the Genus Trillium. 119 
ularly descending from the pistil, as well as from the 
conversion of one part into another. 
2. TRILLIUM pictum, of Pursh and Bigelow. 
erythrocarpum, Michaux. 
undulatum, Willdenow. 
Observations on cultivated plants, and plants from the 
vicinity of Lancaster. Figs. 2, 3, 4, 5, 6. 
It would be useless to recapitulate characters which 
agree with the former. The peduncle appears by the 
cuticle to be twisted ; it has reddish streaks. The three 
leaves are on short petioles, of a red brown, particu- 
larly on their first emerging from the earth; they are by 
no means abruptly acuminated, but elongated towards the 
summits. The flower remains erect, is of a clear, trans- 
parent white, with dark, lake-colored streaks rising from 
the base of each petal, spreading upwards and adding 
much to its beauty ; the petals are longer than the sepals, 
undulated toward their termination, but this length, as 
well as the undulation, varies much in different speci- 
mens. In this species, the stamens are united full one 
eighth of an inch to each petal and sepal, as seen in 
figs. 2 and 3; the adhesion is perfect, the veins of the 
filament passing under the cuticle precisely as in peri- 
gynous insertions. The pollen is perfectly white, the 
flower without odor of any kind. The stigmas, although 
sessile, are narrower and more inclined to undulate. 
_ Ovarium ovoid, not angular; berry, when ripe, red and 
pulpy. When a thin section of the ovarium, in its early 
state, is dried between two pieces of talc, the tube or 
vessel in the placenta, through which the granules of 
pollen or their tubes, are conveyed to the ovule, being 
deprived of its moisture, is empty and beautifully visible, 
(fig. 6, a). It flowers rather later than 'T. cérnuum, is 
found in woods, and likes moisture. 
