p. 438. t. 1. f . 4.—y. Americana, caule humili fastigiato-ramosissimo, ramis 1-3-floris, foliis
oblongo-linearibus obtusis,'imis rosulatis.
Hab. Between Cumberland House and Hudson’s Bay. Drummond. Kotzebue Sound. Captain
Beechey. Eschscholtz Sound. Mr. Von Chamisso; y. Labrador. Dr. Morison.—The variety ß. grows in
the Altai. See an account of the confusion of synonyms of this species in Chamisso and Schlechtendal
(Lintuea 1. p. 188.) where they have stated all points with their usual exactness.—The SwertieB of Mr.
Pursh are quite doubtful; his Swertia pusilla is certainly Sw. Stelleriana, Cham. Schlecht.—another species
of Pleurogyne, which I do not consider specifically distinct from Sw. Carinthiaca, Wulf; Mr. Pursh
states that he has seen specimens of it from Labrador in the Banksian herbarium, but as the variety y. of
PI. rotata is indeed very similar to it, I did not deem it convenient to follow his statement, not having seen
specimens from that country. There are specimens of our plant scarcely an inch high, the sepala being
sometimes larger than in the common form; Pleurogyne Stelleriana differs from thera only by its blunt
ovarium, broader leaves, shorter sepala, and the insertion of the seeds being analogous to Gentiana.
8. SWERTIA. L.
Fovea epipetalse glanduliferae, fimbriis cinctas. Stigma terminale, ovario impositum,
continuum, reniforme. Capsula unilocularis, seminibus indefinitis valvulis affixis. Corolla
rotata pentamera absque corona.
1. Sw. perennis (L.); caule basi ascendente, petalis elliptico-oblongis coriaceis sepala
lanceolata duplo superantibus, foveis binis, fimbriarum cristis distinctis, seminibus alatis.—
L . Sp. PI. 1. p. 328. Engl. Bot. t. 1441. Jacq. Austr. 3. t. 243.—ß. obtusa; petalis lati-
oribus obtusioribus, foliis radicalibus obtusioribus, caulinis plerisque alternis.
Hab. ß. N.W. Coast. Mr. Menzies.—There is no difference from the Altaic form. I have examined
the same variety collected at Königsberg, and its characters are not constant.—Swertia fastigiata, Pursh,
may be another species of this genus: it seems, however, more probable that it is a Frasera, as Mr Pursh
refers the genus to Tetrandria.
4. FRASERA. Walt.
Fovea epipetalae glanduliferae fimbriis cinctse. Stigmata distincta, stylo imposita. Capsula
unilocularis, compressa, seminibus subdefinitis magnis alatis, valvularum suturse affixis.
Corolla rotata decidua tetramera.
1. F. Carolinensis (Walt.); caule erecto tereti glabro, foliis oppositis verticillatisque ob-
longo-lanceolatis, racemo elongato densifloro, calyce corolla longiore, fovea orbiculari soli-
taria.— Walt. Car. p. 87. Torrey, p. 187.— F. Walteri. Mich. Am. v. I. p. 97. Pursh, v.
1. p. 101. Ell. Car. v. 1. p. 205.—F. verticillata. Mühl. Cat.
H ab. Shores of the Columbia. Douglas.—[Hook.]
2. F. speciosa (Dougl. ms.); caule erecto tereti sulcato glabro, foliis quaternis oblongo-
linearibus acutiusculis, racemo elongato densifloro, calyce corollam aequante, foveis elliptico
oblongis binis. (Tab. CLIII.)
Radix perennis, pollicem crassa, apice . comosa, etiam foliorum vaginis tecta, partim emortuorum ni-
grescentibus. Caulis strictus plurimum orgyarum, inferne digitum crassus, dense foliosus, simplex, superne
in racemum pedälem abiens, (siccus cum tota planta flavidus.) Intemodia caulis 2-3 uncialia, axis racemf
1 ^-uncialia. Folia radicalia semipedalia, unciam dimidiam lata, in latum petiolum attenuata, acuminata,
acutiuscula, 7-9 nervia, glabra, caulina quaterna, connato-vaginantia, 4 uncias longa, floralia sensim minora,
summa sesquiuncialia. Inflorescentia racemosa, verticillastris distinctis composita: pedunculi communes
quaterni, axillares, unciales, apice cyma umbellseformi bibracteata terminati, flore centrali longius
pedicellato iuternodium axis superante: eodem rnodo caulis summus terminatur, pedicello ultimo 1^-2-
unciali, ebracteato. Sepala 4 linearia, acuminata, obtusiuscula, vix basi juncta, 9'" longa. Petala oblongo-
elliptica, obtusa, albida, apice punctata, erecta, basi barbata, fimbriarum cristis foveas cingentibus longis
pectinatis. Filamenta basi in annulum brevem connexa et abrupte arcuato-dilatata, demum connectivi
apici inserta. Anther a introrsse, loculis oblongis connectivo duplo longioribus, obcordatse. Ovarium ovale
stylum tenue superans, stigmate breviter bilobo. Capsula— ?
