320 EuG. Warming. 



The pistil is perhaps somewhat larger than in the '^, and 

 the styles reach right across the petals, twisting to the left. 

 The stigmatic papillæ are larger than in the ^ (see Fig. i^ 

 and H). 



Transitional forms from v to $ occur, the anthers 

 being only more or less abortive in some of the stamens, 

 and normal in the others. Among the abortive stamens there 

 often occur some with pollen and fibrous cells, but the pol- 

 len-grains are smaller than ordinary, thicker -walled, and of 

 irregular outhne; the pores are also more distinct (Fig. c'^). 

 The barren stamens do not become elongated (Fig. C). 



In a flower (Greenland, about 67° N. lat.; 13. 7. 1884) 

 one of the cal.-anth. was seen to be open while all the others 

 were closed, and the styles were already entirely outspread; 

 if this was not an imperfect 5, then there must have been 

 protogyny (Fig. 5). 



^. In "K. Danske Vid. Selsk. Overs.", 1886, p. 129, I 

 recorded the occurrence of <? in Greenland, but I am now 

 rather doubtful as regards this point. 



Ripe fruit is commonly set in Greenland. 



Norway (Dovre and Alten); Sweden (Fig. 38, /. K). 

 Gynodioecism and Gynomonoecism, Andromonoecism ; slightly 

 fragrant in the evening. ^, protandrous, corolla-tube 4^/2 

 — 5 mm; diameter 10 — 11 mm, exactly as in Greenland. 



A 4-merous flower was found together with 5-merous 

 ones, viz. 4 seps., 4 pets., 4 + 4 st. and 3 carp. The number 

 of the styles are 3^ — -4 — -5. 



$: Diameter 7—9 mm, corolla-tube 5 — 572- In specimens 

 from Alten the ovaries were smaller in ? than in ^, viz. 

 3^/2 lïim as compared with 4 — 4^2 mm; the styles, on the 

 other hand, were slightly longer. The petals 10 mm in length 

 in ^ and 6^/2 in ?. Near Alten female plants were found 

 (15. 7, 1885) which had set numerous fruit the year before. 



