Scrophulariaceae. 385 



celled stalk; non-glandular hairs (Fig. 8, G) usually occur 

 only along the leaf-margin. 



The transverse section shows 2 — 3 layers of short and 

 broad palisade cells with rather large intercellular spaces; 

 the cells of the spongy parenchyma are somewhat more 

 branched than in the foregoing species (cf. surface view, 

 Fig. 8, F). 



Chlorophyll-grains are abundantly present in the whole 

 of the mesophyll; they are also found in the epidermis of 

 the lower surface. 



Veronica officinalis L. 



(f. glabrata Fristedt). 



In the collections preserved in the Botanical Museum 

 in Copenhagen there is some material of Veronica officinalis 

 collected in the Færoes, part of which belongs to the main 

 form with hairy leaves, and part to f. glabrata Fristedt 

 (Væxtgeografiska skildr, af Södra Ångermanland, Upsala, 

 1857). Of both forms there were individuals of normal size, 

 as well as dwarf individuals. 



The Morphology of the species has been described several 

 times (e. g. Warming, 1884, p. 58; Brundin, 1898, p. 83), 

 most exhaustively by the first-named author, from whose 

 description the following is quoted: "The creeping and rooting 

 shoots bear only foliage-leaves (evergreen); at the apex they 

 are frequently bent slightly upwards in a curve, especially 

 when the plant grows among moss; but gradually as the 

 adventitious roots are developed in ascending succession, the 

 stems are drawn down to the ground. From the basal por- 

 tion of the year's shoots there proceeds shoots which re- 

 semble the parent shoot; in this species no lateral shoots 

 are found which can be indicated as special "assimilatory 

 shoots", which are such only, without taking at the same 



