Scrophulariaceae. 483 



of Ist order. Chlorophyll-grains occur abundantly in the 

 whole of the mesophyll, and also in the epidermis of the 

 lower surface. 



Pedicularis Oederi Vahl. 



Alcohol-material from Norway (Kongsvold (Dovre), leg. 

 E, Warming, 13. 7. 1887; Muggrubfj ældet near Røraas, leg. 

 Thekla Resvoll, 29. 7. 1918). 



Herbarium-material from Nova Zembla, Arctic Siberia 

 (Khabarowa and from near the Taimyr river) and St. Law- 

 rence Island. 



Lit.: AxELL, 1869, p. 102; Kjellman, 1882 (I), p. 257; 1882 (II), 

 p. 325; 1882 (IV), p. 510; Kjellman and Lundstrom, 1882, p. 304; 

 AuRiviLLius, 1883, p. 451; Warming, 1886, p. 47; 1890, pp. 207, 208, 

 210 and 214; Lindman, 1887, pp. 82 and 99, tab. IV. fig. 46; Kerner, 

 Bd. II, 1898, p. 337; Knuth, 1899, p. 186; Sylvén, 1906, p. 89; Schro- 

 TER, 1908, pp. 464, 455 and 458; Resvoll, 1917, p. 210. 



Spot-bound, sympodial semi-rosette hemicryptophyte 

 with a short, vertical mesocorme which dies away behind. 

 Adventitious roots are rather abundantly developed. 



According to Sylvén the seed germinates in spring. 

 "The elongated hypocotyl unites with the main root, scantily 

 branched throughout, into a peg-shaped food-storing organ 

 which becomes rather thick at an early period. In more 

 advanced young-plants adventitious roots, thickened by the 

 storage of reserve food-material, like the main root, some- 

 times appear to be developed from the hypocotyl, or from 

 the base of the epicotyl." Th. Resvoll has studied the 

 whole development from seed to flowering plant: Duringthe 

 first summer two small foliage-leaves expanded, the terminal 

 bud was protected by a few scale-leaves, and contained the 

 rudiments of the foliage-leaves of the following summer; the 

 plant passed the winter in this stage. The foliage-leaves fell 

 of! late in autumn, and left leaf-scars. "After having passed 



