134 General Notes. [ February, 
stimulate a search for these interesting plants by American bot- 
anists, and it is to be hoped that during the coming season all 
collectors who can do so will render what service they can by 
gathering abundant specimens and forwarding them to Dr. Allen, 
at 10 East 36th street, New York. There are few localities in 
which half a dozen or more species cannot be found. We are in- 
formed that the author has already material for forty or fifty spe- 
cies or clearly marked varieties, and is confident that the number 
will eventually reach seventy- five—C. E. B. 
Tue PEpperIpDGE Tree IN Maine.—Our attention has been 
called by Professor G. H. Stone of ‘Kent’s Hill, Maine, to the 
fact that the pepperidge or tupelo (Nyssa multiflora) is a native 
of Maine, although neither Gray nor Wood so state in their 
manuals, It is given as one of the trees of the State in the 
“Portland Catalogue of Maine Plants, 1867,” and according to 
Dr. Goodale, was found at Winthrop and Waterville, by the late 
Dr. Holmes. Professor Stone sends specimens from Kent’s Hill, 
Kennebec county. The importance of this note lies in the fact 
that Vasey, in his “ Catalogue of the Forest Trees of the United 
States,” gives its range as “from Massachusetts to Illinois, and 
Southward,” while Sargent, in his preliminary “ Catalogue of the 
Forest Trees of North America,” gives it as from “ West Milton, 
Vermont, South to Florida; West to Michigan, Missouri and 
Arkansas.”—C. E. B. 
HISTOLOGY OF THE PuMPKIN StEM.—Professor J. C. Arthur has 
been studying the stem of the pumpkin, and in an article in the 
oe Gazette sums up the tissues as follows : 
“ ieeHs System ; Fibro-vascular System : 
pide 
Stomata 
Hairs : Sieve-tubes 
Fundamental System : Phloem parenchyma. 
Interfascicular parenchyma. Xylem 
Hypodemia. Vessels. 
Cortical wood. Annular. 
Cortical parenchyma, iral. 
Collenchyma. Reticulated. 
Scalariform. 
Pitted. 
Wood parenchyma. 
Professor Arthur directs attention to the value of the pumpkin- 
stem for use in the instruction of classes in the Botanical Labora- 
tory, furnishing, as it does, so many examples of the tissues of 
the higher plants. We can also testify to its value, having used 
it for many years for the purpose recommended. We always 
secure every autumn several feet of stems, which we cut up and 
preserve in jars of alcohol, for future use in the laboratory. 
FERTILIZATION OF AQUILEGIA.—The species of Aquilegia to: 
which I referred, and on“which Mr. Trelease comments, have 
nectaries of 40 millimetres long; while 21 is the longest bees- | 
