506 SUMMARY OF CURRENT RESEARCHES RELATING TO 



F. Kriiger * has studied the stalk disease of cereals said by Frank 

 to be caused by Ophiobolus herpotrichus. After long observation and 

 culture experiments he finds that, while Ophiobolus as a rule attacks 

 wheat, rye is injured in the same manner by Leptosphseria ; he found 

 several other fungi causing the same injury to the stalks. 



W. Ruhland f found a destructive fungus on Asparagus. Only 

 the conidial form was present, and was somewhat like Monilia. He 

 names it Moniliopsis Aderholdi g. et sp. n. 



Under the title Carnation Alternariose, F. L. Stevens and J. Gr. 

 HallJ describe a disease of carnations caused by the Hyphomycete, 

 Altemaria Dianthi sp. n. The disease manifested itself as spots, mostly 

 on the leaves, but sometimes on the stems, especially at the nodes. 

 Cultures and inoculation experiments were carried out, proving con- 

 clusively the harmful nature of the fungus. The most damaging 

 infection occurs at the leaf axils, where water collects and aids in the 

 germination of the fungus spores. 



A. Stift § reviews work recently published on beet and potato 

 diseases caused by insects, fungi, or bacteria. He notes especially leaf- 

 rolling, a disease described by Arnim as of immense economic danger. 

 Stift does not think it of so much importance. The disease is said to 

 be caused by a Fusarium. 



Foes, B. — Kouilles des Cereales. (Rusts of cereals.) 



[Sketch of recent work, especially in reference to agriculture.] 



Montpelier : Coulet et fils, 1908, 116 pp. 

 See also Bot. Centralbl., ex. (1909) pp. 546-7. 



Fries, Rob. E. — Ueber einige Gasteromyceten aus Bolivia und Argentinien. 

 [A list, with descriptive notes, of 27 different species.] 



Arkiv Bot., viii. (1909) No. 11, 34 pp. (4 pis.). 

 See also Ann. Mijcol., vii. (1909) p. 191. 



Gard — L. Oidium du Chine pendant l'ete et l'automne de 1908 dans le Sud- 

 Ouest de la France. (Mildew of the oak in south-west France in 1908.) 



[The author suggests that frequent cutting of trees may predispose them to 

 disease.] Journ. Bot., xxi. (1908) pp. 253-6. 



See also Bot. Centralbl., ex. (1909) p. 547. 

 Hennings, P. — Fungi paraenses iii. 



[A large number, mostly of microfungi, are listed ; there is one new genus 

 described, Haplanopsis (Mucedinacese).] 



Hedwigia, xlviii. (1908) pp. 101-17. 



Murrill, W. A.— Boletaceae of North America. 



[A re-arrangement of the genus Boletus, with introduction of new genera ; 

 these are : Boletinellus, Bulveroboletus, Boletcllus, and Suillellus.~\ 



Mycologia, i. (1909) pp. 1-18 (1 col. pi.). 

 Rehm — Ascomycetes exs. Fasc. 43. 



[A number of new species and varieties are described. Many of the species 

 are from Brazil.] Ann. Mycol., vii. (1909) pp. 134-40. 



Spegazzini, C. — Fungi aliquot paulistani. (Fungi from Sao Paulo.) 



[A large number of new species of -microfungi are described ; the new genera 

 are Dimerosporiella, Hyalotheles, Dimeriella, and Euclarluca.~] 



Rev. Museo de la Plata, xv. (1908) pp. 7-48 (fig.). 

 See also Hedivigia, xlviii. (1908) Beibl., pp. 59-60. 



* Arb. k. Biol. Aust. Land. Forstw., vi. (1909) pp. 321-51. 



t Tom. cit., pp. 71-6 (3 figs.). 



X Bot. Gaz., xlvii. (1909) pp. 409-13 (3 figs.). 



§ Centralbl. Bakt., xxiii. (1909) pp. 173-92. 



