densis, unless it be that the latter is the taller.plant of. the two. Pursh describes it as monoecious, but all my
specimens, both from British America and from the United States, are truly ditecious, as observed by Linmeus.
The fibre of the stem is copious and strong, and Mr Whitlaw endeavoured to recommend it to this country
as an article of commerce.
2. BCEHMERIA. L.
1. B. cylindrica (W illd.); foliis opposite ovato-oblongis acuminate dentate glabris,
floribus dioicis, spicis masculis glomeratis interrupts, fcemincis cylindricis, caule herbaceo.
Ph. Am. 1. p. 113,—Urtica cylindrica. X,.—■ 3. spicis brevioribus subcapitatis. Urtica
capitata. L .?—Ph. Am. 1. p. 113.
H a b . *. and p. Canada. Ph. Cleghom. D r Holmes— I have already, in my account of Mr Drummond’s
plants from the Southern United States, observed that I consider the Urtica capitata as a mere var. of Bceh-
meria cylindrica.
3. HUMULUS. L.
1. H. Lupulus. L .—E. Bot. t. 427. Ph. Am. l.p . 199.
H a b . Plentiful o n the higher parts of Red River, and on the Assinaboine in the 49th lat., which is its
northern range, and where o n ly in favourable seasons it perfects its fruit. Douglas. New Brunswick. Mr
Kendal.
4. .CANNABIS. L.
1. C. saliva. L .—Ph. Am. \.p . 199.
I H ab. Canada. Mrs Percival. Lake Huron. D r Todd.
Ord. LXXXVII. ULMACEiE.
1. ULMUS. L.
1. V. Americana. L.—Mich. N. Am. Sylv.« S .p . 83. t. 136. PA. Am. l.p . 198.
H a . Canada. Ph.—Saskatchewan to York Factory, Hudson’s Bay.
2. U. fulva. Ph. Am. 1. p. 199.
Hab. Canada. Ph. Drummond.-Leaves of what I take to be this, and flowering specimens of two species
of Elm. are in the collection, but they cannot be determined satisfactorily.
2. CELTIS. L.
1. C. occidental*. L .-M ic h . N. Am. Sylv. 3. p. 45. t 114. Ph. Am. 1. p. 300.
H a . . Canada. Ph. On the rocky banks of the Colnmbia Biver, N. W. America, in the driest places,
where no other tree can live. Doughs.
The edition from which I quote is that of “ Philadelphia, 1819.”
O rd. LX X X V III. GARRY ACE.ZE. Lindl.
1. GARRYA. Lindl.
Dioica.—M asc. Perianth, tetraphyllum. Siam. 4. F<em. Perianth, superum bidenta-
tum. Ovarium 1-loculare; stylis duobus setaceis; ovulis duobus ab apice funiculorum
totidem pendulis. Pericarpium baccatum, indehiscens, dispermiim. Embryo minimus
in basi albuminis carnosi.—Frutex (Boreali-Americana, ora occidentali). Flores intra
bracteas connatas, in spicis amentaceis pendulis dispositi. Lindl. Bot. Beg. p. 1686.
1. Garrya ellipticg. Dougl. Herb. Lindl. 1. c. t. 1686.
H ab . Plentiful on the shore, in'rocky situations, on the south side of the Columbia, near its confluence
with the sea. Douglas.—This fine plant was first detected by Mr Menzies in California, whence also Mr
Douglas sent it, in his second and last expedition. It forms a handsome hardy evergreen shrub in the garden
of the Horticultural Society at Chiswick. Its wood exhibits no concentric circles or dotted vessels. The
flowers are in long catkins, subtended by large connate bracteas.—See Dr Lindley’s description above quoted
for further particulars relative to its structure.
Ord; L X X X IX . S A U R U R E ^ . Rich.
1. SAURURUS. L.
1. S. cernuus. L .—Ph. Am. 1. p. 252.
H ab . Canada. Ph.
O rd. XC . JU G L A N D IN E ^. DC.
1. JUGLANS. L. Nutt.
1. J. cinerea. L .—Ph. Am. 2. p. 636. Mich. N. Am. Sylv. 1. p. 160. t. 31. (J. cathar-
tica). Bigel. Med. Bot. t. 32.
H ab. Canada. Ph. Mrs Sheppard.—This is the Butter-nut and. Oil-nut of the Americans, and is said
to be nearly allied to J. nigra, (the Black Wallnut): “ but the fruit is oblong, with a protuberant summit,
and the nut much moTe deeply and irregularly sculptured.”
2. CARYA. Nutt.
1. C. alba (N utt.); foliolis 5-7 longe petiolatis oblongo-lanceolatis acuminatis acute
serratis subtus villosis terminali sessili, amends filiformibus glabris, fructu depresso-glo-
boso, nuce compressa obliqua.— Juglans alba. Mich. Am.—Ph. Am. 2. p. 637.—J. squamosa.
Mich. N. Am. Sylv. l.p . 181. t. 36.
H a b . Canada. D r Beck.—Shell or Shag-bark Hickory. “ A very large and valuable tree, with the bark
separating in large flat scales or plates. Nut with a thinner shell than that of most other species, and of
fine flavour. Pericarps thin, globose, depressed at the summit. Timber much prized in consequence of the
fineness of its grain and elasticity of the fibre.” Beck.