1. P. Lewisii; foliis ovatis.acutis subintegerrimis.margine eiliatis, calycis Winiis acutis,
stylo longitudine staminum 3-fido, stigmatibus tribus. Pursh, FI. Am. v. 1. p. 329. De
Cand. Prodr. v. 3. p. 206.— P. nov. sp. Douglas, MSS.
H ab. Common in open Pine-woods, on the North-West coast of America. Douglas.—The single speci-
men I possess of this plant has the flowers so far advanced, that the stamens and petals have fallen; and the
description given by Pursh of P. Lewisii is so unsatisfactory, that I cannot be sure it is the same. Our
plant has the branches slender, twiggy, brown, spreading horizontally, quite glabrous. The leaves are ovate
or ovato-oblong, acute or acuminate, entire or slightly toothed, three or five nerves arising from very near
the base which is woolly beneath, at the axils of those nerves. Flowers ternate at the extremity, and in
the axils of the upper pair of leaves are two single-flowered pedicels, one in each axil. Calyx-segments ovato-
lanceolate, acuminate, very woolly at the points. Free portion of the germen glabrous ; Style 3- or 4-cleft.
O rd. XXXV. CUCURBITACEiE. Juss.
| SICYOS. Linn.
Flores monoid. <?. Cal. 5-dentatus, dentibus subulatis. Cor. 5-partita. Filavnenta
3 ? (potius 5, triadelpha.) $. Stylus trifidus. Stigma crassiusculum ti’ifidum. Fructus
abortu? monospermus ssepissime spinis obsitus, semine obovato.—Pedunculi masculi et
foeminei scepe ex eadem axilla nascentes. DC.
1. S. angulatus; foliis cordatis angulatis denticulatis scabris lobis acuminatis 3-5, cirrhis
umbellatis, floribus masculis corymboso-capitatis pedunculo communi longo, foemineis
sessilibus glomeratis apice pedimculi, fructibus ovatis spinescentibus tomentosisque, spinis
obscabris, seminibus basi truncatis apice obtusissimis. Linn. Sp. PI. p . 1438. Mich. Am.
v. 2. p. 217. Pursh, FI. Am. v. 2. p. 44. Elliott, Carol, v. 2. p. 663. De Cand. Prodr.
Vi 3.p. 309. Dill. Elth. v . l . t . 59.
H ab. Canada. Michaux. Banks of the Columbia, from its mouth to the Kettle Falls. Dr. Scouler.
Douglas.—The male inflorescence is sometimes in very elongated racemes, as in Dr. Scouler’s specimens,
and the flowers remote.
2. MOMORDICA. Linn.
Flores monoici lutei v. albi, pedunculo filiformi unibracteato (an semper ?) <?. Cal. 5-
fidus, tubo brevissimo. Cor. 5-partita. Stam. triadelpha, antheris connatis. . $. Filamenta
3? (potius 5, triadelpha,) steriha. Stylus 3-fidus. Ovarium triloculare. Fructus ssepe
muricatus (an semper ?) maturus elastice dissiliens. Semina compressa reticulata (an semper?)
DC.
1. M. ? echinata; pomis tetraspermis subrotundis setoso-echinatis, foliis cordatis quinque-
lobo-angulatis acuminatis integerrimis scabris. Muhl. ex Willd. Sp. PI. v. 4. p. 605. Pursh,
FI. Am. v. 2. p. 444. De Cand. Prodr. y . 3. p. 312.—Sicyos lobata. Mick. Am. v. 2.
p. 217.
H ab. Plains of the Red and Assinaboyne Rivers, and banks of the Saskatchawan. Douglas, Dr. Richardson,
Drummond.—If I am correct in referring this to the plant of Willdenow—and it well agrees with
that author’s description, so far as it goes—the segments of the corolla are remarkably long and attenuated,
and the female flowers of rare occurrence. Of the six specimens in the Collection, possessing numerous
racemes, from two to five or six inches long, of male flowers, only one raceme has at its base (as Willdenow
correctly remarks) a solitary female flower. The tube of the calyx is incorporated with the corolla, and the
segments resemble slender and rather long bristles, set on to the corolla, and alternating with its segments.
