27 



but persist in a decaying and colourless condition for many 

 years (Fig. 17 C). 



Tlie flowers occur laterally upon the lower part of the 

 year's shoots ; each has four bracteoles at the base of its stalk 

 (Fig. 18 С ; Fig, 16 B). They are obdiplostemonous and the 

 carpels are antipetalous. They are formed during the year 

 previous to that in which they open, and pass the winter in a 

 fairly well-developed condition (Fig. 16 /), £"; Fig. 17 C). 



The same shoot may flower 

 several years in succession 

 (Fig. 16(?). 



The corolla is yellowish- 

 white and emits a perfume, 

 which recalls that of the Lily 

 of the Valley [Convallaria ma- 

 jalis), but is not powerful, 

 and is strongest in the evening. 

 It is bell-shaped and nods with 

 down-turned throat on its 



curving stalk (Fig. 17| 



Fig. 17. Cassiojje fefrafiona. 

 Its West Greenland). 



(From 



length is from 7 to 8 (8-5) mm. -^^ a brauch with flower: ,, new lateral shoot: 



o. the same in transverse section. C, A branch 

 The length of the pistil is 'e^ently cleared of snow (July 12. 1884): the 



dark leaves are dead. (E. W., 1885.) 



about '-^U of that of the corolla. 



and the stigma is situated almost at the throat (Fig. 18^4). The 

 anthers, as illustrated in Fig. 18 A, stand at about the middle 

 of the corolla. The filaments are only slightly thicker at their 

 bases than at their apices (Fig. 18). The anthers are black; 

 their pores are elongated, turned upwards, and are open even 

 in the bud. The appendages which are long and slender, are 

 covered with small, stiff' hairs (Fig. \8 B); they spread hori- 

 zontally from the anthers and reach well towards the sides of 

 the corolla, so that an insect on thrusting its proboscis into 

 the latter in search of the honey which is secreted by the 

 yellowish-coloured disk below the ovary (Fig. \8 A, D), must 



