BOOK-NOTES, NEWS, ETC. 263 



[Linne] in Leyden, sends his compliments," which proves that 

 he was hving more tlian twenty years after he had joined with 

 Gronovius in printing the first edition of the Systema Naturm. 

 B. D. J. 



BOOK-NOTES, NEWS, dc. 



The method of research by growth experiments has had for 

 one result the addition to the fungus-flora of a very large number 

 of species. Many of the moulds are polymorphic, and some 

 change in nutrition, &c., at once induces a corresponding change 

 of form in the fungus. Dr. Eichard Westling {Ueber die Griinen 

 Spezies der Gattung Penicillium ; Arkiv for Botanik ii. n. 1 : 

 Upsala, 1911), however, considers that he has avoided the danger 

 of mistaking growth forms for species by selecting the spore-size 

 as his standard character, since this is, he finds, unaffected by 

 altered conditions. The old familiar Penicillium glaucum is only 

 one of many green forms. Westling has verified, by culture and 

 otherwise, forty-four allied species ; some fourteen species he has 

 accepted as good, while seventeen species have been rejected as 

 imperfectly described, &c. Most of the species are illustrated by 

 text-figures. The monograph will be indispensable to all future 

 students of Penicillitmi. — A. L. S. 



The recent number (June 29) of the Journal of Genetics con- 

 tains two botanical papers. Mr. W. Neilson Jones, of University 

 College, Eeading, treats of " Species-Hybrids of Digitalis," which 

 are contrasted with the phenomena exhibited by (Enothera ; this 

 is illustrated by numerous diagrams and by three plates, one in 

 colour — the colour-plates of the Journal are always of remarkable 

 excellence. Dr. Keeble writes on " Gigantism in Primula sinensis,'' 

 which he contrasts with observations already published on the 

 same phenomenon in other plants ; this also is fully illustrated. 

 The general get-up of the Journal leaves nothing to be desired. 



The last number (June 28) of the Journal of the Linnean 

 Society (Botany) is entirely occupied by an elaborate " Investiga- 

 tion of the Seedling Structure in the Structure in the Legumi- 

 nos(B," illustrated by nine plates, by Mr. R. H. Compton, Junior 

 Demonstrator of Botany in the University of Cambridge. 



No. 3 of the third volume of Contributions from the Botanical 

 Laboratory of the University of Pennsylvania contains the de- 

 scription (with plates) of Nepenthes Merrilliana and N. truncata, 

 two new species from the Philippines, by Dr. Macfarlane; also 

 papers on "Leaf-Movements in the Oxalidacece," by E. B. Ukich ; 

 on "Bacteria and other Fungi in Relation to the Soil," by Dr. D. 

 Rivas ; on " The SeedHng of Commelina commimis," by Martha 

 H. Hollinshead ; and a long report on the " Phytophenology " of 

 Philadelphia by Dr. Marian MacKenzie. 



The new number (Part 5) of the Transactions of the British 

 Mycological Society completes the third volume, of which a very 

 full index is included. There are the usual features : — an account 

 of the Spring (Teesdale) Foray and of the Autumn (Taunton) Foray, 



