202 BERRY: MESOZOIC FLORA OF THE COASTAL PLAIN 
Myrtophyllum Warderi Lesq. Fl. Dakota Group 136. p/. 53. f- 
Io. 1892. 
Represented in the material from Court House Bluff by five 
fragmentary specimens beside the nearly perfect leaf figured. Leaf 
coriaceous but not thick, lanceolate, fully 18 cm. long, 2.2 cm. 
wide at the widest part which is near the middle from which point 
the leaf tapers nearly uniformly above and below, the margins 
being if anything slightly straighter below, decurring on the ex- 
tremely stout petiole. Midrib also very stout, slightly flexuous, 
apparently prominent in life, while the secondaries were thin and 
nearly immersed in the leaf substance. Secondaries very numer- 
ous, leaving the midrib at a very acute angle curving outward 
slightly and then upward, and running parallel and straight to 
join the marginal vein, which forms a hem all around the leaf and 
is but slightly looped from secondary to secondary and less than 
one millimeter from the margin. 
The genus Myrtophyllum was established by Heer in 1869 in 
his Moletein flora for leaves allied to Eucalyptus, with Myrtophyllum 
(Eucalyptus ?) Geinitzi as the type. Having found similar leaves 
in Greenland and supposed Eucalyptus fruits at the same horizon, 
he referred this species to Eucalyptus without question in 1882, in 
vol. 6 of his Fl. Foss. Arct. A great variety of leaves have been 
referred to this species, while numerous other Cretaceous species 
of Eucalyptus have been described, some apparently identical with 
it. While the type carries the generic term Myrtophyllum with it 
into synonymy, that term should possibly be retained for the 
reason that when the present unsatisfactory state of our knowledge 
of these species is cleared up it is more than probable that J/yrto- 
plyllum will have to be retained for a part of the forms at present 
included under &. Geznitzt, and also because of the doubt as to 
their being Eucalyptus leaves at all, due to the discrediting of the 
fruits, so that it may be found desirable to drop the name Auca- 
lyptus altogether and to take up Myrtophyllum for all of these 
leaves. Myrtophyllum Warderi was based on the lower half of a 
leaf from Kansas with which the Carolina material is identical. 
Some of the leaves referred to £. Geinitzi are also of this type, 
as, for instance, the Block Island leaf figured by Hollick (Ann. 
N. Y. Acad. Sci. 11: pl. g. f. 7. 1898) which specimen has, 
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