22 DR. M. T. MASTERS ON THE 
visible at the apex in the form of a projecting point, though 
Endlicher describes the scales as “ ebracteate.” 
The anatomy of the leaf is briefly described by myself in the 
‘Gardeners’ Chronicle,” 1885, August 29, p. 270, sub 4. cu- 
pressotde. 
The species are natives of Tasmania. 
The resemblance to recent Athrotaxis of Echinostrobus Stern- 
bergii *, from the Upper Oolite of Solenhofen, is very striking. 
Other closely allied species occur at Stonesfield and at Scarborough. 
SEQUOTA. 
Originally included under Taxodium, this genus was separated 
in 1847 by Endlicher, who even included it under Abietinee. 
The foliage is homomorphic (or dimorphic in young trees 
of §S. sempervirens), decurrent, spirally arranged or pseudo- 
distichous. The male flowers are catkin-like, stipitate, terminal, 
or on the ends of lateral shoots. Stamens arranged spirally. The 
anther-crest is ovate-convex, with 2-5 anther-lobes. Pollen 
simple. The female cones ripen in the second year, are terminal, 
the leaves passing gradually into the bracts, which in the young 
state are longer than the scales. The fruit-scales spring at right 
angles from the axis of the cone, are wedge-shaped at the base, 
clavately thickened above, and flattened at the summit in more 
or less peltate fashion as in Cupressus. Endlicher’s statement 
that the scales are ebracteate is clearly the result of an oversight, 
as the bracts are very evident in the young condition and are 
generally conspicuous even in the mature state. Microscopic 
examination, of course, reveals the existence of the bracts. The 
inverted seeds have lateral wings. Cotyledons 4-6 (Engelmann). 
In Sequoia gigantea the leaves are more or less angular, with 
the midrib prominent above. The exoderm is discontinuous, the 
palisade-cells on all sides, but the endoderm is not well marked. 
The fibro-vascular bundle is elliptic in section, undivided, and 
there is a single resin-canal of large diameter next to the phloem. 
The structure in S. sempervirens is similar, allowance being made 
for the flattened form of the leaf. 
The two species, S. gigantea(Wellingtonia) and S. sempervirens 
(Red Wood), are natives of California. The genus was abun- 
dantly represented in the Tertiary and even in the Secondary 
epoch in Central Europe and Greenland. 
* See Renault, ‘Cours de Botanique Fossile,’ Coniféres (1885), tab. 12. f. 4. 
