98 ON THE FOSSIL FLORA OF THE COAL DEPOSITS OF AUSTRALIA, 



R. incequilatera, Goeppert (as Cyclopteris Flora d. Silur-Devon. 

 unci unt. Steinkohlform), p. 72, tab. XXXVII, pp. 6, 7, and 8. 

 Schimper ('as Palceopteris). Paleon. veg. vol. 3, p. 485. Frond 

 pinnate, pinnae subimbricate, spreading very much, inequilateral, 

 upper side broadly rounded, truncate at the base at a right angle. 

 Petiole short, straight, decurrent. Veins united at the base, 

 spreading widely and dichotomously divided. 



Obs. — This species is identical with one found in Europe in the 

 Lower coal measures (Silesia), where, however, it is rare. It is 

 somewhat common in the beds at Smith's Creek and at Arowa. 

 Dr. Feistmantel gives many figures, and states that he believes 

 that Prof. M 'Coy's Otopteris ovata (Ann. Nat. His. loc. cit.) is 

 this species. From the figures one would say that they were 

 identical. Prof. M'Coy points out in his description that the 

 genus was the same as Goeppert' s Adiantites, and Unger's 

 Cyclopteris, but he referred it to Otopteris, because of its pinnate 

 leaves. The species is also considered by Feistmantel to be the 

 same as one not determined by Stur.* 



R. intermedia, Feistmantel (loc. cit. p. 75, Tab. 11.) Pachis 

 thick with a prominent mesial angle, pinnules alternate, pedun- 

 culate, oblong, rhomboid, incised into cuneate segments, the centre 

 longest, incisions scarcely marked above. Margins of the segments 

 denticulate, veins numerous, forking, radiating in the segments. 

 Port Stephens (Stroud) 1 In the form of the rachis this resembles 

 very much R. transitionis and R. machanecki, Stur. 



R. septentrionalis, Feistmantel, loc cit. p. 147. Tab. iv (xxn) 

 fig. 5. .Rachis as in the last species, pinnulse subalternate, with 

 short petioles, suberect, oblong near the rachis deeply lobed 

 and thence sub-flabelliform, lobes subrhomboid, deeply incised, 

 segments rounded above. Veins indistinct. 



Obs. — T his form is also somewhat like transitionis, Str , but it is 

 in every respect thinner and more slender. Smith's Creek, Stroud. 



R. rbmeri, Feist, loc. cit., p. 147. At plate 11 (xx), fig. 2 and 

 2a., Dr. Feistmantel gives the outline of a plant from the same 



* Culmflora d. Mahr. Schles. Dachschiefers, p. 75. 



