522 



ON SEEDLINGS 



Seedlings. The cotyledons of Gunnera chilensis (fig. 336) 

 are oblong, trinerved, petiolate, and ciliated. The first leaf is 

 cordate and crenate-serrate. 



Gunnera chilensis, Lam. (fig. 336). 



Hypocotyl erect, terete, finely 

 pubescent, greenish, 5-10 mm. long. 



Cotyledons oblong-oval, obtuse, 

 entire, petiolate with flat petioles, 

 ciliated, minutely pubescent, light 

 green, indistinctly trinerved. 



Stem with primary internodes un- 

 developed. 



First leaves simple, radical, alter- 

 nate, petiolate, exstipulate, ovate, 

 obtuse, cordate at the base, obtusely 

 serrate, ciliate, pubescent, light green, 



palminerved ; petioles long, furrowed 

 FIG. 336. Gunnera chilensis. v t . 



Nat size on the upper side. 



COM BRET ACE.E. 



Benth. et Hook. Gen. PL i. 693. 



Ovary inferior, one-celled. Ovules two or rarely five, pend- 

 ulous from the top of the cell, with long funicles, short in the 

 tribe Gyrocarpeae, anatropous. Fruit drupaceous, often winged 

 longitudinally. Seed usually solitary by arrest ; testa mem- 

 branous, thin ; tegmen swollen, intruded between the folds of 

 the cotyledons. Embryo exalbuminous, straight ; cotyledons 

 foliaceous, rolled into a spiral, or thick, folded lengthwise, or 

 crumpled. Eadicle near the hilum, superior. 



Combretum sundaicum, Miq. 



Hypocotyl undeveloped or very short and subterranean, cotyle- 

 dons subterranean. 



Stem erect, terete, pubescent, soon becoming woody, first inter- 

 node very short, or more often elongated. 



Leaves simple, cauline, alternate, exstipulate with short petioles, 

 nerves alternate and incurved, entire, glabrous, except the pubescent 

 petiole. 



