Cuscuta.] CONVOLVULACEiE. 77 



plicata. Stamina limbo breviora. Ovarium 2-loculare (raro 3-Ioculare?) loculis disper- 

 mis. Stylus indivisus. Stigmata 2, filiformia, Capsula valvata. — Herbce {raro frutices) 

 volubiles v, prostratce^ scepius lactescentes, Br, 



1. C. arvensis; caule angulato-striato, foliis sagittatis subauriculatis, pedunculis ssepius 

 unifloris apice bibracteatis, sepalis ovato-rotundatis, corolla alba aut rosea. Chois. — L, — 

 Purshy Am. v. \,p. 14'4. Torrey^ v. \. p, 224. 



Hab, Canada. Mrs. Perczvalj Lady Dalhousie. 



2. C panduratus; volubilis pubescens, foliis lato- cordatis integris lobatisve pandurifor- 

 mibus, pedunculis longis, floribus fasciculatis, calycibus glabris muticis, corollis tubulato- 

 campanulatis. Mich, Am, v» L p. 138. Ph, Am. v, 1. p. 144. Elliott^ v. 1. p, 254. Torreyy 

 FL V, \.p. 225. 



Hab, Canada. Pursh. 



2. CALYSTEGIA. Br. 



Cat. 5-partitus, bracteis duabus foliaceis inclusus. Cor. campanulata, 5-plicata. Stam, 

 subaequalia limbo breviora. Ovarium semibiloculare, 4-spermum. Stylus indivisus. Stig- 

 mata 2 obtusa (teretia v. globosa). Vapsula unilocularis. — Herba^ lactescentes^ glabrce, volu- 

 biles V, prostratm {extra tropicum provenientes) , Pedunculi soUtarii uniflori, Br. 



J. C sepium; foliis sagittatis acutissimis posticis obtusis truncatisve integris, bracteis 

 acutis calyce longioribus dimidio corollas brevioribus, pedunculo angulato petiolum super- 

 ante. Br, — Ph.v. l.j». 142. — Convolvulus sepium. L. — Tbrrey, v. 1. /?. 225. — C. repens. 

 L.—Mich.—EU. 



Hab. Canada to the Saskatchawan, Pursh, Dr. Tot/rf, jDr, iZic^arrfsoft; and to the Rocky Mountains. 

 Drummond. Shores and Islands of the Columbia. Dr. Scouler, Dr. Gairdner. 



2. C spithamcBUs; pubescenti-tomentosa, caule erecto, foliis oblongo-ovatis basi cordatis, 

 pedunculis unifloris folio longioribus, bracteis ovatis acutis, laciniis calycinis lanceolatis.— 

 Ph. Am, V. i.p. 143. Hook. Ex. FL v. I. t. 97.— C. tomentosa. Ph. I. c— Convolvulus 

 spithamseus. L.— Elliott, v. !./>. 251. Torrey, FL v. I, p, 225.— C. stans. Mx. 



Hab. Canada to the Saskatchawan. Mr. Ckghom, Mrs. Percivah Dr. Richardson^ Drummond. 



3. CUSCUTA. L. 



CaL raro 4-fidus. Cor. globoso-urceolata, limbo 5-fido, marcescens. Ovarium 2-locu- 

 lare, loculis dispermis. Caps, bilocularis, circumscissa.— Herbse aphyll<Ey volubiles, para- 

 sitica. Flores aggregati, subcapitati v. spicati, unibracteati. Squamae 5, epipetalm^ infra 

 Jilamenta, iisdemque oppositce, raro dejicientes. Br. 



1. C. Americana? floribus pedicellatis globoso-campanulatis 6-fidis, filamentis subulaiis, 

 coroUae laciniis brevioribus infra basin squama fimbriata, stylis gracilibus exsertis.—i.?— 

 Ph.?—Mich.?—Torrev, FL v. \. p. 289:^C. arvensis. Beyrich, in Herb. Nostr. 



Hab. N.W. America. Douglas.—Thxs I believe to be the C. Americana of Dr. Torrey. Tlie flowere 

 though small, are larger than in our C. Epithymum. 



