Ratnaley : seedlings of cektaix woody plants. 71 



The cotyledons are at first lo mm. long, but by the time tiie 

 first pair of foliage leaves appear they are 30 mm. in length, 

 17 mm. in width, ovate, entire, notched at the apex. The 

 epicotyl is 10 mm. in length. The figures here given are sub- 

 stantially correct for all the plants examined by the present 

 writer. Lubbock's * figures for seedlings of this species are 

 about one-half those here given. 



The epicotyl is at length 20 mm. long. The first two foliage 

 leaves are opposite, the later ones alternate. Leaves of the first 

 year are not at all conspicuously oblique at base as are those of 

 older plants. 



HORACES. 

 Toxylon pomiferum Raf. 



This is the well-known " osage orange" of the south-central 

 United States. The seeds germinate in about one month after 

 planting. The seed coat is often carried up by the cotyledons 

 which are thus prevented from opening till they have increased 

 somewhat in size. 



When they first appear the cotyledons are 9 mm. long and 5 

 mm. broad, obovate-oblong, entire, short-petioled. The hypo- 

 cotyl is stout, 35-50 mm. long. 



The cotyledons grow rapidly in size and by the time the first 

 leaves are well developed have increased to 20 mm. in length 

 and 12 mm. in width. The petiole is distinctly margined and 

 4 mm. long. The veining of the blade is distinct. The epi- 

 cotyl is 10-15 mm. long. The first two foliage leaves are op- 

 posite, narrowly lanceolate, ovate, entire or nearly so, distinctly 

 veined. The later leaves are alternate, often pointed at the 

 base as well as the apex. The seedling of this plant was 

 studied by Lubbock, f but not figured. 



Broussonetia papyrifera (Linn.) Vent. 



The seeds of this oriental tree, the " paper mulberry," ger- 

 minate in about three or four weeks after planting. The seed 

 coat is carried up and often remains attached to one of the 

 cotyledons for a time after they have opened. 



The hypocotyl is rather slender, 12-15 mi^^- long. The 



* On Seedlings, 2: 493. 1S92. 

 t Op. cit. 2 : 49S. 



