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dilatata.
hal/amifera.
candicans.
lavigata.
monilifera*.
DIOECI x l O C T A N D R I A . Populus.
4. P. foliis utrinque glabris acuminatis ferratis deltoidi-,
bus : diametro tranfverfali longiore.
Lombardy, or Po Poplar Tree.
AW. of Italy.
Introd. about 1758, by the Earl of Rochford.
Fl. March and April. H. fe.
5. P. foliis ovatis ferratis fubtus albldis, ftipulis refinofis.
Syß. veget. 889. Pallas roß 67. tab. 4 1 .
Common Tacamahac Poplar Tree.
Nat. of North America and Siberia.
Introd, 1735* Mill. ic. 174* H ?6 l,
Fl. April. H. fe.
6. P. foliis cordatis acuminatis fubtus albidis fubtripli-
nerviis, ftipulis refmofis, ramis teretibus.
Heart-leav’d Tacamahac Poplar Tree.
Nat. of Canada.
Introd. about 1772, by John Hope, M. Q.
Fl. March, H. fe.
7. P, foliis cordatis trinerviis glabris bafi glandulqbs Inae-
qualiter ferratis, petiolis compreffis, ramis teretibus.
Smooth Poplar Tree.
Nat. of North America.
Cult. 1769, by Hugh Duke of Northumberland.
FL March and April. H, fe,
8. P. foliis fubcordatis glabris bafi glandulofis : ferraturis
cartilagineis hamatis pilofiufculis ; nervis patulis,
petiolis compreffis, ramis teretibus.
Canadian Poplar Tfee.
Nat. of Canada.
Jntrod. about 1772, by John Hope, M .D .
Fl. May. H, fe.
9-
DI OE C I A O C T A N D R I A . PopuiuS. 4 0 ?
g. P. foliis cordatis glabris bafi glandulofis remote ere- graca.
natis, petiolis compreffis, ramis teretibus.
Athenian Poplar Tree.
NaU of the lilands of Archipelago.
Cult. 1779, by Hugh Duke of Northumberland.
Fl. March and April. H. fe .
lO. P. foliis cordatis primoribus pubefcentibus bafi eglandulofis,
petiolis fubteretibus, ramis teretibus.
Populus heterophylla, Sp. pl. 1464.
Various-leav’d Poplar Tree.
Nat. of Virginia and New York.
Cult. 1765, by John Fothergiil, M .D .
Fl. April and May. H, fe .
heterophylla.
II. P. foliis cordatis glabris, ramis alato-angulofis.
Populus balfamifera. Mill. did.
Populus magna virginiana, foliis ampliffimis, ramis
nervofis quafi quadrangulis. Duham. arb. 2. p. 178,
Ì - 39- / -9-
Carolina Poplar Tree.
Nat. of Carolina.
Cult. 1759, by Mr. Ph. Miller. Mill. did. edit. 7. «. 6,
Fl. March. H. fe ,
R H O D I O L A . Gen. p l 1124.
M a s c . Cal. 4-partitus. Cor. 4-petala.
F e m . Cal. 4-partitus. Cor. o. Nedaria 4, P iß . 4.
Capf. 4, polyfpermæ.
I . R h o d i o l a . Sp, pl. 1465.
Rofe-root.
Nat. of Britain.
T/, May— — July. H. l f .
D d 4
angulata.
rofeûi
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