between the stigma and the barren stamen, through which open- 

 ing the insect is obliged to obtain the honey. The glandular 

 hairs of the pedicels are absent some distance below the blossom 

 thus offering no interference to the alighting insect. When the 

 stamens uncoil and the pollen ripens the style becomes reflexed 

 and the somewhat rigid stamens are forced against the insect 

 visitor, the weight of the latter, who is always obliged to work 

 from below, causing the blossom to sag greatly. 



Edward W. Berry. 



Passaic, N. J., 



December 2, 1902. 



REVIEWS 



A recent Monograph of Campanula rotundifolia and its Allies 



A monograph of Campanula rotundifolia and its allies has 

 recently been issued from the University of Vienna by J. Wita- 

 sek. It appears under the title " Ein Beitrag zur Kenntnis der 

 Gattung Campanula."* It treats only of the species belonging 

 to the C. rotundifolia group. This group is divided into 3 series, 

 15 superspecies and 32 subspecies. C rotundifolia in a broad 

 sense, i. e., taken as a superspecies, contains 1 1 subspecies. Of 

 these C. rotundifolia in limited sense is distributed over almost 

 the whole of Europe and northern Asia and also credited to the 

 southwestern United States and Mexico. The other European 

 species are local or of very limited range, one from France and 

 Switzerland, one from Switzerland and six from Austria, the 

 Turkish peninsula and Italy. North America is credited with 

 six species : C. rotundifolia L., C. intercedcns Witasek, C. pctiolata 

 DC, C. dubia DC, C. Giesekiana Vest, C. heterodoxa Vest. 



Campanula intercedeus Witasek is our so-called C. rotundifolia 

 of the eastern states. Witasek points out the following char- 

 acters to distinguish it from C. rotundifolia of Europe : The tall 

 habit, the long one-flowered almost erect branches of the inflores- 

 cence, the lighter color of the plant, thinner leaves and especially 

 the hairiness of the stem. In C. rotundifolia, if hairy at all, the 

 hairs are scattered ail around the lower portion of the stem, 

 while in the American plant they are confined to definite decur- 



*Abh. K. K. Zool.-Bot. Gesellsch. Wien, i 3 : 1-106. 1902. 



