■ V1R<' 



f^ 



'-.A v,:: 



PRE-CARBONIFEROUB PI-ANTS. 



# 



ters separating it from the specimens found in the Carboniferous. It was 

 a true Calamitea, and several of my specimens show the scars of the 

 branchlets at the tops of the ribs. I have also specimens showing the 

 base of the stem, terminating in an oblique blunt point, exactly as in the 

 Carboniferous species, and showing that these plants grew in groups or 

 stools in the manner of ordinary Calamites of the Co?l Measures. 



26. Calamites Sp.— (PI. IV, Fig. 49,)— M. D., St. John, New Bruns- 

 wick. 



Among Prof. Hartt's collections from St. John is a fragment of an erect 

 stem about five inches in diameter, showing one node similar to those of 

 C. tramitionis, but with the ribs twice as wide as in specimens of that 

 species of the same size. The ribs are, however, very variable in the same 

 species in Calamites. It has remains of woody tissue on the surface, 

 which show obscure indications of large reticulated or multiporous vessels, 

 similar to those of ordinary Calamites (Fig. 49 a). It may possibly 

 indicate a distinct species, intermediate in external characters between C 

 fransitionis and C. inornatus, or may perhaps bo a variety of the latter. 

 In any case its tissues seem to be those of an ordinary Calamite. 



Genus Anarthrocanna, — Goept. 



26. Anarthrocanna Perryana, Dn.— J. G. S., XIX, 461 ; PI. XVIII, 

 Fig. 21.— U. D. Perry, Maine. ^ 



"^ 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 decurrent verticillate (?) petioles or branchlets (?). 



I place this fragment in connection with the Calamites with some doubt ; 

 the only specimen found being very uncertain in its relations. , 



(^AsterophylUteoe.') ., . /, 



Genus Asterophyllites, — Bronq. 



27. Asterophyllites parvula, Dn. — Canadian Nat. VI, 168; Fig, 



6. — M. D., St. John, New Brunswick. ;:>,^'^,;■,i^i.,. ..., 



" Branchlets slender ; leaves five or six in a whorl, subulate, curving 

 upwards, half a line to a line long; intervals equal to the' 

 length of the leaves or less ; stems ribbed, with scars of ver- 

 "■ ticillate branchlets at the nodes." 

 "^Only a few small fragments of this species have been added to my 

 former collections. It seems to be very rare. ' , 



.dui^ 



