Hab. Canada. Lake Huron. Dr. Todd. About Montreal and Quebec; Mrs. Pereival; Mrs. Sheppard;
Mr. deghom; and as far north as the Saskatchawan. Dr. Richardson; Drummond.
2. O. sfricta; .caule erecto folioso, pedunculis umbelliferis 2-6-floris folii circiter
longitudine, stipulis obsoletis, foliolis obcordatis, petalis integris, stylis staminran interi-
orum longitudine.—Linn. Sp. PL p . 624. Jacq. Ox. t. 80. f . 2. Mich. Am. v. 2. p. 39.
Pursh, FI. Am. v. 1. p . 322. Elliott, Carol, v. 1. p. 525. De CancL Prodr. v. 1. p. 692.
Torrey, FI. o f Un. St. v. 1. p. 462. Bigel. FI. Bost. ed. 2. p . 258.
Hab. Dry soils in upland woods in the interior, west of the Rocky Mountains. Douglas.
* * Acetosellce. DC.
3. O. Acetosella; acaulis, radice dentata repente, foliolis obcordatis puberulis, scapo
folio longiore supra medium bibracteolato, petalis ovalibus obtusis, stylis stam. interiora
asquantibns aut superantibus.—Linn. Sp. PI. p . 700. Engl. Bot. t. 762. Mich. Am. v. 2.
p . 38. Pursh, FL Am, v. 1. p. 322. De Cand. Prodr. v. 1. p. 700. Torrey, FI. o f Un. St.
v. 1. p. 461. BigeL FI. Bost. ed. 2. p. 257.
Hab. Canada. Pursh; Mrs. Sheppard; Mrs. Percival. Lake Huron. Dr. Todd. North-West coast
of America, in woods, frequent. Douglas; Dr. Scouler.—The specimens from the North-West coast have
unusually long and branched subterraneous stems.
4. O. triUiifolium ; acaulis, pedunculis umbelliferis petiolum aequantibus, foliis ternatis
foliolis obcordatis glabris, stylis staminum interiorum longitudine.—O. macrophylla.
Douglas, MSS. in Herb. Sort. Soc'. (non Kunth.)
Hab. ** North-West America, on the summits of the high mountains near the * Grand Rapids' of
the river Columbia; and also in the vallies of the Rocky Mountains, on moist decayed vegetable soil.”
Douglas.—“ Petiole equal in length with the scape, from 6-12 inches high. Leaves glabrous, very large, and,
when the plant is out of flower, they may almost be taken for those of Trillium grandiflorum.” Douglas.
Ord. XXV. RUTACEÆ. Juss.
T rib. D iosmeæ. De Cand.
1. ZANTHOXYLUM. Dumb. et Kunth.
Flores hermaphroditi aut abortu dioici aut monoici. Cal. 3-9-lobus sæpius 4-5-par-
titus. Pet. tôt quot calycis lobi,‘ interdum basi connata aut libéra, abortu sæpe ad
minorem numerum reducta imo interdum solitaria, matura bivalvia 1-3-sperma. Semen
nitidum. (Goertn.)—Frutices arboresve sæpe acvleati. Folia sæpius alterna, sæpe punc-
tato-glandulosa. DÇ.
1. Z. fraxineum ; foliis impari-pinnatis 3—5-jugis, foliolis ovatis obsolète serrulatis basi
æqualibus, petiolis teretibus inermibus, aculeis stipularibus, umbellis axillaribus. DC.—
Willd. Sp. PL v. 4. p . 757. Pursh, Fl. Am. v. 1. p. 210. De Cand. Prodr. v. 1. p. 727.
Bigel. Fl. Bost. ed. 2. p. 376.—Z. ramiflorum. Mich. Am. v. 2. p . 235.
Hab. Canada. Michaux. “ La Grande Chaudière.” Pursh.
2. Z. tricarpum; foliis impari-pinnatis 3-5-jugis, foliolis petiolulatis oblongo-ovalibus
acuminatis serrulatis basi obliquiis, petiolis ramisque aculeatis, paniculis terminalibus.
