1862.] DAWSON- — DEYONIAN PLANTS. 311 



16. ASTEEOPHYLLITES LATIFOLIA, S^. IIOV. PI. XIII. fig. 17. 



Stem somewliat slender, with enlarged nodes. Leaves ohlong -lanceo- 

 late, about thirteen in a luliorl, one-nerved, longer than the inter- 

 nodes. Length of leaves varying from one-fourth of an inch, near 

 the ends of brandies, to an inch or more. 



This species abounds in the same locality with the preceding, and 

 is often very perfectly preserved. It has some resemblance to A, 

 galioides, L. & H., and to A. fertilis, Sternberg ; but it differs from 

 the former in the nimiber and form of the leaves, and from the latter 

 in the acuteness of their points. 



17. ASTEEOPHTLLITES ? SCUTIGEEA, Sp. HOV. PI. XIII. figS. 18, 19, 20. 



Stems simple, elongated, attaining a diameter of half an inch, obscurely 

 striated ; bearing on the nodes ivhorls of round or oval scales, or 

 flattened nutlets, which at the ends of the stems are croivded into a 

 sort of spilce, ivhile on other parts of the stems the nodes are some' 

 times an inch apart. 



This is a plant of uncertain nature, which I place only con- 

 jecturaUy in this genus. The stems, which are very long, may have 

 been horizontal or immersed, and the apparent scales may either have 

 constituted a sort of sheath, as in A. coronata, linger, or may have 

 been seeds or nutlets flattened like the rest of the jplant. Near some 

 of the specimens are fragments of linear leaves, which may have 

 belonged to this plant, though I have not found them attached. 

 When flattened obliquely, the stems appear as rows of circular marks, 

 which represent the harder tissue of the nodes, and have a very 

 singular appearance. This plant, though found with the preceding, 

 does not occur in the layers which contain the other plants ', and this 

 may possibly mark a difference of habitat. 



18. AsTEEOPHTLLiTES LONGiEOLiA, Brougniart. 



In the shales containing the preceding species are some frag- 

 ments of an Asterophyllites with slender stems, internodes about 

 an inch in length, and linear leaves two or three inches in length, 

 and about 6 to 8 in a whorl. It may belong to the species here 

 named ; but the remains are not sufficiently distinct to render this 

 certain. 



19. ASTEEOPHYLLITES PAEVULA, DaWSOU. 



<Canad. Nat.' vol. vi. p. 168, figs. Qa, b, c. 



*' Branchlets slender. Leaves 5 or 6 in a luhorl, subidate, curving 

 upward, half a line to a line long. Internodes equal to the length 

 of the leaves or less. Stems ribbed, vjith scars of veriicillate branch- 

 lets at the nodes.''^ 



This diminutive species was originally found by Mr. Matthew in 

 the graphitic shale, associated with the conifer- sandstone, at the 

 southern part of the city of St. John. Small fragments of it have 

 subsequently been obtained from the shales of Carlton. 



