30. HALORAGACEJ2. 147 



emargmate, lobes broadly obovate, cal. hairy, ovary 2-celled, fr. 

 broadly obovate. E. B. 1056. Si,. 23. 1. Pet. as long as the 

 herbaceous sepals, broad below. Fr. persistent. Woods and 

 hedge-banks. P. VI. VIII. Enchanter's Nightshade. E. S. I. 



2. C. alpina (L.) ; /. cordate acuminate repand-dentate shi- 

 ning, petioles flat with membranous wings, bracteoles setaceous, 

 pet. bifid, lobes oblong, cal. glabrous, ovary 1-celled. E. B. 

 1057. St. 23. 2. Usually glabrous. Pet* shorter than the 

 membranous sepals, narrow below, Fr. soon falling. Bracteoles 

 deciduous. /3. C. intermedia (Ehrh.) ; fl. larger, sep. less mem- 

 branous equalling the petals. Whole plant much larger. 

 Woods aud thickets in hilly districts. P. VII. VIII. E. S. I. 



Order XXX. HALORAGACE^E. 



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

 the throat of the calyx. Stam. 1 8, inserted with the petals. 

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

 Fr. dry, not bursting, usually crowned with rim of cal} r x. Seeds 

 pendulous; albumen fleshy. Stip. 0. 



1. MYRIOPHYLLUM. Monoscious. Cal. 4-parted. Pet. 4, 

 soon falling, exceeding the calyx in the male, small and 

 reflexed or 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. Stigma simple, acute. 

 Fruit a 1-celled nut. 



1. MYRIOPHYL'LUM Lmn. Water-Milfoil. 



1. M. verticilldtum (L.) ; fl. all axillary wkorled, bracts pin- 

 natifid. E. B. 218. L. whorled, pinnatifidly divided into se- 

 taceous segments. Bracts more or less longer than the flowers, 

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

 rare. P. VII. VIII. E. I. 



2. M. spicdtum (L.) ; fl. whorled forming a leaflets spike, 

 bracts small entire, spike erect when in bud. E B. 83. L. 4 

 in a whorl, submersed. Lower bracts often pectinate. Ponds 

 and ditches. P. VI. VII. E. S. I. 



3. M. alterniflorum (DC.) ; sterile fl. alternate about 6 form- 

 ing a leafless spike, spike nodding when in bud afterwards erect, 

 fertile fl. about 3 together in axillary whorls at the base of the 



H 2 



