314 



ANGIOSPERMAE—DICOTYLEDONES 



Visitors. — Herm. Miiller noticed the honey-bee in Thuringia. Loew saw a 

 bee (Andrena propinqua Sckenck 5) po-cltg. in the Alps ; and, in Silesia, a butterfly 

 (Hesperia comma Z.) vainly trying to suck. He also observed the following in the 

 Berlin Botanic Garden. — 



A. Diptera. Syrphidae: 1. Eristalis nemorum Z., settling on the corolla. 

 B. Hjmaenoptera. Apidae: 2. Anthidium manicatum Z. 5, po-cltg., and trying to 

 suck ; 3. Bombus agrorum F. 5, vainly skg. ; 4. B. hortorum Z. 5, po-cltg. ; 5. B. 

 lapidarius Z. 5, po-cltg. and vainly skg. ; 6. B. rajellus K. 5, skg. ; 7. Megachile 

 centuncularis Z. 5, po-cltg. and vainly skg. ; 8. M. fasciata Sm. 5, do. ; 9. M. lagopoda 

 Z. $, po-cltg. ; 10. Osmia aenea Z. 5, do. 



Fig. 101. Coronilla vaginalis^ Lam. (after Herm. Muller). A, Flower seen from the front (X 3J). 

 B. The same, after removal of the right half of the vexillum, and of the right ala. C. Left ala seen 

 from the inside ( X 3^). D. Flower after removal of calyx, vexillum, and alae ; seen from above ( X 7). 

 E. Young bud in longitudinal sections. F. Calyx and carina with enclosed stamens and pistil (in 

 section). F'. Style and stigma. G. The nine united stamens, removed from a bud and spread out. 

 a, anthers; ca, calyx; tf, alar process, fitting into carinal pit (<;'): ex^ tip of carina; y, vexillum ; 

 /f, filaments ; ^, alae ; gr, style ; 0, posterior filament ; ffv, ovnles ; po^ pollen ; J, carina ; j', carinal claw ; 

 St, stigma ; v^ staminal tube. 



Rossler saw the butterfly Lycaena argus Z. at Wiesbaden. Schletterer noticed 

 the mason-bee Megachile (Chalicodoma) muraria Relz. in the Tyrol ; and, at Pola, 

 the rare Xylocopa cyanescens BrulL, which is the smallest European carpenter-bee. 



744. C. montana Scop., 745. C. glauca L., and 746. C. mi nim a L. — These 

 species, according to Farrer (Nature, London, x, 1874), agree with C. varia as 

 regards the flower mechanism and secretion of nectar. 



Visitors. — For C. montana Loew observed a humble-bee (Bombus rajellus 

 K. §), po-cltg., in the Berlin Botanic Garden. 



747. C. Emerus L. — It was in this species that Delpino (' Ult. oss.,' pp. 39-44) 

 first recognized and described in detail the pump arrangement by which threads 

 of pollen are extruded (' apparecchio che offre una curiosa analogia col meccanismo 

 con cui si fabbrica la pasta da vermicellajo '). 



