280 



ON SEEDLINGS 



at the chalaza, when they bend towards the dorsal aspect of the 

 seed ; auricles rounded, obtuse ; radicle stout, oblong, obtuse, about 

 twice as long as the auricles of the cotyledons, with its tip embedded 

 in the endosperm close to the micropyle. 

 Seedling (fig. 221). 



Hypocotyl erect, terete, densely and finely pubescent, pale green, 

 1-8-2-1 cm. above the soil. 



Cotyledons rotund-obovate, obtuse, entire, suddenly tapered into 

 the petiole at the base ; five-nerved and reticulate, glabrous except 



on the principal nerves 

 and the petiole, which are 

 pubescent, light green ; 

 lamina 10-13 mm. long, 

 9-11 mm. broad ; peti- 

 ole semiterete, flattened 

 above, densely pubescent, 

 2-5-3 mm. long. 



Stem erect, terete, 

 densely and finely pubes- 

 cent, pale green, ultimately 

 woody ; 1st internode 4-5 

 mm. long; 2nd 4-6 mm. ; 

 3rd 5-7 mm. 



Leaves simple, cauline, 

 alternate, stipulate, petio- 

 late, five- to seven-nerved 

 and reticulate, light shin- 

 ing green, pubescent on the 

 nerves on both surfaces ; 

 petiole terete, tapering up- 

 wards from a rather stout 

 base, densely pubescent, 

 pale green ; stipules small, subulate, slender, green, deciduous, 

 inserted at the very base of the petiole of the leaf or on the stem. 



No. 1. Ovate, with a cordate base, five-nerved, and obsoletely 

 toothed above the two large lateral obtuse teeth, into which the 

 middle pair of strong nerves is directed. 

 No. 2. Similar, but broader. 



No. 3. Acuminate, and (at least in the young stage) narrower 

 than the first and second ; venation the same. 

 Corchorns olitorins, L. (fig. 222). 



Hypocotyl erect, terete, rather fleshy, thinly pubescent, about 

 8 mm. long. 



PIG. 221. Berrya Ammonilla. Nat. size. 



