lo ANGIOSPERMAE—DICOTYLEDONES 



The following were recorded by the observers, and for the localities stated. — 



Herm. Miiller (Alps), a humble-bee (' Alpenblumen,' p. 404). MacLeod 

 (Pyrenees), 3 long-tongued bees (Bot. Jaarb. Dodonaea, Ghent, iii, 1891, p. 371)- 

 Schenck (Nassau), 2 bees — Halictoides dentiventris Nyl, and Mehtta haemorrhoi- 

 dalis F. 



1706. C. Trachelium L. ( = C. urticifolia Schviidt). — Kerner states that the 

 flowers of this species open at Innsbruck about 6-7 a. m., and close again about 

 6-7 p.m. He adds that the corolla is white in the neighbourhood of the Brenner, 

 but blue in the eastern Limestone Alps. The stylar branches curve back in a 

 crescentic manner, and effect autogamy by coming into contact with the pollen 

 adhering to the hairs of the corolla if crossing has not already been brought about 

 by insects. Warnstorf says that the branches roll back until they touch the pollen 

 remaining on the style. The pollen-grains are yellow in colour, spheroidal, beset 

 with spinose tubercles, about 47 /x in diameter. 



Visitors.— Herm. Muller (H. M.) ('Fertilisation,' p. 368, ' Weit. Beob.' Ill, 

 p. 77) and Knuth (Kn.) (' Bloemenbiol. Bijdragen') observed the following. — 



A. Coleoptera. [a) Crypiophagidae: i. Antherophagus sp. (H. W.). (h) Cur- 

 culionidae: 2. Gymnetron campanulae L. (H. M., Thuringia). (f) NUidulidac : 3. 

 Meligethes, in very large numbers (H. ]\L). B. Diptera. Syrphidae: 4. Chryso- 

 chlamys ruficornis F., po-dvg. (H. M.) ; 5. Rhingia rostrata Z., skg. (Kn.) ; 6. 

 Syrphus balteatus Deg., po-dvg. (H. M.). C. Hymenoptera. Apidae : 7. Andrena 

 coitana.Sr. 5 and S, the $ very common (H. M.); 8. A. fulvicrus F. S (H. M.); 9. A. 

 gwynana F. § and J, freq. (H. M.) ; 10. Apis mellifica L. 5, skg. (Kn., H. M.) ; 1 1. 

 Bombus lapidarius Z. $, po-cltg. (Kn., H. M.) ; 12. Chelostoma campanularum L. 

 (H. M.); 13. C. nigricorne AJ'/. S, skg. (H. M.); 14. Cilissa haemorrhoidalis F. 5 

 and i, skg. and po-cltg., S very common (Kn., H. M.) ; 15. Halictoides dentiventris 

 NyL 5 and S, S very common (H. M.); 16. Halictus cylindricus F. }, po-cltg. (H. M.); 

 17. Prosopis halinata Sm. } and S, numerous (H. M.) ; 18. Xylocopa violacea L. 5, 

 skg. (H. M., Wurzburg). 



The following were recorded by the observers, and for the localities stated. — 

 Herm. Muller (Alps), a humble-bee (' Alpenblumen,' p. 404). Schleiterer and 

 von Dalla Torre (Tyrol), the bee Halictus costulatus Frchh. VViistnei (Alsen), the 

 bee Cilissa haemorrhoidalis F. Sickmann (Osnabruck), the fossorial wasp Crabro 

 chrysostomus Lep. Krieger (Leipzig), 5 bees — i. Eriades nigricornis Nyl.; 2. Ha- 

 lictus morio F.; 3. H. smeathmanellus K.\ 4. Melitta haemorrhoidalis F.\ 5. 

 Trachusa serratulae Pz. Schmiedeknecht (Thuringia), 3 bees — i. Andrena alpina 

 Mor. ; 2. A. gwynana A'., 2nd gen.; 3. A. shawella K. Schenck (Nassau), the bee 

 Halictoides dentiventris Nyl. 



1707. C. sibirica L. (Kirchner, Jahreshefte Ver. Natk., Stuttgart, liii, 1897, 

 p. 211.) — The numerous flowers of this species are arranged in panicles. The calyx- 

 teeth are 7-8 mm. long, and perpendicular to the corolla, while the bracteoles which 

 alternate with them are reflexed. The violet corolla is 28-30 mm. in length, of 

 which 8-10 mm. are taken up by its lobes. The style is equal in length to the 

 corolla-tube, and its branches ultimately roll back into spirals of two turns, so that 

 automatic self-pollination can take place. 



Visitors. — Kirchner observed a bee, of which the species was not determined. 



1708. C. Erinus L. (Kirchner, op. cit., p. 204.) — Kirchner investigated plants 

 of this species in the Hohenheim Botanic Garden, and gives the following description 

 of the flower mechanism. — 



