JURASSIC PLANTS FROM CROMARTY AND SUTHERLAND, SCOTLAND. 873 
specimen consists of a slender axis bearing three oval bud-like appendages approxi- 
mately 1 cm. long and 5 mm. broad. Two of these appendages are shown in fig. 6. 
An examination of the upper strobilus, which was facilitated by the application of 
immersion-oil to the surface of the rock,* revealed the occurrence of several broadly 
triangular imbricate bracts (fig. 7), the laminz of the lateral bracts (or sporophylls) 
being torn into ragged strips. Externally the appearance of the short branches is more 
suggestive of microstrobili than of vegetative buds. The centre of the strobilus ex- 
amined is occupied by a pith of parenchymatous cells containing a thick-walled idioblast 
surrounded by the fragmentary remains of a cylinder of secondary wood. The rest of 
the section is made up of the partially preserved tissue of the bracts with a few pieces 
of vascular strands composed in part of spiral tracheides. The peripheral region consists 
of torn strips of tissue (cf fig. 7). The general appearance of the sporophylls is 
suggestive of young organs of fairly homogeneous structure. In some of the imperfectly 
preserved sporophylls there are more or less spherical groups of apparently delicate 
cells which we are disposed to regard as immature sporogenous tissue (fig. 8, a). The 
section partially reproduced in fig. 8 shows a portion of the cortical tissue with several 
erowded sporophylls, but for the sake of clearness only one of these is represented ; 
it consists of parenchymatous cells, many of which have dark contents, and the group 
of thinner sporogenous elements is seen at a. 
The anatomical features, so far as they can be made out, favour the identification 
of the specimen as a branch of a conifer bearing immature microstrobili. 
Conites Juddi sp. nov. (Text-figs. 2-4; Pl. I. figs. 9-12; PI. IL. figs. 14-21.) 
The most puzzling specimens in the collection with which we are now concerned 
are some imperfectly petrified cones collected by HucH MituEr at EHathie Bay; they 
differ from one another in size, but agree generally in the form and structure of the 
cone-scales. While for the most part the tissues were partially destroyed before 
petrifaction, the preservation in some cases leaves little to be desired. We include 
all the specimens under one specific name, but for the sake of convenience the individual 
fossils are distinguished as varieties or ‘‘ forms.” 
The species may be defined as follows :—-Cones vary in size from 3 cm. long by 
2°5cm. broad (forma a, text-fig. 2, B) to 9 em. long and 4 cm. diameter (forma 8, 
text-fig. 2, C); they are almost spherical or elongate-oval in form. A thick axis bears 
spirally disposed thick scales attached by a comparatively slender base and expanded 
to a thick and bluntly terminated distal portion characterised by a slightly upturned 
and projecting upper margin (text-fig. 2, B, C; Pl. II. fig. 19). The scales are more 
or less cuneate or kite-shaped in surface-view, resembling the scales described by 
Heer and other authors as species of Dammara, and by Houuick and JEFFReEy as 
Protodammara. They consist of parenchymatous tissue containing numerous thick- 
* A method adopted by Dr Hatux of Stockholm. 
