334 Bug. Warming. 



same individual (trioecism and monoecism: Axell). ^: the 

 stigmatic papillæ were larger than in ^. According to 

 LiNDMAN the high degree of protandry makes self-pollination 

 impossible. ?: There are two sizes of ? flowers (corolla 5 — 11 

 mm in diameter) according to Lindman. From Tromsö I have 

 seen specimens with corolla-tube 5 mm, staminodes 1 mm, ovary 

 3 mm in length and corolla 7 — 9 mm in diameter. From Dovre 

 with diameter ö^/g — 7, corolla-tube 5 — 6 mm, petals 9 mm, 

 calyx-tube 5 mm; the pistil altogether 8^/2^ — 9 mm; the rudi- 

 ments of the stamens 2^/3 mm. Even before the flower has 

 opened the styles protrude. S '■ like those from Greenland. 

 Ovules rudimentary. СогоПа 8^ — 9 mm in diameter, on 

 Dovre even 12 mm, indeed a few as much as 15 mm, calyx- 

 tube 6^/2" — 8 mm. The pistil-rudiment may attain a length 

 of 3^/2 mm, petals 14 mm, and the corolla-tube 7 mm. Near 

 Hammersfest and Tromsö I saw many ripe fruits in the 

 female plants; on the Skaadavara mountain in Altenfjord, 

 on the other hand, they had remained barren. 



The Alps {Validier, Koch and H. M.). Trioecism, monoecism. 

 The § flower is as a rule larger than the (^, which is larger than the 

 $. Marked protandry, self-pollination is possible in the case of the 

 5 flower (H. M.). Butterfly pollination. ^ is found only singly, here 

 and there, but appears nevertheless to be of far more common occur- 

 rence than in the North. 



29. Dianthiis superbiis L. 



This large-flowered species with fragrant, finely divided 

 petals seems to occur with ^, $ and 3 flowers. According to 

 Vaucher the flowers open in the evening and close irregularly 

 during the warm hours of the day. 



Denmark. 2: Protandry. ? (?): the form micropetalus 

 Lge. is probably a female plant. 



Kola (specimens from Dr. Brotherus). At the transition- 

 point between the limb and the claw there are long unicellu- 



