1908] Deane,— Trillium undulatum 215 
each, and one with four whorls of three leaves. Two of these speci- 
mens were collected. It is significant that the plan of three was 
followed each year. About two meters from this spot was a single 
stalk with one whorl of four leaves. This specimen was also taken 
and the three plants were pressed and given to me for study. Per- 
fectly normal types grew in abundance near by. It was intended to 
revisit the station while the plants were still in flower, but this was 
impossible. The fruit in my specimens was beginning to develop 
and the petals were withered. The persistency, however, of the 
stamens as well as the petals in Trillium has enabled me to make an 
accurate examination of the floral envelopes. 
I will now describe the three specimens. There is one bearing two 
whorls of three leaves each, the leaves all taper-pointed and those of 
the lowest whorl broadly ovate with petioles, 2.5 em. long. The blades 
are respectively 16 cm., 14 cm., and 14.5 ст. in length. The internode 
above is 2.5 сш. long. ‘The leaves of the next whorl are broadly ovate 
with petioles, 1 ст. long. The blades are 11 cm., 13 cm., and 12.5 cm. 
in length. Above this is the flower with a peduncle, 5.5 cm. long. 
The sepals are ovate, taper-pointed, sessile, and of extraordinary size, 
being 4 cm. wide and 9 cm. long. Indeed they resemble typical leaves. 
There are four peta!s of normal shape in this specimen, alternating with 
the sepals, two of the petals being contiguous and doubtless the result 
of chorisis. ‘These replace the third petal normally present. There 
are but three stamens, one at the base of each of three of the petals, 
and all normal. The ovary has two main styles, the division between 
them extending to the base, one of the styles being cleft half way down, 
thus making three styles in all. The ovary is one-celled with two 
parietal placentae, bearing respectively 5 and 3 developing ovules. 
This specimen is probably from the same stock as the one of 1907. 
Closely contiguous to it is the second stalk which has three whorls of 
tbree leaves each, all taper-pointed. In the lowest whorl the petioles 
are 7 cm. long. ‘The blades of two of the leaves have been destroyed, 
but the third is present and is broadly ovate and 13.5 em. long. The 
internode above is 7.5 cm. in length. In the next whorl one leaf is 
gone, the scar showing its position. ‘The remaining two have petioles 
2.5 cm. long and blades 12 cm. in length. The next internode is 
4.5 cm. long and the leaves in the third and uppermost whorl are 
sessile and 10.3 cm., 10 cm., and 11 cm. in length respectively. The 
peduncle is 1.5 cm. long and there are three large sepals, 5 cm. long, 
