171 
Eucalyptus Houtmanni, sp. nov. 
Plato XV, Figs. 3, 3a. 
Sp. Char. — E. foliis coriaceis, late lanceolatis, utrinque angustatis, 
integerrimis ; nervatione brocliidodroma ; nervo primario iirmo, prominente ; 
nervis secundariis sul)angulis 65-75° orientibus, approximates, tenuibus, sub- 
flexuosis, nervo marginali inter se conjimctis ; nervis tertiariis vix conspicuis. 
Ohs. — Differs from the other Eucalypti described here by its larger and 
broader leaf. Besides, this species deviates from Eucalyptus Mitchelli by 
the secondary nerves diverging at more obtuse angles, and from E. Diemenii 
by the more distant secondary nerves. The nervation is represented in Eig. 3a, 
enlarged. 
Corresponds to Eucalyptus Haidingeri, Ett., of the European Tertiary 
Elora, and to E. robusta, Smith, of the living Elora. 
Locality and Horizon. — With the preceding species. 
Eucalyptus Hayi, sp. nov. 
Plate XV, Figs. 4, 5, 5 a. 
Sp. Char. — E. foliis coriaceis, petiolatis, lanceolatis, utrinque attenuatis, 
integerrimis ; nervatione brocliidodroma ; nervis secundariis subangulis 30-40° 
orientibus, approximatis, tenuibus, flexuosis nervo marginali inter se cou- 
junctis ; nervis tertiariis e secundariis extus angulis variis acutis obtusisque 
egredientibus, inter se conjunctis. 
Ohs. — This species is different from the others here described in its 
secondary and tertiary nerves. The former are more flexuous, and diverge 
from the primary at more acute angles, the latter, varying in their angles of 
divergence, are unequal in their course, longitudinal and transversal inter- 
mixed, especially on the forepart of the leaf. The network partly preserved 
on the specimen, Eig. 5, is represented in Eig. 5a, slightly enlarged, and consists 
of irregularly-edged meshes. 
Of the living Eucalyptus, E. resinifera, Smith, and E. pilularis , 
Smith, show a striking similarity to the fossil in leaf-formation. 
Locality and Horizon. — With the preceding species. 
