236 



ON SEEDLINGS 



Erythraea pulchella, Fr. 



Primary root short, fibrous, branched. 



Hypocotyl erect, terete, glabrous, short and tapering indis- 

 tinguishably into the radicle. 



Cotyledons oblong-ovate, obtuse, entire, shortly petiolate, gla- 

 brous, very small, l'5-2 mm. long including the petiole, and 1- 

 1'25 mm. wide. 



Stem herbaceous, angled, ridged and furrowed, glabrous ; 1st and 

 2nd internodes undeveloped ; 3rd 5-7 mm. long. 



Leaves simple, entire, radical and cauline, opposite-decussate, 

 exstipulate, sessile or the first pair shortly petiolate, glabrous, longi- 

 tudinally nerved. 



First pair spathulate, obtuse, shortly petiolate, one-nerved. 



Second pair oblong-elliptic, trinerved, sessile. 



Third pair obovate-oblong, trinerved, sessile. 



Oentiana verna, L. (fig. 525). 



Primary root slender, fibrous, perennial. 

 Hypocotyl erect or decumbent, terete, 

 filiform, deep purplish-red, glabrous, 6-9 mm. 

 long. 



Cotyledons ovate, obtuse, entire, petio- 

 late, showing a midrib but no other venation 

 hi a fresh state, glabrous, deep green, some- 

 what shining; lamina 1 '75-2-25 mm. long, 

 1'5-1'75 mm. wide ; petiole flattened above, 

 convex on the back, green or with a red 

 midrib, glabrous, connate at the base, about 

 1 mm. long. 



Stem herbaceous, procumbent or creep- 

 ing, and with ascending flowering shoots, 

 terete, glabrous, pale green or reddish ; 1st 

 internode 2-4'5 mm. long ; 2nd undeveloped 

 or from '5-2 mm. 



Leaves simple, entire, cauline, opposite, 

 exstipulate, petiolate, glabrous, deep green 

 above, paler beneath, trinerved at least 

 in the seedling, with the lateral nerves in- 

 curved and uniting with the midrib at the 

 apex ; petiole convex on the back, channelled above, connate and 

 clasping at the base. 



First to fifth pairs small, ovate, obtuse or, by tapering into the 

 broadish petiole, subelHptic. 



FIG. 525. 

 Gentiana verna, x 3. 