I have received the same plant from Dr. Torrey, gathered near New York, without a name. The flowers
being in racemes, this plant would, I think, rank more naturally with Sicyos than with Momordica. But
with the fruit I am unacquainted; and it must be confessed that the genera of Cucurbitacece are very imperfectly
defined.
O rd. XXXVI. LOASEA3. Juss.
1. BARTONIA. Nutt, et Pursh.
Calycis tubus cylindraceus arete ovarium vestiens, sed forsan liber; limbus 5-partitus per-
sistens. Petala 10 unguiculata calyce inserta. Stam. innumera (200-250) cum petalis
inserta, iis breviora, filamentis liberis, externis interdum sterilibus, antheris oblongis.
Stylus filiformis striis 3-7 spiralibus notatus et inde stylis 5-7 omnino connexis et spiraliter
tortis constans. Capsula oblonga 1-locul. 3-7-valvis, placentis totidem seminum series
2 gerentibus. Semina compressa numerosa.—Herbas pilis barbatis rigidulis tenacibusque
pvbescentes. Foliaaltema interrupte pinnatifida. Flores terminates solitarii ampli albi sub
vesperem expansi. DC.
1. B. Icevicaulis; _v petalis 5, staminibus 5 petaloideis, bracteis nullis, caule kevissimo,
seminibus alatis. (T ab. LX IX.)—Douglas, MSS. apud Hort. Soc. Lond.
Caulis herbaceus, annuus, erectus, 2-3-pedalis, ramosus, Isevis, albidus, subnitidus. Folia lanceolata,
sinuato-pinnatifida, sessilia; inferiora heviuscula; superiora sensim minora scaberrima. Flores terminates
subcongesti, magni, speciosi, “ nitidi, flavi.” Bractece nullse, nisi folia suprema parva, integerrima. Calycis
segmenta lanceolata-acuminata, longa,.demum reflexa, extus scabra, intus glaberrinia: tubo apice libero.
Petala 5, erecto-patentia, 2^-uncialia, lanceolata, basi. apieeque acuminata. Stamina numerosa, petalis
breviora: filamenta 5 exteriora latiora, subpetaloidea; reliqua filiformia, glabra. Antherce oblongte, bilocu-
lares. Germen inferum, subcampanulato-cylindraceum, asperum, obscure 5-sulcatum. Stylus longitudine
staminum, filiformis, versus apicem obscure 3-lineatus. Stigma obtusum. “ Capsula scabra, glutinosa,
3-valvis. Semina alata, alba.” (Dougl.)
H ab. On the gravelly islands and rocky shores of the Columbia, near the “ Great Falls;" flowering
in June and July. Douglas.—This is a very beautiful addition to the American Flora, scarcely at all inferior
to the B. omata of Pursh and Nuttall, (B. decapetala, Sims in Bot. Mag. 1.1487,) which Mr. Lewis and
Mr. Nuttall found on the borders of the Missouri, and which the latter author has so well described in his
valuable “ Genera of North American Plants.” From it our plant differs remarkably in the absence of
the large, foliaceous, deeply pinnatifid, and laciniated bracteae, in its fewer petals, and winged seeds. Contrary
to the habit of B. omata, this and the following species never expand their blossoms in the evening,
but during the bright sunshine.
Tab. LXIX. Bartonia lsevicaulis. Fig. 1, Lower leaf:—natural size; fig. 2, Stamen; fig. 3, Outer
petaloid stamen ; fig. 4, Calyx and pistil:—magnified.
2. B. parviflora; petalis 5, staminibus 5-7 petaloideis, bracteis nullis, caule scabro,
seminibus alatis.—Douglas, MSS. apud Hort. Soc. Lond.
Hab. Abundant on calcareous rocky situations and micaceous sandy banks of streams, in the interior
parts of the Columbia. Douglas.—The only specimen I have seen of this is in the Herbarium of Professor
Lindley. The flowers are certainly somewhat smaller than in the preceding species, and the stem and