54 



ON SEEDLINGS 



times emarginate owing to a small indentation or inflection of the 

 endocarp to which it conforms, cuspidate at the apex where the 

 radicle lies ; testa thin, membranous, minutely alveolate or honey- 

 combed over great part of its surface, deep brown ; hilum and 

 micropyle contiguous, superior, or basal 

 to the seed ; raphe commencing at the 

 hilum and forming a distinct line almost 

 all round the margin of the seed. 



Endosperm and embryo very similar 

 to those of V. Opulus, but the oval- 

 oblong cotyledons are a little longer than 

 the radicle. 



FIG. 423. Viburnum Lentago. 

 Longitudinal section of en- 

 docarp and seed, x 2 : F, 

 funicle; E, embryo; T&Ba, 

 testa and raphe combined; 

 P, endosperm ; En, endo- 

 carp. 



Viburnum Lantana, L. 



Drupe oblong, dorso-ventrally com- 

 endoearp pale- or straw-co- 

 loured, ridged and furrowed longitu- 

 dinally in conformity with the seed ; 

 otherwise as in the last species. 



nearly orbicular, much compressed dorso-ventrally with a 

 median longitudinal ridge along one face and a corresponding furrow 

 along the other, pale brownish-orange ; raphe lateral, passing from 

 the hilum round one edge of the seed and half way up the other to 

 the chalaza ; otherwise as in the last species. 



Endosperm and embryo as in previous species ; cotyledons ovate ; 

 radicle about half their length. 



Viburnum lantanoides, Michx. (fig. 424). 



Drupe oval-oblong, slightly compressed dorso-ventrally, narrowed 

 A 3 



FIG. 424. Viburnum lantanoides. A, longitudinal section of endocarp 

 and seed, x8: Em, embryo; T, testa; P, endosperm; En, endo- 

 carp. B, seed, x 8 : Ba, Ba, Ba, raphe ; M, micropyle, C, trans- 

 verse section of endocarp and seed near its apex, x 6 : P, endosperm 

 T, testa ; Ba, raphe. 



to the apex and tipped with the persistent base of the style ; meso- 

 carp pulpy, dark-coloured ; endocarp crustaceous, oblong, narrowed 



