3BH 



lu cm. (Norman I.e.). I have measured lierliaiiiim .«^pecimen.s 



from ISordtjord in Discu wliicli were 

 about 35 cm. iti lenglli. A dwarf 

 specimen is shown in FijU'. 18. 



There are five reddish-brown, hairy 

 p e r i i; II e - 1 »• aves an d fi ve yellow 

 nectary - lea ves about twice as long 

 as the perigoue- leaves. The receptacle 

 is almost globular in form but elon- 

 gates somewhat during fruit-setting, 

 not so much, however, as in R. ni- 

 valis. These two plants, R. sulphu- 

 reus and R. nivalis agree very closely 

 but are distinguished from each other 

 especially by the fact of R. sulph. 

 having short, reddish-brown hairs 

 upon tlie torus, while they are absent 

 from R. nivalis (Simmons 1. c). The 

 nectary occurs upon the claw of 

 the nectary-leaf (Fig. 19) and consists 



growing on sand near the shore. ^f ^ simple pOCkCt. EkSTaM (1899, 



1. c.) records that in Spitzbergen the flower? have a slight 

 perfume, and that they 

 are proterogynous-homo- 

 gamous; but self-polli- 

 nation is rendered difficult 

 by the fact of the gynoe- 

 cium overtopping the 

 stamens considerably even 



when the latter have p. ,„ t? „ ;, 7. ., „ 



Fig. 19. M. sulpliuretis. 



opened. The anthers are a. Base of nectary-leaf with nectary (• i). B. Al- 

 most ripe fruit; about 'i (.Spitzbergen: 8. 8. 1910). 



partially extrorse. in 



Arctic Siberia and in Nova Zembla the diameter of the flower 



is about 16 mm. (Ekstam, 1897); in Scandinavia the maximum is 



Fig. IS. R. sulphureiis. 

 (King Charles Land). 



Dwarf-plant which had been 



