338 ANGIOSPERMAE—DICOTYLEDONES 



8oi. L. incurvus Roth. — 



Visitors. — Loew (Berlin) saw a humble-bee (Bombus agrorum F. 5) pressing 

 the alae together normally, skg. and po-cltg. 



802. L. rotundifolius Willd. — 



Visitors. — Loew (Berlin) observed 2 bees : — i. Bombus agrorum F. 5, inserting 

 its proboscis laterally under the vexillum ; 2. Megachile fasciata Sm. S. skg. 



231. Orobus L. 



803. O. aureus Stev. — 



Visitors. — Loew (Berlin) saw 2 humble-bees. — i . Bombus agrorum F. 5, skg. ; 

 2. B. lapidarius L. 5, do. 



804. O. hirsutus L. — 



Visitors. — Loew (Berlin) saw 2 bees. — i . Bombus agrorum F. 5, skg. ; 



2. Megachile fasciata 8771. J, do. 



805. O. Jordani Tenore. — 



Visitors. — Loew (Berlin) saw a humble-bee (Bombus hortorum L. 5), skg. and 

 po-cltg. 



232. Erythrina L. 



806. E. Crista-galli L. (Delpino, ' Ult. oss.,' pp. 64-8 ; Herm. MuUer, ' Wait. 

 Beob.,' II, p. 264.) — The flower of this Brazilian species is twisted through an angle 

 of 180°, so that the large vexillum is directed downwards, and serves as an 

 alighting-place and platform for visitors. The stamens and style are enclosed by 

 the upwardly directed carina, the lower part of which is expanded into a nectar- 

 reservoir. The alae are only represented by two vestigial laminae. Cross-pollination 

 is favoured by the fact that the stigma projects a litde beyond the anthers. 



Visitors. — Delpino supposes that humming-birds are the pollinating agents. 



807. E. velutina. (Delpino, op. cit.) — In this species the alae and carina 

 are reduced to minute vestiges, so that the column of sexual organs lies free under 

 the vexillum. 



Visitors. — Delpino believes these to be bees that must thrust in their heads 

 between the sexual column and the vexillum to reach the nectar, which is secreted as 

 in papilionaceous flowers generally. 



233. Glycine L. 



808. G. chinensis Sims. (= Wistaria chinensis DC). — The large blue flowers 

 of this species are associated in many-blossomed racemes. 



Visitors. — Herm. Miiller observed the following bees at Strasburg (' Weit. 

 Beob.' II, p. 263). — 



I. Anthidium manicatum L. S, skg. ; 2. Anthophora personata ///. 5 and S, do. ; 



3. Megachile willughbiella K. S, do.; 4. Osmia aenea L. 5, do. ; 5. O. rufa L. 5, do. 



Loew saw the honey-bee, skg., in the Berlin Botanic Garden. 

 Schletlerer records the widely distributed carpenter-bee Xylocopa violacea L. 

 for the Tyrol. 



