bus inferioribus ovatis lanceolatisque, calycis corollam fere asquantis tubo brevissimo, lobis
subulatis, corollae 5-fidae rosese lobis elliptico-oblongis obtusis.— Chironia caiflpanulata.
L. sp. 1. p. 272. Willd f—Ch. gracilis. Mich. Am. 1. 146.—Sabbatia gracilis. Salisb. Paradis.
Londin. t. 32. Pursh, 1. p. 137.—S. campanulata. Torrey.
Hab. Canada. Willd. herb..—The specimens originate probably from Muhlenberg, but lately botanists
seem not to have met with it in British North America. S. paniculata, Ell., is very near, and it differs
especially by a very short calyx and white flowers, both characters of not much value in Sabbatia: besides,
however, the filaments of the latter and the leaves are shorter: the inferior ones more blunt.^
2. S. angularis; eaule tetragono paniculato, ramis oppositis, foliis cordato-ovatis basi
connatis obtusis, calycis tubo brevi, lobis lanceolatis acutis corolla brevioribus, corollae
roseae 5-fidse lobis obovato-ellipticis obtusis.— Chironia angularis. L. sp. 1. 272. Mich. 1.
p. 146.—Sabbatia angularis. Pursh3 1. p. 137.
Hab. Canada. Mr. Goldie.—The leave's are sometimes smaller and longer, as well as the lobes of
the corolla. There occur also white-flowered specimens.
Tribus IV. Menyanthide.®.—JEstivatio corolla induplicativa. Capsula unilocularis.
Corolla apparatu glanduloso instructa, decidua.
8. MENYANTHES. L.
Semina in nervo medio utriusque valvulae 1-serialia. Capsula juxta suturam valvularum
ruptilis.
1. M. trifoliata; foliis ternatis.—L . Sp. PI. 1. p. 208. Engl. Bot. t. 495.
Hab. Canada. Mrs. Percival, Mr. Cleghom, Mr. Sheppard. Newfoundland. Miss Brenton, Dr.
Morrison. Labrador. Miss Brenton. Lake Winnipeg and Saskatchawan. Dr. Richardson. Rocky
Mountains. Mr. Drummond. North West Coast. Dr. Scouler. Sitcha. Mr. Mertens.
9. VILLARSIA. Vent.
Placenta suturales. Capsula 2-valvis, valvis demum bifidis.
1. V. Crista galli (Menz. sub Menyanthide)', scapo elato, foliis late reniformibus crenatis
emarginatis a petiolo distinctis, floribus paucis congestis.—Hook. bot. misc. 1. p. 45. t. 24.
Bongard Veg. de Sitcha. p. 38.
H ab. Port Edgecombe. Mr. Menzies. Sitcha. Mr. Mertens.
2. V. pumila (Dougl. sub Menyanthide) ; scapis humilibus unifloris, foliis elliptico-oblongis
integerrimis obtusis in petiolum attenuatis. (Tab. CLVII. B.)
Rhizoma repens, crassiusculum, radices filiformes tenuissimas simplices deorsum emittens, apice hinc
divisum petiolorumque vaginis alternis tectum. Petioli unciales, erecti, tenues. Folia 1-1£ uncias longa,
semiunciam lata, subrepanda, nervo medio subtus conspicuo cum petiolo confluente. Scapi erecti, tenuis-
simi, 1-2 unciales. “ Flores albi, venis rubris, fimbriis flavis.” Dougl. Calyx ebracteatus, tubum corollae
subaequans, lobis oblongis obtusis tubo calycino duplo longioribus. Corolla rotata, aperta, tubo infundi-
bulari lobis ovalibus duplo brevioribus; faux corollae cum basi loborum flmbriata. Antherce subglobosm,
incumbentes. Ovarium basi glandulis minutis cinctum, pubescentia pilosa undique tectum, ovatum, stylum
aequans; stigmata liriearia, patentia, 2'" longa. Ovula minutissima suturis affixa? Capsula— ?
