ORGANS OF SOME CALIFORNIAN LILIACEAE 413 
2 to Zygadenus. Like the aerial organs, the roots also 
only one vegetative period, sprouting at the beginning of 
rains, in December and January, and dying off at the begin- 
f dryness i in June or July. 
foung seedlings were found in the latter part of January 
. The cotyledon is subterranean; its upper end, a 
sucker, about 4™" wide, remains in the seed, the rest 
t gates about 10" downwards, carrying the stem as far into 
At Hie: same time the first foliage leaf is sent forth, 
ad sem long, develops near its end a few branches. Its a ae : 
central cylinder is 3-archic, the cortex moderately abundant. ee 
ts ba portion shortens, and in the thin walls of endodermis ee 
_ odermis appears a heavy undulation. Besides" the pri- 
, during the first year one or more roots appear, longer Le 
ly thicker, but in form and function sot ag hog 
iS eecond year onward a ditteceee shows j me the 
aa roots cok he | . 
stil patie | roots Bae he p 
