DR. W. R. M'NAB ON ABIES PATTONII. 211 
the two forms, notwithstanding Murray's figures of the leaves 
both in the “ Synonymy ? and also in the *Pinetum Britanni- 
cum, part iv., as he says (Prod. xvi. p. 429) that the leaves are 
“ad margines levibus vel apicem versus serrulatis.” Dr. Engel- 
mann's A. Pattoniana, to judge from the figure in Veitch’s 
‘Manual of the Conifere,’ p. 116, is Murray's A. Hookeriana, 
although given as distinct in that work. 
The coloured plate with the two supposed species represented 
in Lawson’s ‘Pinetum Britannicum’ requires some remarks. 
There can be little doubt that the figure of A. Hookeriana 
would be drawn from authentic specimens in Mr. Murray’s col- 
lection ; but in the absence of any statement regarding the source 
of the supposed specimen of A. Pattoniana, 1 would suggest as 
probable that the foliage is from a fresh specimen from the Royal 
Botanic Garden, Edinburgh, of Jeffrey’s Mount-Baker plant, 
while the cones were added from museum specimens of Jeffrey’s 
no. 430. As Jeffrey says the cones are “ about an inch long, pro- 
duced at the points of the branches, pendulous ” (see above), it is 
obvious that some error has crept in. 
Assuming that there are two forms, the question of names will 
turn entirely on the value to be assigned to Balfour’s name and 
description in the Oregon Circular of 1853. If A. Pattoniana, 
Balfour, stands, 4. Hookeriana, Murray, sinks; and Jeffrey’s 
Mount-Baker plant is an unnamed species, which might well bear 
the name of Tsuga Balfouriana. But I think we must hold that 
Balfour’s name and description were unpublished, the Circular 
of the Oregon Committee being an unpublished document, for 
private circulation; and we get a species correctly described, as 
regards the cone, by Mr. Andrew Murray in 1855 as A. Hooke- 
riana, and further in 1863 as regards the leaf. This is Jeffrey’s 
no. 430, and Mr. William Murray’s Scot’s-Mountain plant, as well 
as 4. Pattoniana of Balfour and Jeffrey's 4. Pattoniana in part. 
Abies Pattonii, Jeffrey MSS., 1851, is described correctly as 
regards the leaf by Mr. Murray in 1863; but up to the present 
the cone has never been described, except imperfectly by Jeffrey 
himself. The chief points in the very complex synonymy may 
thus be expressed for the two forms :— 
1. Tsuga Hookeriana.—Jeffrey no. 430, Cascade Mountains, lat. 42° N. 
Abies Pattoniana, Balfour, Oregon Circular, 1853 (unpublished). 
