402 BOTANICAL GAZETTE [JUNE 
specimens I to 3™™, in adult ones 5 to 15™™. Every year’s for- 
mation may live over 20 years, so that the rhizome may attain a 
length of 5°" and more. At first it forms yearly but one leaf; 
afterwards a stem 5 ™ high with two leaves; finally a stem 12™ 
high, crowned with about six leaves, and prolonged into the 
inflorescence. The leaves last very long, appearing above the 
_ ground in February and remaining green until October or 
November. The youngest portion of the rhizome develops 
every year, from October until April, the new roots being one 
or two in young, four to six in full-grown specimens. Their 
direction is downwards or sidewards. They are uniform through- 
out, without contraction, branch sparingly in the Ist degree, and 
are covered with root hairs. In adult specimens they are 2™ 
thick, over 20 in length, and last about fifteen years. The 
central cylinder is 12-archic, its innermost part made up of 
: thick-walled cells. The endodermis exhibits strong V-thicken- 7 
and thin-walled passage-cells in front of the hadrome rays, ee | 
there are no foldings on its longitudinal walls. The moder- 
abundant cortex is starch-bearing. 
in ¢ lintonia the roots are storing organs, but the chiesoe 
rather rich in starch- -bearing parenchyma. The a . 
eee — the ees of the Thi 
AOR oo te Ley Dee ga ra! eae Cat ane Sane (ee ae 
ermination i probably ere snes in : 
about io”. long, remains underground 
d. The | 
