210 
Newberry described the flora of the “Amboy 
clays” (Raritan formation) he renamed Les- 
quereux’s species Sequoia gracillima because he 
found associated with similar foliar remains in 
New Jersey elongate cones with scales resem- 
bling those of a Sequoia. He commented on the 
resemblance of these cones. to Geinitzia, but 
the matter rested: here until I compared speci- 
mens of the so-called Sequoia gracillima cones 
with those of the European Geinitzia formosa 
Heer and found the two to be identical. In 
the European Upper Cretaceous these cones 
were found attached’ to foliage of a very differ- 
ent type from Glyptostrobus gracilimus or 
Sequoia gracillima, although in America the 
cones were always detached. Foliage like that 
of Geinitzia formosa was found, however, asso- 
ciated with them. It seemed obvious that the 
cones referred to Sequoia gracillima were those of 
Geimitzia formosa, and accordingly I so assigned 
them. ‘I had collected hundreds of these cones 
and had abundant comparative material. 
When I revised the Raritan flora: I had much 
larger collections than those of Newberry, and I 
found that the foliage which he had called 
Sequoia gracillima was identical with what he 
‘had identified as Widdringtonites reichir (Et- 
tingshausen) Heer. 
These remains are abundant in the Atlantic 
Coastal Plain as far south as Alabama and 
have never been found with ovulate cones, 
although the staminate cones are not uncom- 
mon. Thus the slender conifer in the East is 
Widdringtonites. Whether Lesquereux’s Glyp- 
tostrobus gracillimus also represents this genus 
or not I do not know. I suspect that in spite 
of minor and not very obvious differences 
Glyptostrobus gracillimus is none other than 
Sequoia. condita, which Lesquereux described 
in Hayden’s report for 1874 from very incom- 
plete material collected at Fort Harker and 
Clay Center, Kans. 
The most abundant plants in the Cheyenne 
sandstone are graceful, delicate coniferous 
branches bearing numerous distinctive cones 
identical with the one referred to Sequoia 
condita by Lesquereux, as is the foliage, which 
has been recorded in the literature of the 
Cheyenne sandstone as Glyptostrobus gracilli- 
mus (Ward) and Sequoia gracillima (Knowl- 
ton). The collections naturally contain many 
specimens of detached cones and many speci- 
mens of foliage lacking cones, but the evidence 
SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY, 1921. 
is as strong as it can possibly be that when 
cones and foliage are found in union in a dozen 
specimens those that are found separated in 
the same bed are none other. I have specimens 
of cones from six localities and of the-foliage 
from thirteen localities around Belvidere. 
Moreover, the foliage shows considerable 
variation in the extent to which the leaves are 
pointed or obtuse, appressed or spreading, de- 
pending not only on a natural amount of 
variation but also on whether it represents 
shoots of the year or older twigs, and further- 
more the appearance differs greatly with the 
nature of the matrix, the extent to which 
iron’ salts have been deposited along . the 
channels formed by the twigs, and other con- 
ditions. The specimens found in the. sand- 
stones appear different from those found in the 
clays, and some specimens in the clays which 
were much incrusted suggested at first sight 
the genus Brachyphyllum. 
Before describing the species as. fully as the 
large collection studied permits, I would like 
to point out that Sequoia condita is not related 
to Widdringtonites, Suniperus, Glyptostrobus, 
or Sphenolepis—genera in which the foliage is 
comparable—and it is perfectly distinct from 
Sequoia fastigiata. It is known only from the 
Cheyenne sandstone and from the true Dakota 
of Kansas, In the absence of attached cones 
the foliage might be referred to any one of 
several genera, or its variants might be re- 
ferred to several different species in as many 
genera. Taken together, they demonstrate 
that it is a Sequoia, and I do not feel the slight- 
est doubt but that all the material from the 
Cheyenne sandstone represents a single botanic 
species. It may be described as follows: 
Twigs rather rigid, pinnately branched, slender 
elongate; covered with small, decurrent, 
crowded leaves varying from appressed to 
spreading falcate, thick and coriaceous, acute 
or obtusely pointed, slightly keeled but with- 
out vein. The leaves are arranged in a spiral 
phyllotaxy which becomes higher with the 
elongation of the twigs. In old twigs 2 to 3 
millimeters in diameter they are scattered, 
spreading, and falcate. Their blunt tip is 
more apparent than real and is due to their 
usual or partial preservation in the form of 
casts. The variations in appearance are well 
shown in the accompanying figures. The 
cones vary from prolate to nearly spherical in 
