ONAGRARIjE — HALORAGEifc. 
107 
3. Isnardia Linn. 
1. /. palustris (L.) ; st. procumbent rooting glabrous, I. oppo- 
site ovate acute narrowed into a petiole, fl. axillary solitary ses- 
sile, pet. wanting.— E. B. S. 2593. St. 22. 3.— St. G — 8 in. long, 
round, branching, often reddish. Fl. with 2 small bracts at the 
base. Caps, ovate, obtusely quadrangular with the persistent 
calyx spreading horizontally.— Pools and marshes. Buxted, Suss. 
Petcrsfield, Hants. Jersey. A. VI. E. 
4. Circjea Linn. 
1. C. lutetiana (L.) ; I. ovate or slightly cordate below repando- 
denticulate opaque, petioles subterete, bracteoles 0, pet. deeply 
emarginate : lobes broadly obovate, cal. hairy. — E. B. 105G. St. 
23. 1. — Usually pubescent. Pet. as long as the herbaceous 
sepals. Fr. persistent. — Woods and hedge-banks. P. VI. — 
VIII. Enchanter's Nightshade. 
2. C. alpina (L.) ; I. cordate acuminate repando-dentate shining, 
petioles fiat with membranous wings, bracteoles setaceous, pet. 
bifid : lobes oblong, cal. glabrous. — E. B. 1057. St. 23. 2. — Usu- 
ally glabrous. Pet. shorter than the membranous sepals. Fr. 
soon falling. Bracteoles deciduous. — /3. intermedia (DC.) ; fl. 
larger, sep. less membranous equalling the petals. Whole plant 
much larger. C. intermedia (Ehrh.) Koch. Woods and thickets 
in mountainous districts. P. VII. VIII. 
Order XXXI. HALORAGEiE. 
Cal. adnate with the ovary, limb minute. Pet. minute, from 
the throat of the calyx or 0. Stam. 1 — 8 inserted with the 
petals. Ovary of 1 or more cells. Style 0. Stigmas equal in 
number to the cells. Fruit dry, not bursting, usually crowned 
with the rim of the calyx. Seed pendulous with a small quan- 
tity of albumen. 
1. Myriophyllum. Monoecious. Cal. 4-parted. Pet. 4, 
fugitive, longer than the calyx in the male, small and re- 
flexed or 0 in the female. Stam. 8. Styles 4, villose. Fr. 
tetragonal, separable into 4 hard nuts. 
2. Hippuris. Calyx-limb very minute, obsoletely 2-lobed. 
Pet. 0. Stam. 1. Style filiform, lying in a channel of the 
anther. Stigma simple, acute. Fruit nucumentaceous, 
1-celled. 
3. Callitriche. Fl. without cal. and cor., usually with' 2 
bracts at the base. Stam. 1. Ovaries 2, each of 2 lobes 
and imperfectly 2-celled. Styles 2, subulate. Fr. dry, 
separating into 4 indehiscent carpels. — Kiitzig figures and 
