778 REPORT—1904., 
in the fact that, so far as could be ascertained, all its appendages were fertile. 
No indication of sterile bracts is met with. 
The appendages are only slightly connate at the base; each lobe, whether 
dorsal or ventral, divides palmately into several segments, the sporangiophores. 
‘The sporangiophore consists of a slender pedicel terminating in a peltate lamina 
of somewhat complex structure, bearing two pendulous sporangia. In this respect 
the new cone resembles the Bowmanites Rémeri of Solms-Laubach. The structure 
of the sporangial wall agrees, on the whole, with that met with in other 
Sphenophyllaceous and Calamarian strobili. The spores, so far as observed, are all 
of one kind, and are of ellipsoidal form, with longitudinal ridges on the outer 
membrane. 
The fructification may provisionally bear the name Sphenophyllum fertile. 
2. On some New Lagenostomas. By D. H. Scort, M.A., Ph.D., F.R.S., 
and K. A, Neweitt Arper, M.A. 
The recent discovery, based upon evidence from petrified material, that 
Lagenostoma Lomaxi, Will. in MS., is the seed of Lyginodendron, a genus of 
Cycadofilices now placed in Pteridospermese, has been followed by the recognition 
of more than one new species of Zayenostoma preserved in the condition of casts 
or impressions, The specimens in question have also thrown light on the manner 
in which the seeds were borne. The new species differ in their external mor- 
phology from all those previously described. In one of them, which we propose 
to name LZ. Kidstoni, the seeds are naked, but in the other, ZL. Sinclart, Kidston 
in MS., there are indications of an external envelope or cupule. In ZL. Kidstoni 
the seed is lobed at the free end, recalling the structure of the petrified seed 
L.. physoides, Will. { 
Both the new seeds are found in close association with rachis-like structures; 
in the case of LZ. Sinclari continuity is obvious, for the seeds are borne terminally 
on branches of the slender rachis. 
In Z. Kidstoni the evidence of connection is less decisive, but in one case the 
seeds appear to be iz situ on one of the finer branches of the rachis. Thus in 
both cases the seeds were apparently borne on the ultimate branches of a frond in 
which the lamina had been greatly reduced. There are indications that the fronds 
were of the Sphenopteris type. 
Both species are derived from the Lower Coal Measures of Scotland. The 
authors are much indebted to Mr. R. Kidston, F.R.S., for his kindness in lending 
them the specimens of Lagenostoma Sinclari for investigation. 
3. Observations on Structure of the Leaf-trace of Inversicatenate Filicine. 
By Professor C. Ea. Brrtranp and Professor F. CoRNAILLE. 
In the living ferns the conducting element is a bipolar bundle (F). The 
bundles arrange themselves into single chains joining one another by their poles. 
When there is a breach of continuity, it occurs in the centre of figure. If 
there is one breach involving two consecutive bundles of the chain, it isolates a 
divergeant, which can also serve as distinct element, which we letter Y. 
Again, all leaf-traces of living ferns present a posterior are, whose concavity 
is turned towards the upper part of the frond; they have also two anterior half- 
arcs, which are turned in from the marginal face towards the anterior face and 
toward the plan of symmetry of the frond ; they can be also joining others at the 
concavity of the posterior arc. The variations observed, such as the guadruple 
element of Asplenium nidus, Scolopendrium officinale, Marsilia, are modifications 
which can bear an obvious relation to the general arrangement of a chain, as the 
one of Osmunda regalis. 
The object of the study of Professors Bertrand and Cornaille is to show that 
