

156 BOTANICAL GAZETTE [February 



The sixth part of Vol. 9 concludes the presentation of the Agaricaceae by 

 Murrill, 5 5 genera being presented, which include 165 species, 16 of which 

 are described as new. The largest genus is Clitocybe, with 88 species and 

 including 13 of the new species. The part closes with a list of corrections and 

 a bibliography for the volume. — J. M. C. 



Jackson's glossary.— A third edition of this well known volume has 

 appeared. 6 The development of subjects in botany and the consequent 



nology 



true 



a 



jw edition imperative. Especially is this 

 recently coined terms" in ecology. No 



isary 



trustw 



>rthy as such a book can be. It 

 contains approximately 21,000 terms, so that it must be fairly representative 



terminology. With 



ossary 



J. M. C. 



Correspondence of Linnaeus. — Under the editorship of Hulth, the 

 correspondence of Linnaeus is to be published in a series of volumes, the first 

 one of which has just appeared. 7 The collection includes letters "from and to" 

 Linnaeus. The extent of the correspondence is indicated by the fact that this 

 first volume, of over 400 pages, includes 49 correspondents listed under the 

 first two letters of the alphabet. Most of the letters are in Latin, and give an 



period. — J 



ology 



NOTES FOR STUDENTS 



Cecidiology. — Three interesting American papers on the histology of galls 

 have been published recently and demonstrate the increasing interest in the 

 study of pathogenic structures. 



Stewart 8 presents a very interesting paper on the anatomy of Peri- 

 dermium galls. The studies were made from Peridermium cerebrum Pk. on 

 Piniis Banksiana Lamb. Galls of various ages were used, but all of them 

 from young branches. It appears that the infection usually takes place during 

 the first year's growth of the shoot. The woody portion of the gall was very 

 distinct from the normal tissue. The author summarizes his results as follows: 



5 Op. ciL Agaricaceae, by W. A. Murrill. 9:375-426. 1916. 



6 Jackson, Benjamin Daydon, A glossary of botanic terms, with their derivation 

 and accent. 8vo. pp. xii+428. Philadelphia: Lippincott. 1916. $3.00. 



' Hulth, J. M., Bref och Skrifvelser af och till Carl von Likne. Vol. I. 

 Adanson-Brunnich. 8vo. pp. viii+429. Upsala: Akademiska Boktryckeriet. 

 1916. 



8 Stewart, Albax, Notes on the anatomy of Peridermium galls. Amer. Jour. 

 Bot. 3:12-22. 1916. 



