CONVOLVULACEÆ. [ Convolvulus.
2 C. grandiflora; foliis lato-lanceolatis nitidis inferioribns saspissime sm-atis glabris su-
perioribus ramisque junioribns pnbescentibus, capitulis viscosis, corolte limbo °bllquo er^
L c u io tnbum subsequaiite.-—Dougl. in Bet. Beg. t. 1174. Hook. Bot. Mag. t. 2894.
Benth. 1. c. _ (9H M | B B S S 2 S „ __ H ab. Columbia River, N.W. America, from the source in the Rocky Mountains to the mouth, ouglas,
Dr. Scouler.
3 C linearis; foliis lineari-lanceolatis lato-lanceolatisve opacis plermnque glabris, ramis
superioribus patentissimis pnbescentibus, corolla, limbo patente tubo gracil.mo triple
breviore.— Nutt. Gen. v. 1. p. 126. Dougl. in Bot. Beg. t. 1166. Hook. Bot. Mag. t. 2893.
Benth.l.c. H ab From the Saskatchewan to Fort Franklin and the Rocky Mountains. Dr Kckardsm, Bnnn-
moml. From Lake Winipeg, across the Rocky Mountains, to Mcnaics' Island m the Columbia, thirty miles
from the Pacific. Drummond, Douglas, Scouler.
4 C. gracilis; glanduloso-pubescens, canle valde ramoso, foliis linenri-oblongis obtusis
inferioribns oppositis, calycis 5-partiti laciniis longe subulatis tnbum corolla,, aquantibns.
Dougl. ms.—Benth. 1. c.-G ilia gracilis. Hook. Bot. Mag. t. 2924— P. hum,l,or; folns in-
ferioribus latioribus.— Collomia humilis and C. bellidifolia. Dougl. ms.
HA,. N.W. America. Yallies o f the Mountains near the Kettle Falls, and * Fort VancouTer, and at
the Multnomack. Douglas.
Okd. LX I. DIAPENSIACEÆ. Lindl.
1. DIAPENSIA. L.
Cal. 6-partitus, 3-bracteatns- Cor. 1-petala, regnlaris, æstivatione imbricata. Stani. 5
æqualia, filamentis dilatatis ad summum tubi corollæ insertis, limbi lacimis alterms; antheris
9docularibus transversim dehiscentibus ecalcaratis. Stigma sessile. Capsula caitdaginea,
3-locularis, infra medium trivalyis, medio placentifera, dissepiment!* e medio valvarum.
Semina plurima minuta, areolata— Suffiutices arctici, humiles, coespitos,, prostrat,. Folia
parva imbricata sempervirentia.
1. D. Lapponica. L .-T orreg, Fl. v. 1. p. 231. Hook, in Pang's 2d. Voy. A p p ..-D.
obtusifolia. Salisb. Parad. Land. t. 104. Pursh, Am. v. 1. p. 1 « .
H a, Labrador Br.Morison, Müs Brenton. Whale Island, Arctic America. Capta,siSir E .Parry.
Ord, LX II. CONVOLVULACEÆ. Juss.
1. CONVOLVULUS. Jacg. Br.
Cat. 5-partitus, nudus, v. bracteis 2 minoribus imbricatis. Corolla campanulata, 5-
Cuscuta.] CONVOLVULACEÆ. 77
plicata. Stamina limbo breviora. Ovarium 2-loculare (raro 3-loculare,?) loculis disper-
mis. Stylus indivisus. Stigmata 2, filiformia. Capsula yalrata.— Herbse (raro frutices)
volubiles v. prostrates, soepius lactescentes. Br.
1. C. arvensis; canle angulato-striato, foliis sagittatis subauriculatis, pedunculis sæpius
unifloris àpice bibracteatis, sepalis ovato-rotundatis, corolla alba aut rosea. Chois.—L .—
Pursh, Am. v. 1. p. 144. Torrey, v. l.p . 224.
Hab. Canada. Mrs. Perdval, Lady Dalhousie.
2. C. panduratus; volubilis pubescens, foliis lato- cordatis integris lobatisve pandurifor-
raibus, pedunculis longis, flpribus fasciculatis, calycibus glabris muticis, corôllis tubulato-
campanulatis. Mich. Am. v. l.p . 138. Ph.Am .v. l.p . 144. Elliott, v. l.p . 254. Torrey,
FI. v. l.p . 225. ,
Hab. Canada. Pursh.
2. CALYSTEGIA. Br.
Cal. 5-partitus, bracteis duabus foliaceis inclusus. Cor. campanulata, 5-plicata. Stam.
subæqualia limbo breviora. Ovarium semibiloculare, 4-spermum. Stylus indivisus. Stigmata
2 obtusa (teretia v. globosa). Capsula unilocularis.—Herbæ lactescentes, glabroe, volumes
v. prostrates {extra tropicum provenientes). Pedunculi solitarii unifiori. Br.
1. C. sepium ; foliis sagittatis acutissimis posticis obtusis truncatisve integris, bracteis
acutis calyce longioribus dimidio corollæ brevioribus, pedunculo angulato petiolum super-
ante. Br.—Ph. v. l.p . 142.—Convolvulus sepium. L .— Torrey, v. 1. p. 225.—C. repens.
L .—Mich.—Ell.
Hab. Canada to the Saskatchawan, Pursh, Dr. Todd, Dr. Richardson; and to the Rocky Mountains.
Drummond. Shores and Islands of the Columbia. Dr. Scouler, Dr. Gairdner.
2. C. spithamesus; pubescenti-tomentosa, caule erecto, foliis oblongo-ovatis basi cordatis,
pedunculis unifloris folio longioribus, bracteis ovatis acutis, laciniis calycinis lanceolatis.—
Ph. Am. V. 1. p. 148. Hook. Ex. Fl. v, 1. t. 97.— C. tomentosa. Ph. 1. c.— Convolvulus
spithamæus. L .—Elliott, v. 1. p. 251. Torrey, F l v. 1. p. 225.—C. stans. Mx.
Hab. Canada to the Saskatchawan. Mr. Cleghom, Mrs. Perdval, Dr. Richardson, Drummond.
3. ÇÜSCUTA. L.
Cal. raro 4-fidus. Cor. globoso-urceolata, limbo 5-fido, marcescens. Ovarium 2-locu-
lare, loculis dispermis. Caps, bilocularis, circumscissa.—Herbæ aphylles, volubiles, para-
sitices. Flores aggregati, subcapitati v. spicati, unibracteati. Squamæ 5, epipetales, infra
fi lamenta, iisdemque opposites, raro déficientes. Br.
1. C. Americana ? floribus pedicellatis globoso-campanulatis 5-fidis, filamentis subulatis,
corollæ laciniis brevioribus infra basin squama fimbriata, stylis gracilibus exsertis.—L .?—gj
Ph.?—Mich.?—Torrey, FI. v. l.p . 289.—C. arvensis. Beyrich, in Herb. Nostr.
Hab. N.W. America. Douglas.—This I believe to be the C. Americana of Dr. Torrey. The flowers
though small, are larger than in our C. Epithymum.