DESCRIPTION OF THE Sl'EClKS. 203 



links between the plants of the various localities which, as has been stated, 

 show so much tendency to isolation and local distribution. It is found 

 with the numerous Angiosperms of the two localities near Brooke, and con- 

 nects these with the plants of Dutch Gap and of Fredericksburg. Some 

 of the leafy stems must have been very large and wide-spreading. 



On some of the branches at their bases there are very distinct scars left 

 by the scales which invested the terminal buds. The branches seem com- 

 monly to have formed at their extremities a terminal and two opposite lat- 

 eral buds with which to continue the growth in the next season. The for- 

 mation of such buds on these plants and on Ccphahtaxopsis indicates that 

 there were well-defiued pauses in the growth of the branches. The leaves 

 seem to have been very persistent, as they are usually attached to the 

 stems 



The specimen given in PI. LXXXVI, Fig. 9, indicates well the 

 copiousness of the branching of this plant. It shows on the left hand at 

 base what seems to be a portion split off from a large stem, and attached 

 to this is a lateral twig, which has at base the marks of bud-scales. Near 

 its summit this in turn sends off two opposite lateral twigs. This specimen 

 and also that of PI. LXXXVIII, Fig. <S, show that the leaves tend to dimin- 

 ish in size when the twigs split up into sul)ordinate branches. This plant 

 in its mode of branching and in tlie shape of its leaves, as well as in the 

 arrangement of the scars of the bud-scales, is much 'ike Ccpkulotaxopsia, but 

 it has several nerves in the leaves. 



NaGEIOPSIS SUIil'ALCATA, sp. UOV. 

 Plat.' CLXVIII, Fig. 4. 



Stems comparatively very stout ; leaves narrowed gradually to the 

 base and apex, subacute, subfalcate, attached by a short slightly twisted 

 foot-stalk; loaf-substance thick and leathery; nerves not seen, but appar- 

 ently several, and as in Naf/ciojisis. 



Locality: Fishing hut above Dutch Gap Canal. 



Only one specimen of this plant was found. Its position is doubtful, 

 and it may be a Sequoia, for the foot-stalks seem to be decuri-ent. They 

 leave imprints on the stem resembling those of Sequoia. 



