308 



Eue. Warming. 



17. Minuartia biflora (L) Shinz & Theil. (Fig. 35.) 

 The flower is never spread out in a decidedly stellate 



manner because the sepals keep very erect (Fig. 35, A, B). 



Gynodoecism (or Gynomonoecism?); £ = $. 



West Greenland (about 69° N.lat.). g: Slightly pro- 



tandrous, perhaps entirely homogamous. In a flower like 



Fig. 34. Minuartia groenlandica. 

 All from Greenland. A (about l 1 /*) with a leaf (fol) from Umanak 

 (Rosenvinge). B, from Sukkertoppen (idem). C, Sepal and petal. 

 D, from a bud, two cal.-anth. have opened. E, e: All the anthers 

 have opened with the exception of three cor.-anth. (here, as is so often 

 the case elsewhere, a shrinking of the anther-wall takes place, on 

 dehiscence, which must aid in the shedding of the pollen-grains). 

 F, from an old flower, East. Greenland (P. Eberlin). G and H: Seeds 

 from Ilua in South Greenland (Mrs. Lundholm) and from East Green- 

 land (P. Eberlin). — (E. W.) 



the one figured in Fig. C, the cal.-anth. only were open and 

 shed pollen directly on the stigma (Fig. c 1 ). A similar flower 

 with higher cal.-st. is shown in Fig. E. When afterwards 

 the cor.-st. also open they are of about the same height as 



