REST HARROW 



19 



being equal. The pods are less than the calyx in length, downy, with 

 seeds with raised points. 



The plant is from i ft. to 18 in. in height. June, July, August 

 are the periods during which the tlowers are in hlooni. The plant 

 is perennial and increased by division. 



The flower is similar to that of Lotus. It has the piston-mechanism. 

 The ala- or wings on which the bees alight act as levers to depress the 

 carina or keel, and fold over its upper part, being united by two pro- 



l*):oto. Matters A; Uarnett 



Rest Harrow {Ononis sfiinnsa, L. ) 



jections, directed downwards and upwards, which fit into deep grooves. 

 Two lobes on the upper margin of the alse lie over the column of 

 stamens. The alae do not cohere, but the upper borders of the carina 

 do at first, forming a tube, and leave a small opening only at the tij), 

 where the pollen is pu.shed through a small gap. The stamens are 

 monadelphous or attached. Honey is not secreted. The stamens are 

 thickened at the end, the outer ones most, but the inner produce more 

 pollen. The visitors are Apis vicllijica, Cilissa leporina, Aiitliophora 

 qjiadri-inacitlata, Bonibtis lapidai-iiis. 



In the Rest Harrow the seeds are dispersed by the plant's own 

 mechanism. Ihe pod is i 4-celled and 2-valved, and when con- 

 tracted when dry it expels the seeds for a short distance. 