Hab. Common near springs and on marshy ground • in the Vallies of the Rocky Mountains, between
Kettle Falls and Spokan. Douglas.—Not having seen the fruit, it is still doubtful to me whether this be
really a Villarsia, or perhaps a Menyanthes, as, ia the dried germen it is indeed difficult to make out where
the ovula are attached. But from, the calyx-leaves, as well as from a great analogy of structure with V.
ovata, Vent., it will be more convenient to refer it to this genus.
Tab. CLVII. B.—Fig. 1, Corolla laid open; Jig. 2, Stamen; Jig. B, Calyx and pistil; fig. 4, Germen
laid open%fig. 5, Ovules:—magnified. 10. LIMNANTHEMUM. Gmel.
Placenta suturales. Capsula evalvis, demum maceratione aperta.— Folia natantia.
Petal a fugitiva.
1. L . lacunosum (Vent, sub Villarsia); foliis supra asperiusculis subtus spongioso-asper-
rimis, corolla alba glabra nuda, glandulis epipetalis breviter stipitatis, stylo brevi crasso,
calyce capsulam vix aequante, seminibus muricatis ecarinatis.—Menyanthes trachysperma.
Mich. 1. p. 126? an hujus forma macrophylla ?
Hab. Norway House to Canada. Drummond, Dr. Richardson.—The germination of this plant is
quite analogous to that of Trapa natans, so remarkable on that account. On tne top of each branch there
arise three groups of different organs—viz. on one side, a leaf; on the other, the umbel of flowers ; and
below, a great many thick, short, and simple radicles, each of which is able to produce a, new plant: the
latter organs are, in Trapa, analogous to those which De Candolle took for stipulse, but which Roeper has
declared to be a sort of root—a theory which is fully proved by the present case.
Ord. LX. POLEMONIACEiE. Juss.
1. POLEMONIUM. L.
Cal. 5-fidus, persistens, laciniis acutis. Cor. campanulata rotata, 5-partita, fundo
clausa valvis 5 staminiferis, limbo piano, laciniis rotundatis. Filamenta basi dilatata.
Capsula ovato-trigona, trivalvis. Semina plurima angulosa.
1. P. caruleum; erectum, foliis pinnatis plurifoliolatis, floribus erectis.—L .—a. vulgäre;
caule solitario elato, foliolis majoribus, floribus paniculato-racemosis speciosis. P . caruleum.
Auct.—ß. humile; caule solitario 2-3 unciali ad spithamasam, foliolis minoribus, floribus co-
rymbosis- speciosis. P. caeruleum, nanum. Hook. Spitz. PI. in Linn. Trans, v. 14.— P.
humile. Willd. Herb, ex Ram. et Sch. p. 311. Lindl. Bot. Reg. t. 1304.— P. Richardsoni.
Grah. in Bot. Mag. t. 2800. Hook, et Am . in Bot. o f Beech. Voy. p, 128.—P. speciosum.
Fisch, ms. in Herb. Nostr.—P. villosum, ex Don, in Sw. Br. FI. Gard. t. 266.—P. lanatum.
Fisch, in Herb. Nostr.—P. caeruleum, var. piliferum. Lindl. in Bot. Reg. t. 1303.—P. pul-
chellum. Bunge, in Herb. Nostr. (e mont. Altaic).—P. caeruleum, formas 2, 3, 4, 5, et 6.
Chamisso, in Herb. Nostr.—P. moschatum. Wormsk. in Herb. Nostr.—y. pulcherrimum;
caulibus aggregatis humilibus gracilibus, foliolis parvis, floribus corymbosis duplo triplove
minoribus, laciniis subacutis. P. pulcherrimum. Hook, in Bot. Mag. t. 2979.—P. acuti-
florum. Willd. Herb, ex R. et. S. Syst. Veg. v. 4. p. 792.
cc. Canada {Mr. Sheppard) to the bases of the Ro Hab. cky Mountains {Drummond) and Arctic Coast.