Div. 2. Flores plerumque Monoid vel dioid.
O rd. LX X X IV . EMPETRE.®.
1. EMPETRUM. Z.
1. E . nigrum. L .—F. Bot. t. 375. PA. Am. 1. p. 93.
H ab. Near the Sea-coast in Canada. Michaux; at Murray Bay. Mrs Sheppard. Newfoundland. Miss
Brenton. Throughout the woody and barren country, abundant, to the Arctic Sea-shore and Islands.
Dr Richardson. Sir E. Barry.
O rd. LX X X V . EU PHOR BIAC E®. Juss.
1. EUPHORBIA. L.
1. E. hyperidfolia (L .); glabra v. parce pilosa ramosissima erecto-patula dichotoma,
ramis divaricatis, foliis oppositis serratis ovali-oblongis subfalcatis, corymbis foliosis sub-
terminalibus. PA. Am. 2. p. 605. Hook. Ex. FI. t. 36 (caule subsimplici).
H ab. Canada (PA.), to the Saskatchewan. Dr Richardson. Drummond.—These specimens are often
hairy.
2. E. polygonifolia (L .); glaberrima diffusa ramosissima gracilis dichotoma, foliis oppositis
oblongis subfalcatis obtusis integerrimis, floribus subsolitariis axillaribus. Jacq. Coll.
Suppl. t. 13. f. 3. PA. Am. 2. p. 606.
H ab . Canada (PA.), to Carlton House Fort on the Saskatchawan. Drummond. On Menzies* Island,
and at the Grand Rapids of the Columbia, N. W. America. Douglas.
3. E. platyphyUa. L .—E. stricta. E . Bot. t. 333.
H a b . Lake Huron. Dr Todd. Norway House Fort on the Saskatchawan. D r Richardson. Plains
of the Columbia River. Douglas. Probably introduced from Europe.
4. E. obtusata (Ph. Am. 2. p. 606); umbella 3-fida bis dichotoma, involucellis ovatis
obtusiusculis subcordatis, foliis alternis sessilibus spathulatis involucellisque serrulatis
glabris, capsulis muricatis. PA.
H ab . Near Quebec. Mrs Sheppard. Canada. Drummond.—Apparently rare in the British possessions.
Only three specimens were gathered by Mr Drummond. The leaves are truly obovato-cuneate.
5. E . pilosa (L .); umbella 5-radiata tri-deinde biradicellata, foliis serrulatis pilosis,
imis oblongis obtusiusculis, superioribus lanceolatis, involucellis ovatis, capsulis asperis
pilosis. Bdch. Iconogr. Bot. t. 149. PA. Am. 2. p. 605.
H a b . Canada. Goldie. (Probably introduced.)—Pursh, however, gives it as an inhabitant of the mountains
of Maryland and Virginia.
6. -E. corollata. L .—Ph. Am. 2. p. 607. Hook. Bot. Mag. t. 2992.
H a b . Canada. PA.
H
2. CROTON. L .
1. C.9 setigerum; annuum parvum dichotome ramosum pilis stellatis ubique incano-
tomentosum, caule petiolisque setis patentibus hispidissimis, foliis late ovatis obtusis
petiolo brevioribus.
H ab. Plentiful on Menzies’ Island, and on sandy banks of the Columbia upwards. Douglas.—Only one
specimen of this, I regret to say, is in my possession, and it has no more than a few male flowers developed
amongst the small terminal leaves, which seem to form a kind of involucre beneath them. Whole plant
scarcely the height of one’s finger;1 clothed every where, with stellated tomentum; thepetioles, and. stem and
branches, besides, bearing patent bristles or rigid hairs, somewhat bulbous at their base., Leaves in general
nearly an inch long, most crowded at the top of the branches, where the innermost or uppermost are very
small about the flowers.
3. ACALYPHA.~Z.
1. A. Virginica. L .—PA. Am. 1. p. 604.
H ab. Canada (PA.), to the Saskatchawan. Drummond.
Ord. LX X X V I. U R T IC E ® . Juss.
1. URTICA. Z.
1. U. pumila (L .); monoica, foliis oppositis ovatis acuminatis trinerviis serratis, petiolis
inferioribus longitudine folii, floribus triandris capitato-corymbosis petiolo brevioribus.
PA. Am. 1. p. 112.
H a b . Canada. PA.
2. U. wrens. L .—E. Bot. t. 1236. PA. Am. 1. p. 113»
H a b . Canada. PA. Newfoundland. Miss Brenton. (Imported.)
3. U. dioica. L .—E. Bot. t. 1750. PA. Am. 1. p. 113.
H a b . Canada. PA. (Imported.)
4. U. gradlis (Ait.); dioica erecta stricta parce hispida, foliis ovato-lanceolatis sub-
acuminatis grosse subduplicato-serratis trinerviis supra nudiusculis, subtus ad nervos
hispidis, spicis elongatis pinnatim ramosis folio subbrevioribus, floribus glomeratis.
Rich. App. p. 36.—U. procera? Willd.
H ab. From Lake Huron (Dr Todd), to the Saskatchawan, and throughout the woody country, generally,
on the east of the Rocky Mountains, as far as Fort Franklin, on the Mackenzie River. Dr Richardson.
Drummond.
5. U. Canadensis (L.); foliis alternis cordato-ovatis acuminatis penninerviis mem*
branaceis utrinque cauleque hispidis longe petiolatis, paniculis plerumque geminatis
divaricato-ramosissimis petiolo longioribus. PA. Am. 1. p. 114.—-/3. minor. U. divaricata.
L. Ph.
H ab . Canada. (PA.) Lake Huron. Dr Todd.— I cannot distinguish U. divaricata from U. Cana