™ as 
OF THE GENUS PINUS. 597 - 
34. Prxus Coutert, D. Don; Sargent, Silva, xi. (1897) p. 99; 
Masters, in Gard. Chron. March 28, 1885, p- 415, figs. 73, 74. 
A. noble Californian Pine of pyramidal habit, growing on the 
mountains near the coast. The old bark flakes off in irregular, 
thin, smoky~brown plates. The herbaceous shoots are glaucous 
green flushed with pink, and traversed with numerous resin- 
canals ; they are clothed nearly to the base with leaf-tufts. The 
buds are very large, reddish-brown, ovate-oblong. The leaves 
are three-sided, with stomata on all sides. The hypoderm-layers 
are very thick, projecting inwards in wedge-shaped masses, and a 
similar layer of stereome-cells surrounds the resin-canals in the 
substance of the leaf. The endoderm-layer consists of about 
60-70 cells, rarely fewer, much thickened on the outer walls. 
The meristele is elliptic in section, with a thick band of stereome- 
cells separating the two divisions of the fibro-vascular bundle. 
The mesophyll-cells are plicated (see Pl. 22. fig.7). The cones 
are usually very large. 
In our museums there appear to be two forms of this 
species, the cones of which differ. In the one case (the true 
P. Coulter’) the strongly beaked scales are very prominent 
and more or less spreading ; whilst in the other the apophyses 
are much less prominent, and the beaked extremity much smaller. 
As I have only seen detached cones, I am not able to form a 
definite opinion whether or not the cones with the smaller scales 
and less prominent tips belong to a distinct species or not, but 
they probably belong to a form of ponderosa. 
In the young cones of P. Coulteri the apophysis tapers 
gradually into the curved spur-like umbo. The cotyledons vary 
in number from 10-14. 
35. P. Saprnrana, Douglas; Sargent, Silva, xi. (1897) p. 95; 
Alasters, in Gard. Chron. J uly 14, 1888, p. 36. 
A tree discovered by Douglas in 1826, but the specimens and 
notes relating to which were lost when crossing a stream. (See 
‘Companion’ to the Botanical Magazine, ii., Nov.1831.) Itisa 
native of the dry foot-hills of Western California. 
It is a well-defined species, in the happy position of having no 
synonyms. The herbaceous shoots are glaucous, devoid of leaves 
near the base, and they contain a double row of resin-canals. The 
leaf-section is three-sided, dorsum convex, sides concave, with 
stomata on all surfaces. The hypoderm is continuous and pro- 
