380 С. H. Ostenfeld. 



Fam. Saxifragaceæ. 



36. Saxifraga cerniia L. 



18/vi: Year-old flower scapes and new leaves. 11/vii: In full 

 flower; not only the terminal flower developed, but also the terminal 

 flowers of the branches; numerous small bulbils in the axils. 



37. Saxifraga flagellaris Willd. 



20/vi: Small, low (1 — 2 cm) specimens in flower, 11/vii and 3/viii: 

 Medium sized and coarse (7 cm high) specimens towards the end of the 

 flowering period. 



38. Saxifraga groenlandica L., var. uniflora (R. Br.) Simmons. 

 20/vi: Flowering beginning. 11/vii: In full flower; scapes slender, 



flowers rather small. 



Ï 



39. Saxifraga nivalis L. 



3/viii: A rather slender specimen; flowering nearly over, 



40. Saxifraga oppositifolia L. 



Common everywhere. 18/v and 3/vi: Winter-stage; year-old empty 

 capsules. 5/vi: Flowering just beginning. 18/ vi and 20/vi: In full 

 flowering and with year-old empty capsules. 11/vii: Flowering over. 

 3/viii: Fruits half-ripe; year-old empty capsules still present. 



IV. Gamopetalæ. 



Fam. Compositæ. 



41. Erigeron compositus Pursh. 



20/vi: New young leaves and flowering buds present, but the 

 scapes of the flower heads are not stretched; old scapes (1 and 2 years 

 old) present, with empty heads. 



42. Taraxacum phymatocarpum J. Vahl. 



23/v: Very small specimen with young leaves and small flowering 

 buds (locality correct ?). 11/vii: Specimens with unripe fruits and still 

 also heads in bud. 3/viii: Specimen with half and wholly ripe fruits 

 (achenes). 



Fam. Ericaceae. 



43. Cassiope tetragona (L.) D. Don. 



23/v: Winter-stage. 18/vi: No flower buds to be seen. 20/vi: Flo- 

 wer buds present. 11/vii: In flower and some flowers already gone, 

 year-old empty capsules. 3/viii: Flowering over, young fruits. 



Fam. Plumbaginaceæ. 



44. Statice armeria L., var. sibirica (Turcz.) Rosenv, 



11/vii: Low specimens in beginning of flowering and with scapes 

 with year-old fruits, Involucral bracts and flowers purple. 



