1 84 The Botanical Gazette. [J une - 



Minor Notices. 



The study of aquatic plants is rapidly increasing. Since Dr. H. 

 Schenck published his two large papers upon the anatomy and biology 

 of these forms, a French botanist, Mr. C. Sauvageau has given some 

 very exact observations upon the anatomy of several aquatic monocoty- 

 ledons. It may be of interest to botanists in this country to know 

 these works, which certainly encourage further studies. They are 

 all published in Journal de Botanique and the titles are as follows: 

 Sur un cas de protoplasme intercellulaire (1889); Sur la racine du 

 Najas (1889); Contributions a Peptide du systeme mecanique dans la 

 racine des plantes aquatiques: Les Potamogeton (1889); ditto-. Zostera, 

 Cymodocea et Posidonia (1889); Observations sur la structure des feuil- 

 les des plantes aquatiques: Zostera, Cymodocea et Posidonia (1890); Sur 

 la feuille des Hydrocharidees marines: Enhalus, Thalassia et Halo- 

 phila (1890): Sur la structure de la feuille des genres Halodule et Phyl- 

 lospadix (1890); Sur la tige des Zostera (1891).— T. H. 



Professor F. Lamson-Scribner is the author of a small, but very 

 readable and useful book on fungous diseases of the grape and other 

 plants, just published by J. T. Lovett Co., of Little Silver, N. J. The 

 diseases of the grape have recently been receiving very large attention, 

 and from no one more than Professor Scribner. He, therefore, speaks 

 first-hand and does not merely compile current information. Other 

 diseases treated are those of the apple, pear, peach, plum, etc. The 

 diseases are not only described in a simple and recognizable way, but 

 the best known treatment is suggested. The book should be in the 

 possession of every horticulturist. 



The third biennial report of the California State Board of Forestry, 

 for the years 1889-90, has just appeared. It is a voluminous pamph- 

 let of over 200 pages, but is full of information concerning the for- 

 ests of California. The well-known botanist, Mr. J. G. Lemmon, has 

 collected a vast array of facts, and his descriptions are always graphic. 

 An invaluable part of the report will be found in the 30 artotype 

 plates, representing the general habit of characteristic trees and some- 

 times even their detailed structures. These photographic reproduc- 

 tions are always useful, for they represent a set of facts of permanent 

 value, no matter how opinions concerning them may change. 



Dr. Roland Thaxter has issued a paper on the Connecticut spe- 

 cies of Gymnosporangium, as Bulletin 107 of the Connecticut Agricul- 

 tural Experiment Station. A new species is characterized, viz. G 

 nidus-avis, the specific name referring to a "birds-nest" distortion it 

 produces on Jumperus Virginiana. The Roestelia stage has been ob- 

 served on quince and service-berry. 



