1865.] DAWSON — COAL-FOEMATION. 153 



Logan's collection shows a woody jointed stem like that of Astero- 

 lohyUites, giving off branches at the joints ; these again branch and 

 bear whorls of leaves. The stem shows under the microscope a 

 single bundle of reticulated or scalariform vessels like those of some 

 ferns, and also like those of Tmesipteris, as figured by Brongniart. 

 This settles the affinities of these plants as being with ferns or with 

 Lyco^podiacece. 



PiNNULAKIA, L. & H. 



1. PlNNULARIA CAPILLACEA, L. & H. 



M. C, Sydney {B. Brown), 



2. P. RAMOSissiMA, spcc. nov. 



More slender and ramose than the last. 

 M. C, Joggins {J. W. D.). 



3. P. CKASSA, spec. nov. 



Branching like P. capiUaceay but much stronger and coarser. 



L. C, Horton ((7. F. Hartt). 



All these are apparently branching fibrous roots, of soft cellular 

 tissue with a thin epidermis and slender vascular axis. Perhaps 

 they are roots of Aster ophylUtes. 



Genus NcfiGGERATSiA, Sternberg. 



1. NCEGGERATHIA DISPAR, SpCC. UOV. PI. XIII. fig. 91. 



A remarkable fragment of a leaf, with a petiole nearly 3 inches 

 long, and a fourth of an inch wide, spreading abruptly into a lamina, 

 one side of which is much broader than the other, and with parallel 

 veins running up directly from the margin as from a marginal rib. 

 It appears to be doubled in at both edges, and is abruptly broken 

 off. It seems to be a new species ; but of what affinities, it is im- 

 possible to decide. 



Bay de Chaleur {Sir W. E. Logan). 



2. N. FLABELLATA, L. & H. 



M. C, Sydney (B. Brown). 



Cyclopteris, Brongn. 



(including Cyclopteris proper, and suhgenersi Aneimites, Daws., and 



Neuropteris, Brongn.). 



1. Cyclopteris heterophylla, Goeppert. 

 M. C. and U. C, Joggins (J". W. D.). 



2. C. (Aneimites) Acadica, Dawson, Quart. Journ. Geol. Soc. vol. 



xvii. p. 5. PI. YIII. fig. 32. 



Stipe large, striate, branching dichotomously several times. 

 Pinnae with several broadly obovate pinnules grouped at the end of 

 a slender petiolule, and with dichotomous radiating veins. Pertile 

 pinnae with recurved petiolules, and borne on the divisions of the 

 main petiole near their origin. This plant might be placed in the 

 genus Adiantites, Brongn., but for the fructification, which allies, it 



