'J G M/'s'cel/a lie a . 



for the pinnate species for which it was proposed, and thus retain 

 Cyclopteris for the simple, entire fronds, in accordance with the 

 original view of Brongniart. 



Otopteris ovata (M'Coy). PI. IX. fig. 2. 



Sp. Char. Frond pinnate'; rachis very thick, slightly flexuous ; 

 leaflets little longer than wide, ovate, pointed; upper lobe of 

 the base nearly twice the size of the under, the contracted, 

 thickened base set obliquely on the rachis ; veins fine, divari- 

 cating ; very frequently dichotomizing, nearly equal, but fasci- 

 culated at the base. 



The fasciculation of the nerves at the base resembles that of 

 the Cyclopteris Jiabellata. The regular, short, semi-elliptical form 

 of the leaflets distinguishes this from the other species of the 

 genus. The average length of the leaflets in the examples I have 

 seen is about 8 lines, width 7 lines, width of rachis Ij line. Occurs 

 in the hard siliceous flags of Arowa, N. S. Wales. 



Cyclopteris angustifolia (M'Coy). PI. IX. fig. 3 & 3 a. 

 Sp. Char. Leaf linear, lanceolate, eight or nine times longer than 

 wide ; sides straight, nearly parallel, pointed above, contracted 

 to a lengthened petiole below ; nerves equal, those of the middle 

 third of the frond nearly parallel, straight, rather closer than 

 those of the sides, which gradually divaricate towards the margin 

 at a very acute angle ; all the nerves dichotomise at irregular 

 intervals, and those of the sides occasionally anastomose and are 

 connected by a few transverse bars. 



In this curious plant we have, as it were, a connecting link 

 between the genera Cyclopteris and Glossopteris ; for although the 

 specimen I have drawn only exhibits the middle portion of the 

 frond, yet I have ascertained that the form is precisely that of a 

 narrow Glossopteris, hemg elliptical or pointed at the apex, and 

 tapering gradually to a lengthened petiole at the base, and still 

 further agreeing in the occasional anastomosing of the lateral veins, 

 and their being connected, though rarely, by transverse bars ; yet 

 it is impossible to refer it to that genus from the want of the strong, 

 characteristic midrib, the place of which is occupied by numerous 

 dichotomous nerves of nearly the same thickness as those of the 

 sides ; I am therefore obliged to refer it to Cyclopteris from a con- 

 sideration of its more important characters, although differing 

 remarkably in form from the other species of the genus as above 

 restricted. The portion figured, of the middle of a frond, measuring 

 3^ inches in length, and 9 lines wide at the base, only tapers 2 lines. 

 This species seems common in the gray shale of Guntawang, 

 Mudgec, N. S. Wales. 



Ord. Sphenopterides. 

 Sphenopteris lohifolia (Mor.). 

 Common in dark brown shale, Mulubimba, N. S. Wales. 



Sphenopteris alata (Br.) sp. 



Of large size in the fine gray sandstone of Mulubimba, N. S. W. 



Sphenopteris hastata (M'Coy). PI. X. figs. I & 1 a. 



Sp. Char. Bipinnate ; pinnae long, acutely lanceolate, with a broad 



