38 
ANNALS OF THE 
POLEMONIACE^. 
Phlox divaricata^ L. Penitentiary Bush, May 12th, 1859. 
CONVOLVULACE^. 
Ipomoea purpurea, Lam. (Convolvulus purpureus L. Pharbitis hispida, Choisy.) A 
weed in gardens, August 27th, 1859. 
AsCLEPIADACEiE, 
Asclepias Gornuti, Decaisne. A. Syriaca L. Cataraqui Cemetery. July 30th, 1860. 
OLEACEiE. 
M-axinus Americana, L. (F. acuminata et F. juglandifolia. Lam. F. epiptera, 
Michx.) River bank, Pittsburgh. May, 1860. 
Aristolochiace^. 
Asarum Ganadense, L. Penitentiary Bush. May 8th, 1859. 
Chenopodiace^. 
Ghenopodium album, L, A weed in gardens. July 28th, 1859. 
(7. hyhridum, L. Dr. Sampson's farm. July 23rd, 1860. 
Amarantace^. 
Amarantus hybridus, L. A weed in gardens. August, 1860. 
POLYGONACE^. 
Polygonum Convolvulus, L. Cultivated places. August llth, 1859. 
Rumex Acetosella, L. Barriefield. July 7th, 1859. 
El^agnace^. 
Shepherdia Canadensis, Nutt. Dr. Sampson's farm. July 23rd, 1860. 
SANTALACEiE. 
Comandra umhellata, Nutt. Dr. Sampson's farm. July 23rd, 1860. 
EUPHORBIACE^. 
Buphorbia Helioscopia, L. A weed in gardens. August 23rd, 1859. 
E. humistrata, Engelm. A weed in gardens. August 23rd. 1859. 
JuGLANDACEiE. 
Garya alba, Nutt. Kingston. May, 1859. 
The fruit of this tree is the well known Hickory Nut of commerce. Its wood 
is rather tough and elastic, making good adze, hammer, axe and pickaxe handles. 
It is also sometimes employed in shipbuilding. For heating purposes it is about 
the most valuable wood in Canada. It is also the heaviest of all our woods, its spe- 
cific gravity being about 0.93. 
CUPULIFER^. 
Quercus coccinea, Wang. Penitentiary Bush. May, 1859. 
Q. alba, L. Penitentiary Bush, May, 1859. 
The timber of this tree forms an important article of export from this country 
to Britain and the West Indies. Of all the eighteen species of oak to be found upon 
our North American Continent, the timber afforded by Q, alba approaches nearest 
