1080 
DE. HEEE ON THE EOSSIL ELOEA OE BOVEY TEACET. 
49. Caepolithes vustaceus, m. (Plate LXX. figs. 28 & 29, magnified 29, h). 
C. semine gigantoideo, tenuissime longitudinaliter striolato, medio unisulcato. 
Some pieces from the 26th bed. 
This has the form and dimensions of the seeds of the grape [Vitis vinifera, Linn.), 
but it does not belong to the genus Vitis; the delicate longitudinal striae, and the 
absence of the umbilicus within the fissure, are against such an hypothesis. It seems to 
me to be the seed of a monocotyledonous plant. 
The seed is 6^ millims. long, and at the thicker portion 4 millims. wide; at one end 
it is much thickened and obtusely truncated, towards the other it is much narrowed. It 
has a brown, rather shining testa, marked by very delicate striae. In some places where 
the testa is removed (fig. 29, magnified fig. 29 ^), the striae (or rather the casts of the 
striae) are more distinctly visible. They form very delicate longitudinal lines, which are 
here and there united by transverse lines. 
50. Caepolithes lividus, m. (Plate LXX. figs. 30 & 31.) 
C. follicularis, membranaceus, brunneus, ovatus. 
In the 26th bed; several pieces. 
A very doubtful species. Small light-brown oval bodies, with a thin membrane. One 
perfectly preserved specimen (fig. 30) is 4-j^ millims. long and 4 milhms. wide ; it is 
quite flattened ; on the dorsal part it is furrowed by transverse wrinkles (fig. 30 5), which 
were, however, produced by^shrinking ; otherwise it is smooth, shining, and of a yellow- 
ish brown; on the other side there is a longitudinal fissure (fig. 30 c, magnified), 
through which probably the seed fell out, leaving the thin membrane of the pericarp. 
In such a case it would be a small folliculus, with probably but one seed. It is also 
possible that it may be the testa of a seed, and that the fissure marks the raphe. 
II. Descriptions oftlieDilumal Species of Plants. 
I. Salix, Linn. 
1 . Salix cixeeea, Linn. (Plate LXXI. figs. la,b,2 Sc 3.) 
S. foliis lanceolato-obovatis, basi angustatis, apice breviter acuminatis, serratis vel 
subtiliter undulato-serrulatis, rugulosis, nervis secundariis valde camptodromis 
nervillisque validis. 
Several leaves lie upon the soft white clay, which cannot be distinguished from those 
of Salix dnerea, Linn. ; they are like the leaves which occur in the tufis of Cannstadt. 
The leaves represented on Plate LXXI. fig. 1 «, h, are distinctly serrated ; the leaf a 
with a rather sharp point ; the same is seen on the leaf fig. 3, while the larger leaf, which 
is represented in fig. 2, has only a slightly undulated and indistinctly denticnlate mar- 
gin, as occurs frequently in Salix dnerea. The secondary nerves are perfectly like those 
of S. dnerea ; they are inclined forwards, and united, forming long arches, which approach 
the margin. The nervules are strong, and impart to the leaf a rather wrinkled aspect. 
