110 



Contains a full page picture of a large tree of Jnuiperus 



Virgiiiiaria at Wawa^ Pa. 



Rosafoliolosa. (Garden and Forest, ill. lOO, fig. 22.) 



Rosin Weed. — An Examination of the resinous Exudation of, L. 



E. Sayre. (Trans. Kan. Acad. Sci. xi. 103.) 



The author states that the gun] from Silphinm laciniaium is 

 completely soluble in chloroform and benzoic, which, upon 

 evaporation, leave a transj)arent residue. Its probable value in 

 microscopic mounting is mentioned. 

 Sapotacece a Dr. A. Glaziou Iccice, C. Rannkiacr. (Vidcns. 



Medd. Naturh. Foreninj^ Kjobenhavn. 1889. 



New species are dcscrib 

 lon^ T.Hcunia and CJirysopJi) 

 Stipules in Certain Dieotyh 



^ 



Miniusop 



donous Leaves of the Dakota Roeh 

 'o'nifeanee of. F. H. Snow. (Trans. 



Kans. Acad. Sci. xl. 33-35, illustrated). 



The sii^nificance refers to the fact that the stipules of these 



Dakota fossil leaves have a prevaiHng unilateral position as dis- 

 tinguished from the modern bilateral arrangement, and that they 

 show a gradual change from the solitary entire form to the bi- 

 lateral pair. Leaves of Bettdites Vestii, var. ohtusa, var, incvqui- 

 lateralis, var. latifolia, and var. subintegrifolia and Viburnum 

 Dahotensc, var. lo)igifoHum and var. ovatifolium, are figured. 

 The New American Botanist and Elorist. By Alphonso Wood. 



Revised and edited by Oliver R. Willis. (Svo. pp. 220 + 449. 



New York, 1 889). 



The ** new" part of this work consists of Dr. Willis's revision 

 of the Lessons, already noted in this journal, bound in with the 

 systematic portion of the old *' Botanist and Florist," and as the 

 former are printed in much larger type than the latter, the book 

 has an unequal appearance, and we must add, an unequal value. 

 We think it was hardly fair to call it *' new " ; we wish it were 

 otherwise. However, the great merit and value of Professor 

 Wood's methods of description have become so widely recog- 

 nized that the book will remain valuable for many years. There 

 are numerous species that might be added (we note about a dozen 

 in the first 30 pages). There are numerous mistakes that might 

 be corrected, and the nomenclature is bad, although in this re- 



