50 



STATE BOARD OF HORTICULTURE. 



The flowers are white, the leaves lanceolate or oblong. The 

 petiole is not so markedly winged as in the bitter-sour orange, 

 but is always present to a greater or less degree. The fruit is 

 generally an oblate sphere, pyriform or elliptical, of a golden 

 color when ripe, and full of delicate pulp and sweet, refreshing 

 juice. 



SEEDLINGS. Primary rovt stout, tapering, twisted, furnished after a 



time with a few lateral rootlets, longitudinally ridged and furrowed, at 



least when dry. 



Hypocotyl subter- 

 ranean, short, stout, 

 curved, longitudi- 

 nally ridged, color- 

 less, 2-3.5 mm. long. 

 Cotyledons two, 

 opposite or fre- 

 quently alternate, 

 colorless, fleshy, not 

 leavingthe testa, but 

 very often com- 

 pressed and shape- 

 less, owing to the 

 presence of two, 

 three, or four em- 

 bryos in the seed. 



Stem woody, erect, 

 terete (striate when 

 dried and somewhat 

 twisted), pale green, 

 glabrous or minute- 

 ly pubescent; first 

 internode 2.5-4 cm. 

 long; second, and 

 sometimes the third 

 and fourth undevel- 

 oped, or the third 3 

 mm. and the fourth 

 2.25 mm. long. 



Leaves simple, 



Seedlings of Citrus aurantium dulces yearling plants. cauline, alternate, 



exstipulate, petio- 



late, evergreen, shining, coriaceous, thickly dotted with immersed glands, 



strongly odoriferous when bruised, glabrous. 



Nos. 1 and 2. Generally opposite by the nondevelopment of the internode, 



more or less obliquely obcordate and appearing deformed very shortly 



petiolate. 



Nos. 3 and 4 (in specimen examined). Alternate, elliptic, obtuse, obso- 



letely serrate, minutely emarginate, with alternate, ascending, lateral nerves ; 



petioles channeled above, narrowly winged, articulated with the stem below 



and the leaf above. 



Ultimate leaves oblong-ovate, acuminate, emarginate, minutely and obso- 



letely serrate, pellucidly punctate, with a thin marginal line of larger glands ; 



lamina articulated with the winged petiole, which is ovate in outline, with a 



