262 ANGIOSPERMAE—DICOTYLEDONES 



original position. The lower connective limb is much reduced ; it is merel)' a little 

 (o-7 mm. long) tooth directed downwards. The two upper limbs of the connectives, 

 bearing fertile anther-lobes, lie close to each other on the upper lip in the line of the 

 filaments. The style is at first bent down on to the lower lip, so that the stigma 

 lies in the entrance of the flower. At first it is short and the stigmatic branches are 

 apposed. The style then elongates and moves somewhat upwards, while the 

 stigmatic branches diverge, so that they stand before the mouth of the flower. 

 Nectar-seeking bees press back the upper lip of the corolla, and are dusted with 

 pollen in young flowers, which they transfer to the stigmas of older ones. 



Schulz says that the corolla reaches 10-15 nim. in length in hermaphrodite 

 flowers, but only 5-9 mm. in female ones. The lower whorls of the inflorescence 

 are generally entirely hermaphrodite, and the upper ones entirely female ; or there 

 are single lateral flowers of the unilateral half-whorl in the lower part of the 

 inflorescence which are female, or single lateral flowers in all the half-whorls which 

 may be female. In female flowers the connectives and filaments have quite 

 disappeared, so that the sterile anthers are sessile on the corolla. Schulz observed 

 perforation. 



Visitors. — Buddeberg observed the following bees in Nassau, all skg. — 



I. Apis mellifica Z. $> in great numbers ; 2. Bombus pratorum L. 5 ; 

 3. B. sylvarum Z. 5 and 5 ; 4- B. tristis Seidl. 5 ; 5. Coelioxys rufescens Lep. 5 and $; 

 6. Halictus albipes F. S and 5, freq. ; 7. H. leucopus .ff". 5 ; 8. H. longulus Svi. S, 

 freq. ; 9. H. nilidiusculus K. j ; 10. H. nitidus Schenck 5; 11. H. quadristrigatus 

 Ltr. 2; 12. H. sexnotatus K. 5; 13. H. xanthopus K. $, freq.; 14. Osmia adunca 

 Ltr.b; 15. O. aenea Z. 5 ; 16. O. caementaria Gersi.^; 17. Prosopis armillata 

 Nyl. t; 18. Saropoda bimaculata Pz. 5. 



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



Loew (Steiermark), the humble-bee Bombus hortorum Z., skg. Gerstacker 

 (Kreuth), 4 bees-^i. Bombus jonellus K. ; 2. B. mucidus Gerst. ; 3. B. subterraneus 

 Z. ; 4. Psithyrus vestalis Fourcr. Schletlerer (Tyrol), 5 bees — i. Bombus jonellus 

 K.\ 2. B. mesomelas Gerst.; 3. B. subterraneus Z. ; 4. Eriades florisomnis Z. ; 

 5. Halictus leucozonius Schr. von Dalla Torre (Tyrol), the bee Anthophora 

 furcata Pz. $. 



2255. S. Verbenaca L. — Willis (J. Linn. Soc. Bot., London, xxx, 1894) 

 says that this species is cleistogamous in England. 



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



A. Diptera. Syrphidae: i. Melithreptus scriptus Z., settling on the flowers; 

 2. Syritta pipiens Z., do. B. Hymenoptera. Apidae: 3. Anthidium manicatum 

 Z. 5, skg. ; 4. Apis mellifica Z. 5, steadily skg. C. Lepidoptera. Rhopalocera : 

 5. Pieris brassicae Z., skg. 



2256. S. clandestina L. (perhaps only a variety of the last species). — 

 Visitors. — Schletterer observed 2 long-tongued bees at Pola — Bombus 



argillaceus Scop., and Podalirius ctinipes Sm. 



2257. S. Regeliana Trautv. (Correns, op. cit.) — The white flowers of this 

 species possess a mechanism very similar to that of S. verticillata, but the connective 

 is smaller, and the sterile limb relatively shorter and blunter. 



2258. S. Horminum L. — Correns (op. cit.) states that in this species the two 



