i57 
the Young Epicotyl in some Ranalean Forms . 
The lateral strands usually join the vascular axis at a slightly higher 
level than does the central strand. This is particularly noticeable in con- 
nexion with the first foliage leaf, whose median strand is inserted at the 
level of the cotyledons, whereas the laterals have entered the ring consider- 
ably above. 
A. vernalis possesses a somewhat smaller seedling, and the foliage 
leaves are trilobed at the tip. It differs from the last species in several 
particulars. There is an earlier inception of cambial growth giving a com- 
pact ring of merismatic secondary tissue. The pith is smaller. The first 
internode is relatively long, and in it the plumular strands collect up to form 
a single pair of rather wide bundles in the intercotyledonary plane. Root 
structure is rapidly attained. 
In A. vitifolia the early leaves are more cut up. The structure is 
intermediate between the two 
forms already described. In one 
of the seedlings examined the first 
foliage leaf contributes only one 
strand to the vascular cylinder 
(see Text-fig. 2, strand a). 
Anemone virginiana appear- 
ed to be similar, though the seed- 
lings were very young. Secondary 
thickening is instituted compara- 
tively late, as it had not yet 
appeared in any of the seedlings 
examined. 
A. pnlsatilla resembles A. 
montana in external appearance, 
whereas its anatomy is nearer to 
that of A. vernalis. 
A. fulgens. The cotyledonary tube is about half an inch long at the 
time the plumule breaks through it at the base. The foliage leaves are 
larger and have longer petioles than in the previous species. Anatomi- 
cally the species is peculiar in an extreme telescoping of the young axis. 
The median strands of the first two foliage leaves and the double bundles 
from the cotyledons all converge at the same level, giving a cruciform 
appearance at the cotyledonary node. The two laterals of the second 
foliage leaf and a single one from the first foliage leaf are inserted at two 
levels higher up in the axis. 
A. rividaris is a larger seedling, but its anatomy corresponds closely 
with that of A . vernalis. 
A. sylvestris is a smaller seedling, and the small oval laminae of the 
cotyledons are attached directly to the cotyledonary tube. The lateral 
Text-fig. 2. Anemone vitifolia . First 
plumular node. 
