1863.] DAWSON DEVONIAN PLANTS. 461 



the Stigmaria above described as evidence of the existence of two 

 species of that genus. 



4. Anarthrocanna Perrtana, spec. nov. PI. XVIII. fig. 21. 

 Stem cylindrical, swelling slightly at the nodes ; ribs flattened, about 



fourteen in the circumference of a stem three-fourths of an inch in 

 diameter ; ribs at the nodes apparently continuous with the decur- 

 rent verticillate (?) petioles or branchlets. 



This curious stem at first sight resembles a Calamites ; but it has 

 no distinct articulation, and the ribs appear to separate from the 

 stem and to pass into the decurrent and probably verticillate branch- 

 lets or petioles, which are given off at an acute angle, and bear traces 

 of slender leaves, which are, however, too imperfect for description. 

 The plant corresponds sufficiently, I think, with the characters of 

 Gceppert's genus Anarthrocanna to be included in it. It was pro- 

 bably allied to Calamites or Asterophyllites ; and possibly the species 

 next mentioned may be the fruit of this Plant, though I have not seen 

 them in connexion. 



5. Carpolith.es spicatus, spec. nov. PI. XVII. fig. 15. 



Carpels or spore-cases : oval, about a line in length, apparently with 

 a thick outer coat ; densely placed on a thick rachis. 



This is evidently a spike of fructification, and may be allied to 

 Trigonocarpum racemosum, described in my former paper. It more 

 nearly resembles the fructification of Annularia and Sphenophyllum 

 than any other fossil fruits known to me. Its parts are too indis- 

 tinct to admit of minute description, and the two-ranked appear- 

 ance of the seeds or fruits is probably deceptive, as there are indica- 

 tions that the specimen is a cylindrical spike flattened. 

 / 

 \/ 6. Lycopodites Eichardsoni, spec. nov. PI. XVII'. figs. 1 & 2. 



Stem slender, tortuous, dichotomous ; barren branches with short erect 

 or recurved leaves, apparently in two ranks ; fertile branches lateral, 

 one-sided, in the form of sessile strobiles. These strobiles are the 

 Lepidostrobus Eichardsoni of my former papers. 



Under the name quoted in the above description, I described in a 

 former paper* a very singular specimen collected at Perry by Mr. 

 Eiehardson, and which, though at first sight it resembled a pinnate 

 leaf, I believed to be a cone of the nature of Lepidostrobus. More per- 

 fect specimens confirm this view, and show that these cones were 

 sessile on one side of a slender and probably creeping stem, termina- 

 ting in dichotomous branches having short, stout, slightly recurved 

 leaves, apparently in two rows. The generic name of Lepidostrobus 

 being no longer applicable, I propose to place the Plant in Lycopodites, 

 a genus no doubt at present somewhat unsettled, but in which this 

 Plant, at least, fairly deserves a place. 



7. PSLLOPHYTON. 



Fragments referable to this genus are very abundant at Perry, 

 * Canadian Naturalist, vol. vi. p. 174. 



