BA a EE a 2 
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February 6, 1908 © 4 7 
Branches terete, the fallen leaves strongly tuberculate. 
Leaves solitary, linear, the midrib prominently subtetragonal on 
both sides, acuminate, mucronate, truncate at the base, 7-8 lines 
long, a little less than a line in width. Cones clustered, ovate 
or oblong, an inch or an inch and a half long. Scales oblong, 
obtuse, the apices subemarginate, undulate or slenderly and ir- 
regularly denticulate, 5 lines long, 3 lines wide. Bractlets ovate- 
lanceolate, acute, twice shorter than the scales. 
There is preserved in the herbarium of Fisher a variety 
with the leaves smaller, broader, and a little less acuminate; 
the scales evidently emarginate and more denticulate, than Mer- 
kius collected on the coast of western North America (Sandwich 
Sound). 
THUJA EXCELSA 164. A tall tree, the spreading branches 
drooping. Leaves decussate-opposite (vel, si mavis, quadriafaria) 
imbricate, strongly appressed, ovate, acute, very glabrous, quite 
smooth, entirely concealing the young branchlets, which are 
subtetragonal; on the older branches the apices standing apart, 
broadly amplexicaul at base. Cones globose, from 4 obovate, 
obtuse scales, armed with a prickle sometimes erect, sometimes 
recurved. Seeds bony, triangular, oblong, encircled on both 
sides by a broad entire membranous wing. ; 
It differs from 7huja occidentalis: 1 young branches less 
compressed; 2 leaves smooth (uot tuberculate-glandular); 3 wing 
of the seed much broader. 
Juncus MERTENSIANUS 167. Culm erect sheathed at the 
base, folio uno alterove plano lineari basi vaginante; flowers 
capitate, triandrous, the outer parts of the perianth carinate sub- 
ulate the inner a little longer; capsule. . 
Plant caespitose, low. Culm sheathed at the base, applan- 
ate, striate, glabrous. Sheaths membranaceous, loose at the 
base, leafless. Cauline leaves 1-2, plane, linear, acute, glabrous, 
striate, 1-2 inches, sheathed at the base; sheaths lax, the margin 
membranaceous, striate. Involucre similar to the leaves. Flow- 
ers capitate, dark purple. Heads frequently two. 
