until the sale of the collections there, that the specimens 
in collections in this country have been propagated. As 
regards size of leaf Populus lasiocarpa is undoubtedly the 
finest of all the poplars of which we have knowledge. 
Even a double plate of this work is insufficient to show 
the dimensions of its leaves in full; the blade not 
infrequently measures fourteen inches in length by nine 
inches in width and, whatever the measurement, is 
conspicuous for the rich red of the midrib and chief 
veins and petiole. In vegetative characters our tree 
resembles P. heterophylla, Linn., of the Eastern and 
South-eastern United States; its catkins, however, are 
very different, and its closest ally is doubtless P. glauca, 
Haines, from Tonglo in Sikkim; like this latter species 
it has polygamous flowers. The few flowering catkins 
seen were obtained from a cultivated plant, and may not 
be characteristic of the species. It should be mentioned, 
however, that P. glauca, so far as Mr. Haines has observed, 
produces in the wild state female or more frequently only 
hermaphrodite flowers; he found no male tree. The 
male catkins accompanying Henry’s specimens were 
picked up from the ground beneath a leafless tree in 
South Patung, and Prof. Oliver cautiously dealt with 
them as possibly not belonging to P. lasiocarpa. The 
flowers have much longer pedicels than those of the 
cultivated plant, and the disk is distinctly oblique. The 
anthers agree. Populus lasiocarpa flowered in 1914 in 
the gardens of Mr. F. C. Stern, Highdown, Goring-by- 
Sea, Sussex, and of Sir Harry Veitch, East Burnham 
Park, Slough, and the figure was prepared from material 
received from the former supplemented by catkins of more 
mature fruits from Sir Harry Veitch. The species thrives 
well on deep loam, and, like most poplars, enjoys 
abundant moisture at the root. Hitherto it has been 
propagated by grafting on stocks of the Black Poplar 
group, but it will eventually, no doubt, be found to 
succeed better on its own roots. 
DEScRIPTION.— Tree, 40-60 ft. high; young shoots 
angular, stout, more or less pubescent; buds large, 
Ad Leaves ovate, acute or shortly acuminate, regu- 
Jarly glandular-crenate-serrate, base deep cordate with 
