H ab.- ? [I have not been able to ascertain what specimens in the Collection correspond to this
species; the name having been by some accident omitted by Dr. Lehmann in the list which answered to our
numbers of reference. Ä]
12. E. oliganthum; pusiUum, caulibus simplicissimis apice subunifloris, foliis oppositis
linearibus integerrimis. Mich. Am. v. 1. p . 223. De Cand. Prodr. v. 3. p. 43.
Hab. Hudson’s Bay, near Lake Mistissiny. Michaux.—Dr. Torrey is disposed to refer this to the JE.
squamatum of Nuttall, the latter author to JE. alpinum, which seems the more probable since Michaux
remarks that he has seen the same species from the Pyrenees.
13. E. luteum; caule tetragono pilosiusculo, foliis oppositis serrulatis, pedunculis axil-
laribus alternis elongatis, calycis lobis angustis longitudine petalorum, stylo exserto, stigmate
crasso 4-lobo. DC.—Pursk, Fl. Am. v. 1. p. 259. De Cand. Prodr. v. 3. p. 44. Cham, in
Linncea, v. 2. p. 553.
Hab. North-West coast of America. Pallas, (in Pursh.) Grassy places in the vallies of Unalaschka.
Chamisso.—With this I am unacquainted, but it is described as differing from all the Genus in the yellow
colour of its flowers, which are said to be as large as those of JE. angustifolium.
2. GAURA. linn.
Calyx tubulosus 4-partitus deciduus. Corolla 4-petala. Stamina 8. Nux sub 4-gona
1-4-sperma. Semina nuda.
1. G parviflora; caule herbaceo erecto piloso, foliis oblongis acuminatis remote denticu-
latis margine ciliatis junioribus subvelutinis, spicis elongatis, floribus minutis confertis,
fructibus distantibus tetragonis basi apiceque attenuatis glabriusculis.—Douglas, MSS.
Caulis herbaceus, erectus, 1-H-pedalis, angulatus, simplex, superae ramosus, pubescens, pills copiosis
patentissimis mollibus intermixtis. Folia sessilia, sparsa, oblonga, acuminata, remote denticulate, 2 poll,
longa, margine et ad costam pilis longis ciliata, parallele nervosa, juniora utrinque velutina, adulta glabriuscula.
Spicce terminales, elongate. JRachis infeme velutina, versus apicem sensim magis glabrescens. Flores con-
ferti, minuti, bracteati. Bractece subulate, pilosse, caducas. Calycis tubus pubescens, germine brevior,
cylindricus, apice incrassatus, lacinise lineares glabriusculse. Petala laciniis calycinis breviora, lineari-
spathulata, unguiculata. Stigma 4-lobum. Germen sublineare tetragonum, basi apiceque attenuatum, gla-
briusculum.
Hab. Sandy banks of the Wallawallah River, North-West coast of America. Douglas.
2. G. coccinea ; caulibus herbaceis decumbentibus, foliis lineari-lanceolatis repando-den-
ticulatis canescentibus junioribus integerrimis, spicis laxis floribus alternis, bracteis linearibus
persistentibus, fructibus ellipticis basi teretibus apice tetragonis canescentibus.—Eraser, Cat.
1813. Pursh, FI. Am. v. 2. p . 733. Spreng. Syst. Veget. v. 2. p. 234. De Cand. Prodr. v.
3. p . 45.
Planta tota cinereo-canescens. Folia caulina repando-denticulata, ramulorum integerrima. Flores non
racemosi ut in De Cand. Prodr. et Spreng. Syst. Veget. sed revera spicati in hac et in omnibus speciebus
quas examinavi, in protuberantibus rachidis sessiles. Protuberantice bractea terminate. Petala coccinea,
obovata, basi cuneata, unguiculata, integerrima, venosa. Stigma quadrilobum.
H ab. Plains of the Saskatchawan and Red Rivers. Drummond, Douglas.—[I possess an original specimen
of this from Mr. Bradbury, gathered about Fort Mandan. H.)
3. G. marginata, {Lehm.); caulibus adscendentibus basi suflruticosis, foliis lanceolatis
repando-dentatis subrevolutis utrinque pube adpresso subcandicantibus, floribus in spicis
terminalibus verticillatim congestis, bracteis linearibus deciduis, fructibus candicantibus.
