IS 
III —DESCRIPTION OE THE SPECIES. 
CRYPTOGAMS. 
Filices. 
Pteris Htjmei, sp. nov.* 
Plate I, Figs. 1-6. 
Sp. Char. — P. frondc in superiore parte bi- 5 in medio et inferiore parte 
tri-pinnatipartita, segmentis oppositis alternisque, integris vel lobatis vcl 
incisis, distantibus vel approximate, oblongis, obtusis vel acuminatis, lobis 
ovatis vel abbreviato-ovatis, apicc obtusis vel acutiusculis, integerrimis vel 
crenulatis, vel obsolete dcntatis ; nervatione Aletliopteridis genuinse ; nervo 
primario angulis acutis egrediente, recto, snbprominente, apicem versus 
valde attenuatis ; nervis secundariis subangulis acutis orientibus. 
Ohs . — The fragments of fronds here figured (PL I, figs. 1-G), were 
obtained from a rather large piece of rock, and belong most probably to one and 
the same individual. This possessed a frond of considerable size, characterised 
by the variation in the composition, form, and arrangement of the segments. 
The upper portion of the frond is twice pinnate, as shown in Pig. G, which is 
a representation of such a portion ; in this, the primary pinnae are joined to 
the rachis at acute angles, lanceolate to linear-lanceolate, always acuminate; 
secondary pinnae oblique, ovate, entire, more or less elongate, rounded at the 
apex, or merely obtuse ; the middle and inferior portion of the frond, accord- 
ing to the other remains represented on Plate I, shows distinctly a more 
* [It must be distinctly understood that the abbreviated words, 11 sp. nov.,” arc retained here simply as a 
portion of the translation of Professor Ettingshausen’s memoir. The species ceased to be new on the publication 
of the work in its original German form. — R.E., jnr.] 
