44 - SOUTH AFRICAN BOTANY 
upin the bulb and produces flowers and fruit. Adventi- 
tious roots are developed at the base of the bulb. After 
flowering, the food is again stored up in the bases of the 
foliage leaves, so that a new bulb is produced. 
Fic. 28.—I. Corm of Montbretia. 
n. New corm. /f. Foliage leaves. s. Scale leaves, 
II. Section through Corm of Montbretia. 
u. Main axis. t Swollen stem. s. Scale leaves. f. Foliago leaves. 
(d) A corm (fig. 28) is a swollen underground portion 
of the stem. It resembles a bulb in appearance, but 
differs from it in possessing only a few scale leaves, the 
solid portion of it being’a stem structure, 