Gaules ex eadem radice plures, basi suflruticosi, adscendentes, teretes, puberuli, apice ramosi. Folia sessilia,
caulina lanceolate, acuta, repando-dentata, margine subrevoluta, utrinque pube adpresso subcandicantia,
ramulorutn linearia, acuta, integerrima. Spica terminalis, elongata. Flores in rachide angulato verticillatim
congesti. Bracteoe deciduæ, lineares, acuminate, longitudine tubi calycis. Càlyx canescens : laciniis linear
ribus tubo brevioribus. Petalà spathulato-obovata, unguiculata, rubra,- longitudine calycis. Stigma 4-lobum.
Germina linearia, tetragona. Fructus —?
H ab. Plains of the Saskatchawan. Drummond.
4. G. glabra, {Lehm.); caulibus adscendentibus basi suflruticosis foliisque auguste lanceolatis
undulatis glaberrimis, spicis elongatis, floribus alternis, bracteis linearibus persistentibus,
germinibus linearibus tetragonis glabris.
Caules suflruticosi, adscendentes, ramosi, teretes, uti tota planta glaberrimi. Folia crassiuscula, uninervia,
avenia, brevissime petiolata, caulina et ramea inferiora sparsa, anguste-lanceolata, undulata, subdentata, 6-10
lineas longa, 2-3 lineas lata, ramea superiora conferta, linearia, subplana. Flores altemi in spica terminali
elongata dispositi. Bracteoe lineares, persistentes, acute, longitudine tubi calycis. Calycis tubus clavatus,
2 lineas longus ; laciniis linearibus tubo longioribus. Petala rubra, spathulata, unguiculata, venosa, longitudine
ladniarum calycis. Stamina erecta, filiformia; antheroe lineares, jam in flore adhuc clauso latere
déhiscentes. Stylus filiformis, erectus : stigmate demum quadrilobo. Germina tetragona, linearia.
Hab. About Carlton-House, on the Saskatchawan. Drummond.
5. G. biennis; caule herbaceo, foliis lanceolato-oblongis acutis denticulatis, floribus
irregularibus, petalis obovatis adscendentibus patulis nudis, genitalibus deflexis, stylo stamini-
bus longiore, fructibus obovato-tetraquetris sessilibus pilosis brevissimis acutis obtusiusculis,
nervis crassis depressis et infeme rugis transversis notatis. DC.—Linn. Sp. PI. p . 493.
Mich. Am. v. 1. p. 226. Curt. Bot. Mag. t. 389. Pursh, El. Am. v. 1. p. 260. Elliott,
Carol, v. 1. p. 446. Torrey, Fl. of Un. St. v. 1. p. 39}. De Cand. Prodr. v. 3. p . 44.
Hab. About Montreal. Mr. Cleghom.
3. OENOTHERA. Linn.
' Calyx tubulosus quadripartites deciduus. Petala 4. Stamina 8, polline viscoso. Capsula
cylindrica vel prismatica 4-locularis 4-valvis. Semina numerosa nuda.
S e c t . I. O n a g r æ . DC.—Stigma quadrifidum. Capsules prismatico-cylindricoe obsolete
tetragonoe, interdum basi, nunquam apice, crassiores.
§. 1.—Calycis tubus elongatus cylindricus apice tantum dilatatus, ladnias et petala super ans.
Stigma luteum, laciniis linearibus.
et. Floribus luteis.
1. OE. biennis ; caule erecto subramoso, foliis radicalibus oblongo-lanceolatis, caulinis
ovato-lanceolatis dentatis glabris s. pubescentibus, petalis obeordatis stamina superantibus,
capsulis subcylindricis basi crassioribus valvis dehiscentibus apice integris vel bifidis.—Linn.
Sp. PI. p. 492. Engl. Bot. t. 1534. Pursh, Fl. Am. v. 1. p . 261. Elliott, Carol, v. l . p.
441. Bigel. Fl. Bost. ed. 2. p. 148. Torrey, Fl. o f Un. St. v. 1. p. 387. De Cand. Prodr.
v. 3. p. 46.—ß. muricata; caule muricato-strigoso, floribus minoribus. OE. muricata.
Murr. Comment. Soc. Gott. 1776. t. 6. p. 24. t. 1. Pursh, Fl. Am. v. 1. p . 261. Elliott,
vol. i. 2 D