896 General Notes. | [ November, 
ajanensis Fischer, P. Glehnii Fr. Schmidt, *7suga Sieboldi Carr., 
*T, diversifolia Masters, Abies firma Seib. et Zucc. (includes also 
the forms hitherto known as A. difida Seib. et Zucc.), *A. brachy- 
phylla Maxim., A. Veitchii Lind., A. Sachaliensis Masters, *A. 
homolepis Seib. et Zucc., *A. Mariesii Masters, *Larix leptolepis 
Endl. The value of this paper is greatly enhanced by numerous 
excellent figures, and by what appears to be a full list of the 
numerous synonyms under which these plants have been known. 
It cannot fail to receive attention from the growers of Japanese 
Conifers in this country, and it is to be hoped that it will serve to 
better the nomenclature of these trees in the gardens and cata- 
logues of our nurserymen, to say nothing of its use among hot- 
anists themselves. 
A Pocket Manuat oF Botany WantTED.—Why has not some 
enterprising book-publishing house given the army of collecting 
botanists in this country a neat little pocket manual of botany 2 
Every one who has ever collected at all (and what botanist has 
not ?) has felt the need of carrying a manual with him to enable 
him to call to mind certain peculiarities which require rene 
tion in the field; but the burden of carrying a rather large ai 
somewhat heavy book on a long jaunt, is often too much in addi- 
DeE- 
LEMNA POLYRRHIZA AGAIN DISCOVERED IN FLOWER ON THE I 
TROIT RIVER.—On July 24, 188t, after an interval of ten fee Pe 
have again found Lemna polyrrhiza L, in flower, in great Michi- 
ance, in the same pond on Belle Isle, in the Detroit river, ; i ne 
gan, in which my first discovery (of July 30, 1871) was M4 S tia 
specimens at that time determining the fact, which had aor 
puted, that the flower contained two ovules. (See pec 
Naroratist, Vol. 5, p. 652.) The flowers were in every stag* 
of development, some being in bud (the stamens still encl x 
the spathe), some in full blossom, while others were past ©! &._ 
to seed. The shade of overhanging growths, such as WI ’ 
thus situated, the frond, as I have observed, being 
__ time reduced in size. As might be expected, in clusters Tr 
senting fronds of various stages of growth, the older cece bate 
the flowering ones, oe 
