NOTES ON WEST AMERICAN CONIFER. 229 
by David Douglas, Pinus insignis. Loudon’s being the first 
exact description was adopted by most botanists of the 
period; and if description in fullness of detail, with figures 
of important organs, may be insisted upon, the selection of 
Pinus insignis, Douglas, must be commended. But over this 
name Don’s P. radiata has priority by seven years; and this 
last is the one which, in my judgment, must hold for the 
Monterey pine. 
KNoB-conE Pine. 
Theodor Hartweg must be credited with the discovery of 
the Knob-cone pine. He found it in 1846, while exploring 
the Santa Cruz mountains at a point about twenty miles by 
sea northward from Monterey, His account of it was pub- 
lished in Jour. Hort. Soc., London, ii, 189, (1847). Think- 
ing the tree “probably the doubtful and little known P. 
Californica of Loiseleur,” he described it at some length: 
“The tree seems to be of slow growth, seldom more than 
twenty-five feet high and eight inches in diameter; the leaves 
are in threes, about 44 inches long; cones oblong, five to five 
and one-half inches long by two inches wide, the outer sur- 
face much developed, enclosing the winged seeds. The cones 
are only produced on the main stems; when ripe they are of 
a light brown color, and they stand off at right angles from 
the tree; when old they are of a silvery gray.” He concludes 
with a most important character concerning the cones, de- 
scribing them as “pressing firmly upon the stem for a series 
of years without opening and shedding their seeds.” If he 
had happened to have given it a name he might have become 
the author of the species, but ‘“Californica” cannot be dis- 
tinguished except grammatically from Californiana, so Hart- 
weg’s name falls among the synonyms. 
Two years later (1849), Geo. Gordon described in Jour. 
Hort. Soc., iv, 212, “Some newly-introduced conifers collected 
by Mr. Hartweg in California.” The list embraces three 
Species of pine, and the paper is preceded by the remark, “As 
Professor Don’s materials were very imperfect, so his de- 
Scriptions were defective and inaccurate, which led Mr. 
