. 

 1920. — This disease, caused by Phytophthora terrestria, occurred at Arlington, Virginia, in 

 1919. The known range northward is thus considerably extended. — W. G. Stover. 



