316 



OX SEEDLINGS 



coarsely hairy on both sides with stiff hyaline hairs ; petioles chan- 

 nelled above, and hairy like the leaves and stem, purplish. 



First pair small, cordate, acute, crenate-dentate with mucronate 

 teeth ; lamina 1-3 cm. long, 1-1 cm. wide. 



Second pair cordate, acute, serrate-dentate with mucronate teeth, 

 faintly five-nerved. 



Third pair cordate, acuminate, serrate-dentate, acute or sub- 

 lobulate below the middle, strongly nerved with five ascending and 

 incurved nerves, and subreticulate. 



Fourth pair cordate, acuminate, acute, acutely dentate-serrate, 

 sublobulate on the lower half, nerved like the third pair. 



Scrophularia sambucifolia, L. (fig. 557). 



Primary root soon ceasing to elongate, and giving off almost 

 horizontal secondary ones near its base. 



Hypocotyl erect, terete, slender, pubescent, pale purplish, 1- 

 1-3 cm. long, -75 mm. thick. 



Cotyledons roundish-triangular, obtuse, gla- 

 brous, convex above ; lamina 5*5 mm. long, 

 6 mm. wide ; petiole channelled above, convex 

 below, pubescent, 6 mm. long. 



Stem slender, erect, terete, hairy, pubes- 

 cent, herbaceous ; 1st internode 2-5 mm. long ; 

 2nd 1 mm. 



Leaves cauline, simple, opposite, decussate, 

 exstipulate, petiolate, glandular- pubescent or 

 hairy on both surfaces as well as on the petioles. 

 Fir^t pair rotund-cordate, obtuse, shallowly 

 crenate. 



Second pah* rotund-cordate, more deeply 

 crenate than the first pair. 



Ultimate leaves lyrate, interruptedly pin- 

 natisect, crenate with mucronate serratures, 

 glandular-pubescent above and on the nerves 

 beneath, and dotted with sessile glands, alternately penninerved, 

 reticulate, rugose ; terminal segment cordate-oblong, obtuse ; lateral 

 segments alternate, more or less imbricate, rotund-cordate, obtuse, 

 unequal at the base, more or less cut away on the anterior basal 

 side, decurrent on the petiole with a narrow wing, and irregularly 

 interspersed with minute segments ; larger segments three to five. 



Scrophularia chrysantha, Jaub. et Sp. 



Hypocotyl covered with numerous glandular hairs, light green 

 or almost colourless, 5-8 mm. long. 



