30. HAlORAGACm. 133 



ted, Stiss. Petersiield and BrockenhaTst, Hants; Jersey. A. 

 VI. £. 



4. Cerc^'a lAim. 



1. C. hitelidaa (L.) ; I. ovate or sligMy cordate below repand- 

 denticulate opaque, petioles sMerete, bracieoles 0, pet. deeply 

 emai|^ate, lobes broadly obovate, cal.; hairy, ovary 2-C6lled, fir. 

 broadly obovate. — St. 23. L — Pet. as long as the herbaceous 

 sepals, broad below. Fr. persistent. — ^'oods and hedge-banks. 

 P. VI.— Vm. Enchcader's Nightshade. E. S. I. 



2. C. alpina (L.) ; I. cordate acuniinate repand-dentate shi- 

 ning petioles fiat with membranous wings, bracteoles setaceoiig, 

 pet. bifid, lobes oblong, cal. glabrous, ovary l-ceUed. — E. B. 1057. 

 >S?. 23. 2. ^Usually glabrous. Pet. shorter than the membra- 

 nous sepals, narrow below. Fr. soon falling. Bracteoles deci- 

 duous.^— /8. C. intermedia (Ehrh.) ; fl. larger, sep. less membra- 

 nous equalling the petals. TMiole plant much larger. \Voods 

 and thickets in mountainous districts. P. YII. VIlI. E. S. I. 



Order XXX. HALOEAGACEiE. 



. Cal. adnate with the ovary, limb minute. Pet. minute, from 

 the throat of the caiyx. Stam. 1 — 8, inserted with the petals. 

 Ovary of 1 or more cells. Styles equal in number to the cells. 

 Fruit dry, not bursting, usually crowned with the rim of the 

 calyx. Seeds pendulous, with a small quantity of albumen. 



1. MTHiopHTLLrM. Mouoecious. Osd. 4-parted. Pet. 4, 

 soon falling, exceeding the calyx in ffie m^e, small and re- 

 flexed or in the female. Stam. 8. Styles 4, vUlose. Fr. 

 tetragonal, separable into 4 hard nuts. — G. F. G. Monochl. 3. 



2. HxppuHis. Calyx-limb very minute, obsoletely 2-lobed. 

 Pet. 0. Stam. 1. Style filiform. Stigma simple, acute. 

 Fruit a 1-ceUed nut.^^. F. G. Monochl. 2. 



1. Mybiophxi'luk iijm. Water Milfoil, 



1. M. verticiUdtum (L.) ; fl. all aviOary whorled, bracts pin- 

 natifid. — ^L. whorled, pinnatifidly divided into setaceous seg- 

 ments. Bracts more or less longer than the floWers, pinnatifid 

 or (M. pectinatum DC.) pectinate. — Ponds and ditches, rare. 



p.mvm. ' E.I, 



3. M. spicdtum (L.) ; fi. whorled forming a lectfless qjt'^e, 

 bracts small entire, spiie erect when m bud. — L. 4 in a whorl. 



