BY THE REV. J. E. TENISON-WOODS, F.G.S., F.L.S. 163 



common with Araucaria except the leaves and the structure of the 

 wood. In other respects they were found to belong to many 

 widely separated families. The genus Araucarites is now restricted 

 by Schimper to two species. In referring as I do to the following 

 species to the genus Walchia, I do so mainly because of the 

 general similarity of the leaves, and the structure of the male 

 amentum to which I shall presently refer. Otherwise the resem- 

 blance is to Araucaria as far as the leaves go. 

 Walchia. Sternberg. 



Arborescent plants of the habit Araucaria of the sections 

 Eutacta* or Dacrydium, branches pinnate, ramulose, branchlets 

 alternating and spreading. Leaves of two kinds, the shorter ovate 

 or linear imbricate, the longer linear lanceolate and gathered into a 

 tuft, incurved at the apex, or falcate and erect from the base, sub- 

 decurrently spreading, keeled on the back and finely striate. 

 Cones terminal, oblong, cylindrical or elongate, scales ovate- 

 acuminate or lanceolate, seed solitary in each scale, ovate, 

 minutely apiculate. Male amentum (?) composite, anthers axillary, 

 oval. 



Schimper says of the genus that it partakes of the character of 

 Araucaria and was for a long time regarded as a Lycopod in spite of 

 its different mode of ramification. (Lycopodites, Brongniart and 

 Unger.) With Ullmannia it is characteristic of Permian period. 

 They are the most ancient Conifers of which the leaves and fruits 

 are found, though coniferous wood occurs in the oldest paleozoic 

 carboniferous formations. The two genera named disappear in 

 Europe at the close of the Permian. Voltzia, Albertia and Glyp- 

 tolepis take their place in the Trias. 



Walchia milneana, n.s. Plate 2, fig. 3. Branches obtuse, leaves 

 very closely imbricate, spirally disposed so as to leave three to four 

 visible in each spiral ; falcate, acuminate, breadth at base, half the 

 length, mucronate, in young branches, obtuse in the older ones, 

 curving together in linear scale-like leaves at the top. 



* In this section Euctata the cones are small, terminal and globular ; 

 unequal shaped and small. In Dacrydium the fruit is fleshy and erect, and 

 the leaves acicular or scales and opposite. The Araucarias moreover differ 

 from the pines and firs in having the sexes on separate trees. 



