FOSSIL PLANTS. 
447 
specimen showing, at the same time, the character of Lepidodendron, or the 
three vascular scars of the leaves and the semi-cylindrical and subcortical ap¬ 
pendages of a Knorria. These we have evidently in our Lepidodendron Morisi- 
anum. The value, therefore, of the genus Knorria, and its true characters, are 
still questionable and open to discussion. 
Colchester and Morris. 
SlGILLARIA ALTERNANS, LI. and Hutt. 
Foss. FI. 1, pi. 56. 
A remarkable specimen of this species has been found upon a piece of coal 
at Morris, by Mr. S. S. Strong. In its lower part it shows the row of double 
scars separated by a space of half an inch, elongated and irregularly oval. In 
ascending, the scars approach insensibly till they pass to a row of single ovate 
pointed cicatrices, joined together by their ends with an oval depression in the 
middle. This last representation of Sigillaria alternans, LI and Hutt., is ex¬ 
actly Sigillaria catemdata of the same authors, Foss. Flor. 1, pi. 58, and there¬ 
fore both species ought to be united in one, as is done by Goldenberg. 
Sigillaria spinulosa, Germ, in Gold. ^ £ ) 
■l y P. 20, PI. 10, fig. 4. 
Our species merely differs by the lateral angles of the cicatrices being slight¬ 
ly obtuse and not acute, as figured and described in the European species. 
There is no trace of scars of spines. It may be a different and a new species, 
but it is on a piece of coal, decorticated, and all the details of structure cannot 
be recognized. 
Carmi, White county; collected by E. T. Cox. 
Sigillaria Cistii, Brgt. 
Ycg. Foss. 1, p. 418, PI. 140, fig. 2. 
This species is placed in the genus Stemmatopteris by Corda, and appears to 
be a true Caidoptcris. Mr. Bradley has found at Morris a specimen referable 
to this species; but it has only one scar, and from it to the base of the specimen 
there is'a surface half a foot long, without trace of any other scar. The whole 
surface is ribbed or striated as in Brongniart’s figure, the striae curving and 
uniting under the scars. 
