® 
178 THE MEDALS OF CREATION. Cuap. VI. 
branches, resembling those of Araucaria excelsa, and which 
are thickly beset with foliage. The leaves are sessile, com- 
pact, enlarged at the base, tetragonal or falciform, and 
slightly decurrent ; they often vary considerably in form 
and length on the same bough. The branches are in some 
Lien. 60. WALCHIA HYPNOIDES; 4 nat. 
Permian, Lodéve. 
Part of a bough with six of the branches bearing terminal cones. 
examples terminated by oblong cones, composed of imbri- 
cated, oval ‘or lanceolate, pointed scales, the summits of 
which are not recurved, as in the Araucariz. The trees of 
this genus are closely related to the Araucaria excelsa, and 
A.Cunninghami. Some species occur in the Coal formation 
at St. Etienne and Autun ;* others (as Walchia hypnoides) 
in the schists of Lodéve, and in the copper slates of the 
Zechstein in Mansfeld.t 
Asiretites.—To the Abies, or Fir, several cones found in 
the Wealden deposits of Sussex and Hants closely approxi- 
mate in the form and structure of their scales. The most 
remarkable is the very elongated coniferous fruit, first disco- 
vered by me in the Wealden at Brook Point, and described 
and figured in my Geology of the Isle of Wight (2d edit. 
p. 452), under the name of Abietites Dunkeri, in honour of — 
* “Mines de Houille de Vettin, &c.” See “Tableau des Vég. 
Foss.” p. 70, par M. Brongniart. 
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i Sa- 
