108 



Within the definition of Fungi and are treated among the several 

 divisions of that class. While no one is perhaps at the present 

 time seriously questioning the algo-fungal hypothesis, the wisdom 

 of splitting up a great natural group may very properly be 

 doubted. We beheve that the plants will long be studied as 

 Lichens, whatever may be their nature and origin. 



The term Protophyta is retained for the lowest plants as a 

 matter '* of convenience rather than of principle/' and they are 

 considered under the headings Schizophyceae and Schizomycetes; 

 the first includes, besides Protococcoidese and Cyanophycese, the 

 Diatomaceae, here removed from their relationship to the Des- 

 mids in the class Conjugatae, on the plea that their method of 

 reproduction is not sexual, in w^hich position we presume Prof. 

 Bennett will not find universal agreement. 



The terminology is considerably revised, and a number of . 

 new terms added. The word " reproduction ** is restricted to a 

 process resulting in the formation of one or more new individuals, 

 all cases of non- sexual multiplication being described as " propa- 

 gation " ; similarly, bodies which are the direct result of sexual im- 

 pregnation are termed ''sperm/' as distinguished from ''spore, 



which term Is restricted to cells for vegetative propagation, and 

 words in which these syllables occur are made to correspond. 

 The book is thoroughly illustrated, clearly written, and has inter- 

 spersed abundant references to the most important literature. 

 Botanists should be grateful to its distinguished authors for their 

 great contribution to our pleasure and profit, N. L. B. 



Lu/ienes Novce Zelandi<2, 



Dr. Nylander of Paris has recently published a work with the 

 above title (Paris : Paul Schmidt, pp. 151, 188S) giving 371 spe- 

 cies, which is the fullest account of New Zealand lichens yet is- 

 sued. Added are some corrections and additions to his " Lichens 

 of Fuegia and Patagonia," A few points are of interest to 

 American llchenologists. 



On page 58 is described a new Placodhim, P. constipens ; 

 thallus fruticulose-csespitose, orange colored, erect, the lacini?e 

 flat; apothecia terminal, of the same color ; spores oblong, sim- 

 ple, .010-14X.0045-65 mm. Farallone Islands, San Francisco. 



