30 ON SEEDLINGS 



Stem shrubby, erect, terete, glabrous, green stained with purple 

 where exposed, covered with a glaucous bloom ; 1st internode 5 mm. 

 long ; 2nd and 3rd each 5'5 mm. 



Leaves simple, entire or merely emarginate on the adult plant, 

 cauline, alternate, exstipulate, petiolate, glabrous, finely alternately 

 penninerved, and finely reticulate, deep green above, paler and 

 glaucous beneath, cartilaginous at the margin, apiculate ; petioles 

 channelled above, rounded on the back, glabrous, semiamplexicaul, 

 rather long in the seedling, and almost or quite reduced to the 

 sheath in the adult plant. 



Nos 1 to 4. Obovate, obtuse, entire, apiculate. 



Ultimate leaves oblong- obovate, emarginate, apiculate, with a 

 midrib and two slender submarginal nerves, also two slender nerves 

 at the base on each side of the midrib extending for half to three- 

 quarters of an inch up and uniting each pair into one, which again 

 runs along each side of the midrib till a little above the middle of 

 the leaf, where it unites with the midrib, forming one nerve. 



Bupleurmn longifolium, L. 



Primary root and hypocotyl as in last species. 



Cotyledons linear, subacute, widest about the middle, deep 

 green, glabrous, about 1-3 cm. long including the petiole. 



Stem herbaceous, annual, developed when about to flower. 



Leaves simple, entire, radical and cauline, alternate, exstipulate, 

 petiolate, glabrous, scabrous on the margin and midrib beneath ; 

 petioles dilated and sheathing at the base, ridged and furrowed, chan- 

 nelled above, scabrous on the ridges. 



No. 1. Small, obovate- spathulate, apiculate. 



Nos. 2. and 3. Obovate, apiculate. 



Ammi glaucifolium, L. (fig. 409). 



Primary root stout, tapering downward, and soon furnished with 

 slender, short lateral rootlets. 



Hypocotyl stout, tapering insensibly into the root, glabrous, flesh- 

 coloured. 



Cotyledons linear, obtuse, entire, petiolate, glabrous, tapering 

 gradually into the petiole, dilated and connate at the base, forming a 

 cup around the plumule, at length splitting on one side, alternately 

 penninerved, with some of the nerves suddenly curved upwards and 

 running parallel with the margin, while others proceed to the mar- 

 gin almost horizontally, 2-5-2-8 cm. long including the petiole, 2-3 

 mm. wide about the middle of the lamina which tapers to each end. 



