Ramaley: seedlings of certain woody plants. 81 



coming gradually broader. Higher internodes of the stem are 

 quadrangular. 



Eucalyptus citriodora Hook. 



The mode of germination and the seedling of the "lemon- 

 scented gum " resemble the species just described. There are 

 some important points, however, to be noted. 



The hypocotyl is 20 mm. long and quite slender. The coty- 

 ledons are petiolate. The blade is broadly orbicular, entire, in- 

 distinctly 3-veined ; at length 6-9 mm. broad, 4-7 mm. long, 

 green above, red to purple below. The petiole is 3-4 mm. 

 in length. The cotyledons are persistent for a considerable 

 time ; often remaining till ten or more nodes of the stem are 

 developed. 



Eucalyptus corymbosa Sm. 



This plant, also a native of Australia, is called " blood-w^ood." 

 Seeds germinate in two or three weeks. The hypocotyl is 20 

 mm. long and quite slender. The cotyledons are short-petiolate. 

 The blade is reniform, deeply cordate at base, at first 2-3 

 mm. long and 5-6 mm. broad. It finally grows about twice 

 this size and is indistinctly 3-veined. 



CORNACE^. 



Cornus amomum Mill. 



The seeds of the common " dogw^ood " germinate in two or 

 three weeks after planting, but sometimes not till the follow- 

 ing year. 



The hypocotyl is rather slender and quite long, usually 50 

 mm. or more in length. The epicotyl also is greatly elongated, 

 reaching a length of 40 mm. The cotyledons are oblong-ellip- 

 tical, entire, short-petiolate. At first they are 10 mm. long and 

 5 mm. broad. The blades become 20 mm. long and 10 mm. 

 broad, the petioles 4 mm. long. 



Leaves are all opposite, ovate, acute, petiolate. The first are 

 like the later ones. 



Cornus stolonifera Michx. 

 Seedlings of this plant resemble those of the previous species 

 in all essential respects. 