DC.—Mich. Am. v. 2. p . 235. Pursh, FI. Am. v. 1. p. 210. Elliott, Carol, v. 2. p. 600. De
Cand. Prodr. v. 1. p. 726.—Fagara fraxinifolia. Lam.
H ab. Lachine, near Montreal. Mrs. Sheppard.—This was sent to me by Mrs. Sheppard as the Z. fraxineum;
but it has decidedly and strongly aculeated petioles, and quite agrees with Z. tricarpum of Michaux,
which has been only considered a native of Carolina and Georgia.
Subcl. IL C A L Y C IF LO RÆ . DC.
Ord. XXV. CELASTRINEÆ. Br.
T rib. I. Staphyleaceæ. DC.
1. STAPHYXEA. Dim.
Cal. 5-partitus, disco urceolàto basi tectus, lobis oblongis concavis coloratis. Pet. 5
sepalis alterna. Stam. 5 petalis alterna. Ovarium 2-3-lobum. Styli 2-3 interdum
coaliti. Caps. 2-3-locularis, loculis membranaceis intus dehiseentibus oligospermis,
nunc basi nunc per tôtam longitudinem adnexis. Semina ossea subglobosa ad hilum
truncata. Albumen tenue seu 0. Cotyledones carnosæ.—Frutices foliis compositis, impari-
pinnatis trifoliatisve, oppositis {rarissime altemis) ad basin petioli et foliolorum bistipvlatis ;
floribus albis, racemoso-paniculatis. DC.
1. S. trifolia ; foliis 3-foliolatis, foliolis ovatis acuminatis regulariter serratis junioribus
subtus pubescentibus, stylis glabris, capsulis vesicariis.—Linn. Sp. PL p. 286. Mich. Am.
v. 1. p. 184. Elliott, Carol, v. 1. p. 369. Pursh, Fl. Am. v. 1. p . 206. De Cand. Prodr
v. 2. p. 2. Torrey, FI. o f Un. St. v. 1. p . 325. Bigel. FI. Bost. ed. 2. p. 121.
Hab. Canada. Mr. Cleghom.
T r ib . II. E uonymeæ. DC.
f 2. EUONYMUS. Linn.
Cal. 4-6-lobus, planus, basi disco peltato tectus. Pet. 4-6 patentia disco inserta.
Stam. 4-6, glandulis supra discum prominulis inserta, petalis alterna. Stylus 1. Caps.
3-5-locularis, 3-5-angularis, valvis medio septiferis; semina in loculis 1-4, pulpa aut
arillo involuta. Embryo viridis, rectus, in medio albuminis carnosi.—Frutices ramvlis
tetragonis, foliis ovatis sæpius oppositis vix stipulaceis, pedunculis axillaribus. DC.
1. E. atropurpureus ? ramis lævibus, foliis ovatis subacuminatis petiolatis serratis,
pedunculis divaricatis multifloris, “ floribus 4-fidis,” fructibus lævibus.—Jacq. Hort. Find,
v. 2. t. 120. Mich. Am. v. 1. p. 155. Pursh, Fl. Am. v. 1. p. 168. Elliott, Carol, v. 1. p . 293.
Torrey, FI. o f Un. St. v. 1. p . 261.
Hab. Banks of streams about the Columbia. Douglas.—My specimen of this, which is in fruit, seems to
accord with the E. atropurpureus ; which, however I have not seen from the British possessions east of the
Rocky Mountains.
2. E. Americana; ramis lævibus, foliis elliptico-lanceolatis serratis subsessilibus,
pedunculis 1-3-floris, petalis suborbiculatis, Capsulis verrucoso-echinatis.—Linn. Sp. PL
p. 286. Mich. Am. v. 1. p. 155. Elliott, Carol, v. 1. p. 292. Pursh, Fl. Am. v. 1. p . 168.
Torrey, FI. o f Un. St. v. 1. p. 261.