subcequalia aut longiora. Flores albi.—Ambigit inter Peucedaneas et Seselineas; ad
priores mericarpiis alatis, ad posteriores mericarpiis magis convexis accedens. DC.
1. C. Fischerii—“ Wimm. et-Grab. ex FI. 1828. App. p. 215.” De Cand. Prodr. v. 4. p.
164. Hook, et Am. in Bot. o f Beech. Voy. v. 1. p. 124.—“ C. Tataricum. Hoffm.”—
“ Ligusticum Gmelini. Cham, et Schlecht. in Linncea, 1826. p. 394. Gmel. FI. Sib. v. 1.
p . 195. t. 44.”
H ab. Arctic Sea-coast, between the Coppermine and Mackenzie Rivers. -Dr. Richardson. Labrador.
Dr. Morrison. Straits of de Fuca, on the North-West coast. Dr. Scouler. Kotzebue’s Sound. Messrs.
Lay and-CoUie in Capt. JBeechey’s Voyage.
Trib. V. Angeliceje. Fructus a dorso mericarpiorum compressus, raphe subcentrali,
marginibus mericarpiorum in alam (ideo duplicem) expansis. DC.
17. SELINUM. Hoffm.
Calycis margo obsoletus. Petala obovata eraarginata. Fructus a dorso compressus,
"raphe centrali utrinque bialatus. Mericarpia jugis 5 membranaceo-alatis, ala jugorum
lateralium duplo latiore. Vallecula 1-vittatae, exteriores ssepe 2-vittatas. Commissura
bivittata. Carpophorum bipartitum.—Herbge glabra perennes. Folia ternato-decomposita,
segmentis pinnatifidis. Umbelhe composites. Involucrum oligophyllum ; involucella poly-
phylla. Flores albi. DC.
1. S. terebinthinum; ubique glabra, foliis decomposito-pinnatifidis rigidis glaucis laciniis
brevibus linearibus acutis, pedunculis elongatis, involucre nullo, involucelli foliolis lineari-
bus brevibus, mericarpiis singulis alis 5 latissimis undulatis. (T ab. XCV.)—Laserpitium
terebinthinum. Dougl. MSS. in Herb. Hort. Soc. Bond.
“ Radix crassa/fusiformis, gummum terebinthinum copiosum viscidum stillans.” (Dougl?) Caulis erectus
brevis, firmus, teres, vix ramosus. Folia petiolata, sublonge vaginantia, decomposito-pinnatifida, rigida, glauca,
laciniis lineam seu sesquilineam longis, acutis, rachide petioloque teretibus striatis. Pedunculi (fructiferi)
elongati, crassi, folia excedentes. Umbella composita, radiis valde insequalibus. Involucrum nullum.
Involucellum parvum, Toliolis linearibus. Flores specimine meo absunt. Pedicelli plurimi, abortivi.
Calycis dentes subfoliacei, decidui. Fructus majusculus, ovalis, compressus. Mericarpia 5-alata, alis latissimis
membranaceis undulato-crispatis. Vittce numerosae.
H ab. Common on the sandy grounds of the Wallawallah River, North-Westcoast of America. Douglas.
_Of the GenuS'of this remarkable plant, I am very doubtful. I possess only one specimen, and that is in
fruit: but I do not find (that this fruit corresponds accurately with any described Genus.
T ab. XCV. S. terebinthinum. Fig. 1, Involucellum; fig. 2, Young fruit; fig. 3, Mature -fruit; fig. 4,
Mericarps separating from the carpopodium; fig. 5, Section of a mericarp -.—more or less magnified.
18. ANGELICA. Hoffm.
Calycis margo obsoletus. Petala lanceolata integra acuminata, acumine recto vel
incurvato. Fructus a dorso compressus, raphe centrali utrinque bialatus. Mericarpia
jugis tribus dorsalibus filiformibus elevatis, 2 lateralibus in alam membranaceam multo aut
paulo latiorem dilatatis. Vallecula 1-vittatas. Semen subsemiteres. Carpophorum bipartitum
liberumBHerbee perennes biennesve. Folia bipinnatisecta. 'Umbellas terminates.
