194 



ON SEEDLINGS 



Leaves alternately penninerved and reticulate, minutely glandu- 

 lar-pubescent on both surfaces, and beset with orange-coloured, 

 pellucid glands in the tissue all round the margin of the leaf, deep 

 green above, paler beneath, more or less shining on both surfaces, 

 evergreen ; petioles short, semiterete, channelled above, finely 

 glandular-pubescent, reddish. 



No. 1. Transversely oval, serrate, small. 



No. 2. Rotund, irregularly serrate. 



No. 3. Obliquely ovate, obtuse, unequally serrate, appearing 

 rather deformed. 



Ardisia mamillata, Hance (fig. 505). 



Primary root very long, stout, tapering down- 

 wards and giving off numerous lateral branches. 



Hypocotyl erect, very stout, fleshy, cylin- 

 drical or tapering somewhat to either end, 

 minutely pubescent, 1 cm. long. 



Cotyledons oblate, emarginate or obreni- 

 form, sessile, subfleshy, deep green, very hairy 

 on both surfaces with transparent jointed 

 hairs, which are longest on the upper sur- 

 face and on the margin, convex above, revolute 

 at the margin and concave beneath, showing a 

 midrib very distinctly, but no other venation. 



The emargination of the cotyledons appears 

 to be due to their being convolute and closely 

 wrapped or rolled round the plumule before 

 emerging from the albuminous seed. The 

 latter is round like a small pea, and the coty- 

 ledons, after attaining their full length, grow 

 greatly in width and are accommodated in the 

 seed by becoming convolute, as in Geranium, 

 Eucalyptus, and others. 



Leaves shortly penninerved, densely covered 

 on the upper surface with mamillate out- 

 growths or emergences, upon which long 

 coarse hairs are seated, oblong, obtuse, subcoriaceous, persistent. 



Ardisia polycephala, Wall. 



Fruit a drupe, depresso'globose or considerably flattened at the 

 top, smooth, deep black ; epicarp thin ; endocarp crustaceous and 

 marked from base to apex with strong longitudinal nerves ; meso- 

 carp pulpy, reddish or pinkish ; placenta basal, prominent and 



FIG. 605. 



Ardisia mamillata. 

 Seedling, showing 

 emarginate coty- 

 ledons. Nat. size. 



