Caryophyllaceæ. 321 



Andromonoecism occurs on Dovre. In a dense in- 

 florescence the lowermost flowers were purely o, while the 

 uppermost ones were more or less distinctly £.<?>? (see 

 Fig. K and J). In £ the petals were 9 1 / 2 mm and in ? 8 mm 

 in length. In $ the pistil is smaller, the ovules are smaller 

 and compressed, but appear otherwise to be fairly normal, 

 only the stigmas are undeveloped (Fig. k 1 , k 2 , k z , compared 

 with t 1 , i 2 , / 3 ). 



[Note. Lindman and Axell: Gynodoecism, $ common 

 on Dovre; slight protandry.J 



22. Melandrium 1 apetalum. (L.) Fenzl. (Figs. 39 and 40). 



Greenland. Sets ripe fruit, at least as far as 70° — 

 71° N. lat. 



Norway (Kongsvold, Alten), g and $. 



According to Lindman dimorphous y, protogynous- 

 homogamous. He has described more closely the variations 

 which occur in the structure of the flowers: (a) some flowers 

 are larger than the others, but are more inconspicuous and 

 have shorter stamens, the petals do not reach to the throat 

 of the calyx; they are dull dark-red (Fig. 39, A, A 1 , a 1 ). The 

 flowers are protogynous, and the styles twisted; (b) others 

 are smaller, have protruding petals and longer stamens 

 (see Fig. D, C); he regards them as approaching to o. The 

 calyx is thinner and lighter coloured. The anthers stand at 

 a higher level than the stigmas. 



1 The characters on which the genus Wahlbergella is founded are 

 very insignificant, and the genus ought not to be retained; also 

 the characters are not correct; as for instance the record in Hart- 

 mann's Flora that the claws of the petals of Wahlbergella are 

 wingless, but those af Melandrium are winged, or that the seeds 

 have a membranous edging; for M. triflorum, which evidently 

 stands very near to the two Wahlbergella's, has wingless seeds 

 (see Fig. 41, H). 



