59Q ANGIOSPERMAEDICOTYLEDONES 



bees, 5 hover-flies, 10 Muscids, 5 Lepidoptera, 3 beetles (op. cit., v, 1893, PP- 4 I2-I 4)- 

 H. de Vries (Netherlands), the bee Halictus leucozonius Schr. (Ned. Kruidk. Arch., 

 Nijmegen, 2 ser., 2 deel, 1875). Scott-Elliot (Dumfriesshire), a hover-fly, and 2 

 Muscids ('Flora of Dumfriesshire/ p. 91). 



424. Stenactis Cass. 



Ray-florets slender, whitish, female, biseriate. Disk-florets bell-shaped yellow, 

 hermaphrodite. Stylar branches as in Aster. 



1357. S. annua Nees (=S. bellidiflora A. Br., Aster annuus Z, and Erigeron 

 annuus Pers.). (Kirchner, ' Beitrage,' pp. 64-5.) Kirchner says that in this species 

 there are about 100 ray-florets and numerous disk-florets, together forming a head 

 15-20 mm. in diameter. The tongues of the ray-florets are 5-6 mm. long; at 

 the beginning of anthesis they are somewhat recurved, subsequently they spread 

 out horizontally, and finally, when flowering is over, become erect as they also 

 do in the evening. The diameter of the disk-florets is 5-6 mm., their corolla is 

 z\ mm. long, and the style projects beyond it another \ mm. The stylar branches 

 are concave towards each other until anthesis is over. 



425. Diplopappus Cass. 



1358. D. amygdalinus Hook. 



Visitors. Loew observed the following in the Berlin Botanic Garden. 



A. Coleoptera. (a) Coccinellidae: 1. Coccinella impustulata L. (b) Curcu- 

 lionidae'. 2. Apion miniatum Germ. B. Diptera. (a) Muscidae: 3. Anthomyia sp. ; 

 4. Chloria demandata F. ; 5. Echinomyia fera Z. ; 6. Graphomyia maculata Scop. ; 

 7. Pyrellia cadaverina Z. (6) Syrphidae: 8. Eristalis nemorum Z. ; 9. E. tenax Z. ; 

 10. Helophilus floreusZ. ; 11. Syritta pipiensZ. ; 12. Syrphus balteatus Beg. ; 13. S. 

 corollae Z*. ; 14. S. ribesii Z. C. Hymenoptera. {a)Apidae: 15. Apis mellifica 

 Z. 9, skg. and po-cltg. ; 16. Bombus terrester Z. $, skg. ; 17. Halictus cylindricus 

 F. 5, skg. ; 18. Prosopis communis Nyl. 5 and $, very numerous, skg. ; 19. P. con- 

 fusa Nyl. $, skg. ; 20. Sphecodes ephippius Z. $, skg. (5) Ichneumontdac. 21. Foenus 

 sp. (c) Sphegidae: 22. Cerceris arenaria Z. 5; 23. Crabro vexillatus Pz.$', 24. 

 Oxybelus bipunctatus Oliv.% and $; 25. O. quattuordecimnotatus Jur. J ; 26. 0. 

 uniglumis Z. $ and $. (d) Vespidae: 27. Eumenes coarctatus Z. ; 28. Odynerus 

 parietum Z. 5 and J ; 29. O. parietum Z., var. renimacula Lep. 5 ; 30. O. trifasciatus 

 F. $; 31. Vespa crabro Z. $> D. Lepidoptera. Rhopalocera'. 32. Vanessa urticae 

 Z., skg. 



F. F. Kohl saw 2 true wasps (Eumenes pomiformis F., and E. coarctatus Z.) in 

 the Tyrol. 



426. Erigeron L. 



Ray-florets multiseriate, female; either all ligulate or the inner ones tubular. 

 Disk-florets hermaphrodite, tubular. The outer side of the stylar branches are beset 

 with sweeping-hairs in the hermaphrodite florets, but devoid of them in female 

 ones. These branches only diverge towards the end of anthesis, but are not 

 recurved. Kerner says that automatic self-pollination is possible during later stages 

 by contraction of the stylar branches, which are thus brought into contact with 

 the pollen of the same flower. 