Hab. On the low hills near Spokan and Salmon Rivers and subalpine parts of the Blue Mountains,
near the Kooskooska River, N. W.C. Douglas.—[This is quite distinct from the preceding, much larger in
every part, with longer petals and constantly 2 oblong fovese upon each of them.—Hook.]
Tab. CLIII.—Fig. 1, Flower; 2, Petal:—magnified.
3. Frasera albicaulis (Dougl. ms. sub Swertia)’, caule ascendente tereti pilis albidis
brevissimis scabfido, foliis oppositis' liriearibus obtusis, racemo densifloro, calyce corollam
sequante, fovea neari unica. (Tab. CLIV.)
Radix perennis, foliorum emarcidorum vaginis tecta. Caulis ex basi ascendente stricte erectus, pedalis,
simplex, foliis paucis et apice racemo denso instructus. Intemodia 4-8-uncialia, prater infiorescentiam
plerumque in toto caule bina. Folia elongato-linearia, nervosa, pilis quam in caule brevioribus densiori-
busque subalbescentia, alte connato-vaginantia, radicalia duo 3-4-uncialia, 3—4"' lata, caulina 3-uncialia
patula, floralia minora, paucissima ex inflorescentia exserta. Inflorescentia racemiformis, ex verticillastris
2—4 approximatis cymaque densa umbellseformi terminali constituta, accedente hinc verticillastro in
sequentibus axillis, 4 uncias remotis; pedunculi vertieillastrorum communes, plerumque in utraque axilla
bini, alter semiuncialis densa umbellula terminatus, alter minor pauciflorus: pedicellis brevibus confertis,
centrali longiori. Sepala linearia, acuminata,sublibera. Petala 3-4"' longa, cserulea, oblongo-lanceolata,
acuminata, uninervia, fovea dimidium petalum aequante, crista fimbriarum brevi ad basin petali products.
Filamenta tenuia; anther<b ad indolem pracedentis speciei. Ovarium oblongo-ellipticum, apice attenua-
tum, stylum tenuem sequans, stigmate breviter bilobo. Ovula oblonga, alata, pauca, (suturis affixa.) Caps.?
H ab. In the Mountain Vallies between Spokan and Kettle Falls, in moist soil. Mr. Douglas.
Tab. CLIV.—Fig. 1, Flower;,/?«/. 2, Petal;./?«/. 3, Stamen; j?^. 4, Pistil:—magnified.
5. HALENIA. Borhh.
Petala basi calcarata, glandulis fundo calcarum impositis. Stigmata terminalia. Capsula
unilocularis, seminibus indefinitis suturis valvularum affixis. Corolla breviter cam-
panulata.
1. H. deflexa (Sm. sub Swertia); caule erecto folioso, foliis 3-5 nerviis, radicalibus
oblongo-spathulatis in petiolum seque longum attenuatis caulinis oblongo-lanceolatis acutis
subsessilibus, calcaribus cylindricis obtusis curvo-descendentibus corolla duplo brevioribus.
(Tab. CLV.)—Swertia corniculata. Mich. Am. 1. p. 97.—Sw. Michauxiana. R. S. 6. p.
130.—Sw. Americana. Spreng. Syst. 1. p. 861.
Hab.' Spencer Wood, Canada. Mrs. Percival, Mr. Sheppard. Norway House to Canada. Dr. Richardson,
Drummond. Lake Huron. Dr. Todd. Rocky Mountains. Drummond.—This species is very
nearly allied to H. Sibirica, Borkh.; and since both vary much in the form of their leaves as well as in