RUFFORDIA. 85 
V. 2351. Agrees with V. 2354, except in the slightly greater 
breadth of the ultimate divisions. Venation distinct. Associated 
with this fragment are others of a much more narrowly segmented 
form; this juxtaposition on the same rock-surface of pieces of 
fronds showing considerable difference in the breadth of the 
pinnules is of common occurrence. Kcclesbourne. ufford Coll. 
V. 2354. Part of a larger frond, with the pinne somewhat 
farther apart than in most cases; the segments are of median 
breadth and agree closely with the pinnules of other specimens 
referred to this species. This specimen appears to show the 
quadripinnate character of the frond. 
V. 23542. Rachis showing sub-opposite and alternate pinne ; 
pinnules short and of medium breadth; a more open habit than in 
most specimens. Hcclesbourne. Rufford Coll. 
The following specimens illustrate various forms of Ruffordia 
Goépperti (Dunk.), but show no characters other than those to 
which reference has already been made in the descriptions of more 
perfect examples. 
V. 2151, V. 2152, V. 2153 (several specimens), V. 2156. Cf. 
Pl. V. Fig. 33 (V. 2156), also Pl. V. Fig. 4 (V. 2248), V. 21662, 
V. 2294. Ecclesbourne. Rufford Coll. 
V. 2877. Fragments of the coarser and finer forms of pinne. 
Near Hastings. Beckles Coll. 
2.—Ruffordia Gopperti, var. latifolia. 
As a convenient method of expressing the difference between the 
extreme forms of this species, characterized by the greater breadth 
of the ultimate segments, and those with narrowly linear segments, 
such as the specimen figured in Pl. LV. (V. 2157), I have decided 
to designate the more broadly-lobed forms by the term Jatzfolia. 
V. 2333. Pl. VI. Figs. 1 and 1a. 
The portion of the frond figured may possibly be a basal pinna. 
The close resemblance between such specimens as this and Spieio- 
