2io ANGIOSPERMAEDICOTYLEDONES 



Visitors. Herm. Miiller (H. M.) in Westphalia, and Buddeberg (Budd.) in 

 Nassau, observed the following Apidae. 



i. Andrena schrankella Nyl. S, skg. (H. M.); 2. Apis mellifica Z. $, very freq., 

 skg. (H. M.); 3. Chelostoma nigricome Nyl. 5, skg. (H. M.); 4. Cilissa haemor- 

 rhoidalis F. S, do. (H. M., Budd.); 5. Halictus cylindricus F. $, do. (H. M.); 

 6. Rhophites canus Ev. J, do. (Budd.). 



Friese saw Eucera malvae Rossi at Bozen. 



Loew noticed the following in the Berlin Botanic Garden. 



A. Diptera. Syrphidae: 1. Syrphus balteatus Deg., po-dvg. B. Hymeno- 

 ptera. Apidae : 2. Apis mellifica Z. \, po-cltg. C. Lepidoptera. Rhopalocera : 



3. Pieris brassicae Z., skg. ; 4. Spilothyrus alceae Esp., do. 



521. M. moschata L. (Herm. Miiller, 'Fertilisation,' p. 144.) As No. 519. 

 Visitors. Herm. Miiller observed the following. 



A. Diptera. Bombyliidae: 1. Systoechus sulphureus Mikan., skg. B. Hymeno- 

 ptera. Apidae: 2. Andrena coitana K. J, skg.; 3. Apis mellifica Z. g, do.; 



4. Chelostoma nigricome Z. 5, do. C. Lepidoptera. Rhopalocera : 5. Hesperia 

 sylvanus Esp., skg. 



MacLeod saw Bombus lapidarius Z. jjj in the Pyrenees (Bot. Jaarb. Dodonaea, 

 Ghent, iii, 1891, p. 401). 



In Dumfriesshire, Apis and 2 humble-bees were recorded (Scott-Elliot, ' Flora of 

 Dumfriesshire,' p. 35). 



148. Lavatera L. 



Like the last genus. 



522. L. thuringiaca L. The large pale rose-red flowers of this species are 

 protandrous, according to Schulz ('Beitrage,' I, p. 26). The anthers of the 70- 

 90 stamens often remain closed for a time after the flower opens. Dehiscence 

 begins above, and after it is over the filaments do not curve downwards. Before 

 the lower anthers have shed their pollen, the styles which have so far been enclosed 

 in the tube formed by the filaments elongate, and curve outwards until the 

 stigmatic branches touch the anthers. But the latter are usually destitute of pollen 

 at this stage, so that automatic self-pollination is unusual. 



Visitors. Loew observed the honey-bee, po-cltg., in the Berlin Botanic 

 Garden. 



523. L. trimestris L. 



Visitors. Schenck observed the fossorial wasp Crabro serripes Pz. in Nassau. 



149. Kitaibelia Willd. 



524. K. vitifolia Willd. 



Visitors. Loew observed the hover-fly Syrphus balteatus Deg., po-dvg., in the 

 Berlin Botanic Garden. 



150. Althaea L. 



Like Malva. 



525. A. ficifolia Cav. This species is self-sterile (Comes, 'Ult. stud, e 

 consideraz. sulla impollinaz. delle piante '). 



