640 



ANGIOSPERMAE DICOTYLEDON ES 



1517. E. sphaerocephalus L. (Hildebrand, ' U. d. GeschlechtsverhalL b. d. 

 Compositen,' pp. 46-8, Taf. VI, Figs. 1-3; Herm. Miiller, 'Fertilisation,' pp. 336-7, 

 'Weit. Beob.,'III,p.79; Knuth, 'Bloemenbiol. Bijdragen,' ' Bliitenbiol. Herbstbeob.') 

 Hermann Miiller says that the nectar rises into the bell after filling the corolla-tut 

 (5-6 mm. long), which is almost completely occupied by the style. The bell is split 

 almost to its base into five linear lobes, and the nectar is therefore accessible ever 

 to insects with a very short proboscis. After the style protrudes from the anther- 

 cylinder, its branches still remain apposed for a time, so that the pollen may 

 removed by insect visitors before the stigmatic surfaces are spread out. 



Fig. 204. Echinops sphaerocephalus, L. (after Herm. Mullen, (i) Floret at the end of the first 

 male) stage. (a) Do. in the second (female) stage. (5) Longitudinal section of the style and ot 



the corolla-tube which surrounds it. a, filaments ; 6, anthers ; c, brush of sweeping-hairs ; d, stigma ; 

 e, nectary. 



Visitors. I observed (Kiel Botanic Garden), Apis, skg., 2 humble-bees (Bombi 

 lapidarius Z. 5 and 5, skg., and B. terrester Z. J, do.), 2 butterflies (Pieris sp., and 

 Vanessa io Z.), 2 hover-flies (Eristalis sp., and Syritta pipiens Z.), and 2 Muscid 

 (Lucilia cornicina F., and Pollenia rudis F.). Loew saw Bombus terrester Z. $, skg., 

 in the Berlin Botanic Garden. 



Herm. Miiller (H. M.) and Buddeberg (Budd.) record the following for Thurinj 

 and Nassau. 



Hymenoptera. (a) Apidae : 1. Bombus lapidarius Z. 5, skg. (H. M.) 

 2. B. muscorum F. , do. (H. M.) ; 3. B. sylvarum Z. ^ do. (H. M.) ; 4. 

 variabilis Schmiedekn. ^, do. (Budd.) ; 5. Halictus cylindricus F. $ and $. ver 

 numerous, skg. (Budd.); 6. H. interruptus Pz. t, skg. (Budd.); 7. H. macuU 

 Sm. 5, do. (Budd.); 8. H. minutissimus K. 5, do. (Budd.); 9. H. morio F. 

 do. (Budd.); 10. H. quadricinctus F. $ and J, do. (H. M.); 11. H. rubicundus Ch 

 S, do. (H. M.) ; 12. Prosopis communis Nyl. 5, do. (Budd.). (b) Vespidaex 13. Poliste 

 gallica L. (H. M.) ; 14. P. diadema L/r., freq., skg. (H. M.). 