Involucrum nullum aut oligopyhllum, partiale polyphyllum. Flores albi. DC.
1. A. lucida; caule tereti glabro, foliis bipinnatisectis, segmentis æqualibus ovatis
inciso-serratis, vaginis dilatatis, involucre involuGellisque 5-phyllis. DC.-—Linn. Sp. PI. p.
360. Jacq. Vind. v. 3. p. 24. Pursh, Fl. Am. v. 1. p. 193. Elliott, Carol, v. 1. p . 353.
Torrey, FI. o f Un. St. v. 1. p. 316. De Cand. Prodr. v. 4. p. 168.
Hab. Canada. Pursh.
2. A. triquinata; caule tereti superne pubescente, foliis bipinnatiseetis, segmentis ramorum
petioli inferioribus trisectis, omnibus ovalibus utrinque acuminatis argute serratis, umbella
florente pubescenti-velutina. DC.—Mich. Am. v. 1. p. 167. Pursh, Fl. Am. v. 1. p. 193.
Elliott, Carol, v. 1. p. 352. Torrey, FI. o f Un. St. v. 1. p. 315. De Cand. Prodr. v. 4. p.
168.—Pastinaca triquinata. Spreng. Sp. Umb. p. 68. t. 6. f . 2.—Ferula villosa. Walt.
Carol, p. 115. Pursh, Fl. Am. v. 1. p. 192. (excl. syn. Cicutæ venenatæ, ex Torrey.)
Hab. Canada. Michaux. Pursh.
3. A. atro-purpurea ; caule lævi colorato, foliis bipinnatisectis, segmentis ovatis acutis
inciso-serratis sublobatis terminalibus confluentibus, petiolis late dilatatis, ramis et umbellis
pubescentibus. DC.—Linn. Sp. PI. p. 360. Pursh, Fl. Am. v. 1. p. 193. Torrey, FI. o f
Un. St. v. 1. p. 316. De Cand. Prodr. v... 4. p. 168.—Angelica triquinata. Bigel. Fl. Bost.
ed. 2..p. 68k.—Archangelica atro-purpurea. Hoffm. Umb. p. 169.
H ab. Canada. Pursh.—I have myself seen no Canadian specimens of any of the three species of this
Genus.
19. ARCHANGELICA. Hoffm.
Calycis margo breve 5-dentatus. Petala elliptica integra acuminata, acumine incurvato.
Fructus a dorso subcompressus, raphe subcentrali, utrinque bialatus. Mericarpia jugis
crassiusculis carinatis, 3 dorsalibus elevatis, 2. lateralibus in alam duplo latiorem dilatatis.
Semen tegument© non adhærens. Carpophorum bipartitum.—Herbæ perennes. Folia
pinnatisecta, segmentis late ovatis acutis grosse dentatis terminalibus lobatis. Petioli ampli
vaginanti-saccati. Involucrum univ. subnuUum, partiale dimidiatum polyphyllum. Flores
albi aut subvirescentes. DC.
1, A. officinalis ; caule glabro tereti striato, foliis bipinnati-sectis, segmentis subcordatis
lobatis argute serratis, extremo trilobo, vaginis laxis saccatis, involucelli foliolis umbellulam
æquantibus. DC.—Hoffm. Umbel, v. 1. p. 166. f . tit. 19, 20. De Cand. Prodr. v. 4. p. 169.
—Angelica Archangelica. Linn. Sp. PI. p. 360. Engl. Bot.t. 2561. Cham, et Schlecht. in
Linncea, v. 1. p. 394.
H ab. Unalaschka to the Bay of Eschscholtz. Chamisso.
2. A. Gmelini; caule glabro tereti striato, foliis ternati-sectis, segmentis tripartitis lobis
ovatis serratis basi cuneatis, vaginis mediocribus, involucelli foliolis umbellam florentem
subæquantibus. De Cand. Prodr. v. 4. p. 170.—“ Angelica Gmelini. Wormsk. ex Fisch,
in litt.—Apium ternatum. Pall, in Spreng. Syst. Veget. v. 1. p. 890 ?”
H ab. Kotzebue’s Sound, (according to Dr. Fischer, in De Cand. Prodr.)