LEGUMINOS^E 417 



Hypocotyl erect, terete, glabrous, colourless when subterranean, 

 red when rising out of the soil, tapering gradually into the 

 root. 



Cotyledons oblong, obtuse, fleshy, petiolate, glabrous, deep green ; 

 lamina 7 mm. long, 3 - 5 mm. broad ; petiole articulated with the 

 lamina, fleshy, channelled above, 1 mm. long. 



Stem herbaceous, erect, terete, glabrous or thinly pubescent, 

 green or purplish ; 1st internode 2-4 cm. long ; 2nd 2*7 cm. ; 3rd 

 1-15 cm. 



Leaves pinnately trifoliolate (1st unifoliolate), cauline, alter- 

 nate, stipulate, petiolate, glabrous above, thinly pubescent on the 

 under surface, deep or intensely glaucous-green above, glaucous 

 beneath, alternately penninerved, with numerous, ascending, parallel, 

 simple or forking veins ; petioles trigonous, channelled on the upper 

 side, thinly pubescent ; stipules subulate, attenuate, entire, minutely 

 ciliate. 



No. 1. Unifoliolate, rotund, subemarginate, minutely notched 

 at the base, obsoletely crenate, with the tips of the nerves de- 

 pressed. 



No. 2. Trifoliolate ; terminal leaflet obovate, emarginate, ob- 

 scurely toothed in the notch, obsoletely crenate ; lateral leaflets 

 obovate-oblong, otherwise like the terminal one. 



Nos. 3-5. With rather longer, narrower, more evidently ser- 

 rulate or denticulate leaflets. 



Ultimate leaves pinnately trifoliolate ; leaflets emarginate, 

 toothed in the notch, denticulate ; terminal one ovate, lateral ones 

 oblong-elliptic. 



Melilotus leucantha, Koch, closely resembles the preceding 

 species but has rather larger cotyledons. 



Trifolium Boissieri, Guss. (fig. 272). 



Primary root long, tapering, with lateral rootlets and a few 

 tubercles. 



Hypocotyl tapering, fleshy, terete, colourless below the soil and 

 purple above, glabrous, tapering insensibly into the root. 



Cotyledons glabrous, fleshy ; lamina oblong, obtuse, deep green, 

 articulated with its petiole, 8 mm. long, 3'75 mm. broad ; petioles 

 dilated and connate at the base, channelled above, 2*5 mm. long. 



Stem herbaceous, erect, flexuous, wiry and purple at the base, 

 stouter upwards, angled, pale green, sparsely pubescent ; 1st inter- 

 node 1'2 cm. long ; 2nd 1-2 cm. ; 3rd 6 mm. 



Leaves pinnately trifoliolate (No. 1 unifoliolate), cauline, stipu- 



