LEGUMINOSAE 335 



785. L. tuberosus L. The purple-red, fragrant flowers of this species are 

 markedly asymmetrical, and according to Kirchner ('Flora v. Stuttgart,' p. 511) their 

 mechanism agrees with that of L. sylvestris, even as regards the torsion of the 

 carina and style. 



Visitors. Herm. Miiller observed the following ('Fertilisation,' p. 210, 'Weit. 

 Beob.,' II, p. 257). 



A. Hymenoptera. Apidae: 1. Apis mellifica Z. tjj, skg. and po-cltg. 

 B. Lepidoptera. Rhopalocera : 2. Hesperia sp., skg. ; 3. Lycaena damon <S\ V., do.; 

 4. Pieris rapae Z., do. C. Thysanoptera. 5. Thrips, freq. 



Schletterer and von Dalla Torre (Tyrol) saw the bee Halictus sexcinctus Fbr. 5 ; 

 and Loew (Berlin Botanic Garden) 2 long-tongued bees (Megachile circumcincta 

 K. 5, skg. and po-cltg. ; M. fasciata Sm. J), skg. Schulz, in Central Germany, noticed 

 flowers perforated by humble-bees. 



786. L. heterophyllus L. 



Visitors. Schulz (Central Germany) saw flowers perforated by humble-bees. 



787. L. palustris L. The flowers of this species are asymmetrical. Their 

 mechanism has been fully described and illustrated by Heinsius (Bot. Jaarb. 

 Dodonaea, Ghent, iv, 1892, pp. 91-4). 



Visitors. Heinsius, in Holland, observed 2 humble-bees, Bombus agrorum 

 F., skg. legitimately, and B. scrimshiranus K. (proboscis only 9-10 mm. long), po-cltg.; 

 also a butterfly Hesperia sylvanus Esp. 5, perhaps an unbidden guest. 



Schulz (Central Germany) saw flowers perforated by humble-bees (loc. cit.). 



788. L. latifolius L. 



Visitors. Schenck (Nassau) saw the leaf-cutting bee Megachile maritima K. ; 

 von Dalla Torre and Schletterer (Tyrol) the bee Nomada lineola Pz. 



Loew observed the following bees and butterflies ('Beitrage,' p. 34). 



(a) In Silesia. 1. Apis mellifica Z. tjj, trying to suck; 2. Megachile maritima 

 K. 5, po-cltg. ; 3. Xylocopa violacea Z. <j>, skg. ; 4. Rhodocera rhamni Z., trying to 

 suck, (b) In the Berlin Botanic Garden. 1. Apis mellifica Z. |jf, skg. through holes 

 made by humble-bees; 2. Bombus terrester Z. 5, vainly trying to suck from the 

 outside ; another <j> was biting holes with its mandibles immediately above the calyx ; 

 3. Megachile fasciata Sm. $ and 5, skg. ; 4. Vanessa cardui Z., skg. (c) Ditto, on the var. 

 ensifolius. 1. Megachile fasciata Sm. $, skg. and po-cltg.; 2. Colias rhamni Z., skg.; 

 3. Pieris brassicae Z., do. (d) Ditto, on the var. intermedius. 1. Bombus sylvarum 

 Z. <j>, skg. legitimately and po-cltg. ; 2. Megachile fasciata Sm. J, do. ; 3. Lycaena 

 bellargus Rott., skg. ; 4. Pieris brassicae Z., do. 



Plateau noticed the following Hymenoptera. 



1. Bombus muscorum F. ; 2. B. terrester Z. ; 3. Eucera longicornis Z. ; 4. Mega- 

 chile ericetorum Lep. ; 5. Odynerus quadratus Pz. ; 6. Stelis sp. 



789. L. luteus Gren. (=Orobus luteus Z.). The flowers of this species are 

 l first yellow, but towards the end of anthesis take on a fiery red colour. According 



to MacLeod's observations in the Cottian Alps, their mechanism is the same as 

 that of L. pratensis. 



Visitors. MacLeod saw a species of humble-bee. 



790. L. montanus Bernh. (=L. macrorrhizus Z., and Orobus tuberosus 

 Wimm.). The flowers of this species are at first rose-red, then lilac, and finally of a 

 faded brown colour. 



