GERANIACE^E 



309 



^ No. 2. Similar but emarginate with a tooth in the notch or 



tridentate at the apex. 



Pelargonium australe, Willd. (fig. 229). 



Primary root normal, tapering, fibrous, annual. 



Hypocotyl erect, terete, glandular-pubescent or -hairy, pale green 

 or suffused with red, 6-8 mm. above the soil. 



Cotyledons ovate-oblong, emarginate, minutely mucronate in the 

 notch, unequally subcordate at the base, shallowly crenate at the 

 sides, glandular-hairy all 

 over, light green ; lamina 9- 

 15 mm. long, 7'5-10-5 mm. 

 broad ; petiole subterete, 

 shallowly grooved above, 

 glandular-hairy, 1-5-2-1 cm. 

 long. 



Stem herbaceous, an- 

 nual, developed when about 

 to flower. 



Leaves simple, radical 

 and cauline, alternate, stipu- 

 late, petiolate, light green, 

 glandular-hairy all over, 

 alternately and ascendingly 

 penninerved ; stipules ad- 

 nate to the petiole for more 

 than half their length, with membranous, free, whitish, glandular- 

 ciliate, tooth-like tips ; petioles semiterete, channelled above, 

 glandular-hairy and villous, pale green. 



Nos. 1 and 2. Ovate, obtuse, cordate at the base, pinnatifid ; 

 segments again alternately penninerved, coarsely and obtusely- 

 toothed or the lower sublobulate. 



Pelargonium bipinnatifidum, L'Herit. 



Primary root fibrous, well developed. 



Hypocotyl herbaceous, 1 cm. long, 2 mm. thick, pubescent, red- 

 dish-green. 



Cotyledons oval or obovate ; lamina 1-25-1-5 cm. long, T25 cm. 

 broad, cordate at the base, slightly emarginate at the apex, otherwise 

 entire, with obscure midrib, succulent, pubescent, bright green above, 

 paler and reddish beneath ; petiole pubescent and shallowly chan- 

 nelled, 1 cm. long, 1 mm. thick. 



FIG. 229. Pelargonium australe. 

 Half nat. size. 



