590 ANGIOSPERMAE—DICOTYLEDONES 



bees, 5 hover-flies, lo Muscids, 5 Lepidoptera, 3 beetles (op. cit., v, 1893, pp. 412-14). 

 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 

 2-| 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 : i . Coccinella impustulata L. (U) Curcu- 

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

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

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

 10. Helophilus floreus Z. ; 11. Syritta pipiens Z. ; 12. Syrphus balteatusZ*?^. ; 13. S. 

 corollaei^. ; 14. S. ribesii Z. C. Hymenoptera. (a)Apidae: 15. Apis melhfica 

 Z. y, skg. and po-cltg. ; 16. Bombus terrester Z. 5, skg. ; 17. Halictus cylindricus 

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

 fusa i\^/. 5, skg. ; 20. Sphecodes ephippiusZ. J, skg. (li) Ichneumonidae : 21. Foenus 

 sp. {c) Sphegidae: 22. Cerceris arenaria Z. 5; 23. Crabro vexillatus Pz. 5; 24. 

 Oxybelus bipunctatus Oliv.^ and S; 25. O. quattuordecimnotatus /ar. S ; 26. O. 

 uniglumis Z. 5 and $. (d) Vespidae: 27. Eumenes coarctatus Z. ; 28. Odynerus 

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

 Z'. 5; 31. Vespa crabro Z. 5. 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-poUination is possible during later stages 

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

 the pollen of the same flower. 



