ROSACEAE 



357 



Loew (Silesia) saw a wasp, Vespa media Retz. 5, skg. ('Beitrage,' p. 33); 

 and Warnstorf (Brandenburg) numerous bees and humble-bees. MacLeod (Flanders) 

 noticed 5 long-tongued bees, 4 short-tongued bees, 2 wasps, an ant, 3 hover-flies, 

 5 other flies, 5 beetles, and a few Lepidoptera (Bot. Jaarb. Dodonaea, Ghent, vi, 1894, 

 p. 317). Plateau (Belgium) saw Apis, Bombus hypnorum L., B. lapidarius L. ; and 

 also numerous moths, e. g. Scoliopter3'S libatrix L. 



In Dumfriesshire, Apis (common), 3 humble-bees, and 2 hover-flies were 

 recorded (Scott-Elliot, ' Flora of Dumfriesshire,' p. 55). 



Morawitz gives a bee, Nomada ochrostoma K., for St. Petersburg. 



Friese observed 2 bees in Mecklenburg: i. Andrena fucata .Sw., freq. ; 2. A. 

 fulvida Schenck, rare. 



Hofi"er gives the following bees for Steiermark. — 



I. Bombus agrorum F. 5 and 5; 2. B. hypnorum L. 5, occasional; 

 pratorum, Z. 5 and 5, very common, J ; 4. B. terrester L. t. 



Schmiedeknecht, on the authority of S. Brauns, records Bombus jonellus K. S. 



B. 



Fig. III. Rubus saxaiilis^ L. {z!i\.^T Herm. Miiller) A Lateral view of flower ( x 7), 

 B. The same, in iong;itudina1 section. 



841. R. spectabilis Pursh. — 



Visitors. — Alf ken observed the following bees at Bremen : all skg. and po-cltg. — 

 I. Apis mellifica Z. 5> freq. ; 2. Bombus jonellus K.^\ 3. B. lucorum Z. 5; 

 4. B. muscorum .^.5; 5. Podalirius acervorum Z. 5. 



842. R. saxatilis L. — Hermann Miiller (' Alpenblumen,' pp. 215-16) describes 

 the white flowers of this species as protogynous, with persistent stigmas. The 

 stamens are about 40 in number. When the flowers open the stigmas are already 

 mature : the outer stamens now become erect, and their anthers dehisce, while the 

 inner ones remain curved inwards, so that the stigmas are for a time protected 

 against automatic self-pollination. As the petals incline together above the nectar- 

 secreting receptacle only a small passage of access is left. Visitors at first effect 

 cross-pollination, subsequently self-pollination as well. The latter always takes place 

 automatically should insect-visits fail (Miiller, Warming). 



Visitors. — Herm. Miiller observed 3 bees and an Empid in Switzerland. 



