1910] Deane,— Teratology in Trillium 165 
pointed, petioled leaves, with the blades 7 cm., 7 cm. and 6 cm., and 
the petioles all 5 mm. in length. The second internode is 2 em. long 
and at the third node are three ovate, taper-pointed, sessile leaves, 
two with a single lobe on one side, a little nearer the base than apex, 
the sinus pointing to the base of the leaf, and giving the effect in a 
general way of the single-lobed form of leaf of our common Sassafras 
(Sassafras varüfolium (Sglisb.) Ktze.), while the third leaf has a 
notch in the same position, showing an approach to the same kind of 
lobe. ‘The leaves are 6.2 cm., 6.5 em. and 5.7 em. in length. Above 
this node is the peduncle, 1 cm. long, surmounted by the flower, which 
is normal as to the petals and stamens. ‘The sepals are three in num- 
ber, green, ovate, taper-pointed, sessile, 4.5 cm. in length and 2 cm. 
in width. The ovary is normal as to its exterior, but is one-celled 
with three parietal placentae and numerous ovules. 
The plants taken from this same station in 1907 and 1908 by Mr. 
DeMeritte exhibited in general the plan of three, excepting one which 
was growing about two meters from the others and showed the plan 
of three and of four in its various parts. ‘The persistency of these forms 
now for three seasons is significant and would seem to indicate a 
normal condition of abnormality in this particular locality. 
An intesesting Trillium erectum L. came to my notice on May 30, 
1909, and I examined it in a fresh state. A party of us were driving 
on that day through the Glen Road at the base of the White Moun- 
tains in New Hampshire. The sides of the way were lined with this 
handsome ‘Trillium in full flower, the large rhombic leaves and the 
deep maroon petals making a beautiful display. We collected a 
large bunch, and in the evening I examined each plant carefully and 
found one case of teratology. In all points not mentioned below, 
such as size and shape of leaves, etc., the plant is normal.. There is a 
single whorl of four leaves. The sepals are five in number, green with 
an edging of maroon, two of them in addition streaked with r roon. 
There are four petals alternating with the sepals and le.ving one 
vacant place where there is absolutely no evidence that a fifth petal 
was ever present, the two adjoining petals being contiguous at the base. 
There are eight stamens, four opposite, and four alternating with the 
petals. One of the latter stamens is double, the anthers separate for 
three fifths of the way from the apex, the remaining two fifths, as well 
as the filaments, united. The ovary is eight-winged, one-celled, with 
four parietal placentae, each placenta attached to the wall between 
