216 Rhodora [DECEMBER 
each with a normal stamen at the base. The three petals, which are 
also normal, are persistent and withered and have no stamens opposite 
them. It will be noticed that in this flower it is the outer row of 
stamens that were developed, whereas in the former flower it was the 
inner row (those opposite the petals). The ovary has three styles 
and 1з one-celled with three parietal placentae, and contains many 
ovules as yet undeveloped. 
The third specimen, which, as I stated above, was growing about 
two meters from those just described, has a single whorl of four leaves 
at the top of the stem, broadly ovate and taper-pointed. Three of 
them have normal petioles 1 cm. long and blades 15 cm., 15 cm., and 
14 cm. in length respectively. ‘The fourth leaf has a broadly winged 
petiole 1 cm. long and blade 15.5 cm. in length. The peduncle is 4.5 
сш. long and there are four sepals of normal size 3 сш. long, each 
with a typical stamen at the base. Three petals only, normal, each 
with a typical stamen at its base, are present. ‘The ovary has four 
styles and was plainly four-celled, the partitions separating three of the 
cells having been broken away by the enlarging ovules, one of the cells 
being intact. The ovary was filled with forty-six well developing 
ovules that bade fair to be good seeds. These three specimens with the 
dissected parts are in my herbarium. 
Mr. C. H. Knowlton has kindly sent to me for examination an 
abnormal Trillium undulatum, collected by him in July, 1897, at 
Farmington, Maine. The plant is just past the flowering stage. A 
single whorl of four leaves crowns the top of the stem. They are 
perfectly normal in shape and from 7.5 cm. to 9 сш. in length. The 
peduncle, two sepals, and three petals are normal, one sepal having 
evidently been destroyed by an insect. 'lhere are six stamens, five 
of them typical and one more or less petaloid and occupying the place 
opposite the missing вера]. ‘The ovary has three styles and is one- 
celled with three parietal placentae, the cell well filled with ovules. * 
Teratological forms of Trillium seem to be unusually vigorous, and 
two at least of the specimens that I have just described would evidently 
have set well developed fruit. I draw no deductions from these 
statements, but think it best to put on record facts for future specialists. 
CAMBRIDGE, MASSACHUSETTS. 
