300 



OX SEEDLINGS 



Browallia elata, L. (fig. 549). 



Primary root small, tapering downwards, with lateral fibres, 

 annual. 



Hypocotyl about 1 cm. long, -5 mm. thick, terete, slender, 

 pubescent. 



Cotyledons nearly equal, petiolate, 5 mm. long including the 



FIG. 549. Browallia elata. Nat. size. 



petiole, 3'5 mm. wide, oblate, emarginate, obscurely nerved, 

 slightly pubescent, pale green. 



Stem very short, until it commences to grow for flowering. 

 Leaves simple, cauline, alternate, exstipulate, petiolate, alter- 

 nately incurvinerved and reticulate, hairy all over, membranous, 

 deep green above, paler beneath. 



Nos. 1 and 2. About 4 mm. long, 3 mm. wide at first, ovate, 

 deeply serrate, rounded at the base 

 and apex, hairy all over, distinctly 

 incurvinerved and reticulate, bright 

 green, thin. 



Brunfelsia sp. (fig. 550). 



Hypocotyl woody, erect, terete, 

 pubescent, soon becoming grey and 

 throwing off the epidermis, about 

 1-8 cm. above the soil. 



Cotyledons large, foliaceous, ro- 

 tund-obovate, emarginate, coriaceous, 

 petiolate, deep green above and 

 thinly hairy, pubescent beneath, shin- 

 ing on both sides ; laminae variable 

 in size from l'S-1'9 cm. long, T5- 

 1'8 cm. wide. 



Stem woody, erect, terete, pubes- 

 cent, pale green mottled with purple ; 1st internode 8 mm. long ; 

 2nd 6 mm. ; 3rd 9 mm. ; 4th 8 mm. ; 5th 10 mm. ; 6th 7 mm. 



Leaves simple, entire, cauline, alternate, exstipulate, petiolate, 

 thinly glandular-pubescent on both sides, coriaceous, shining, deep 



FIG. 550. Brunfelsia sp. 

 Half nat. size. 



