150 PENTANDEIA DIGYNIA. [CL. V. 



white. Perennial : flowers in June and July : grows in rivers and 

 ditches: frequent. Eng. Bot. vol. x. pi. 684. Eng. Fl. vol. ii. p. 71. 



446. 

 66. CRITH'MUM. SAMPHIRE. 



Flowers all regular, perfect and fertile. Calyx superior, of 

 five small, broad, acute, inflected, permanent leaves. Petals five, 

 equal, elliptical, incurved, broad at the base. Filaments thread- 

 shaped, spreading, as long as the corolla ; anthers roundish. 

 Germen elliptical, furrowed. Styles very short and thick, tumid 

 at the base ; stigmas obtuse. Fruit elliptical, crowned by the 

 permanent calyx and styles. Seeds oblong, convex, with a thick 

 leathery coat, each with five ribs ; the interstices narrow, flat. 

 Named from crithe, barley, from the shape of the fruit. 151. 



1. C. maritimwn. Sea- Samphire. Leaflets lance-shaped, fleshy ; 



bracteas egg-shaped. Stems about a foot high, round, leafy: 



leaves twice ternate : flowers white. The whole plant is glaucous, 

 smooth, fleshy, with a salt aromatic flavour, and is used as a pickle. 

 Perennial : flowers in August : grows on rocks by the sea : not 

 unfrequent in England ; rare in Scotland. Eng. Bot. vol. xii. pi. 

 819. Eng. FL vol. ii. p. 73. 447. 



67. SMYB/NIUM. ALEXANDERS. 



Flowers nearly uniform and regular, the innermost barren. 

 Calyx superior, of five very minute, acute, permanent leaves. 

 Petals five, equal, lance-shaped, incurved. Filaments hair-like, 

 as long as the corolla ; anthers roundish. Germen egg-shaped, 

 angular and furrowed. Styles thread-shaped, spreading, tumid, 

 and somewhat depressed at the base ; stigmas simple. Fruit 

 roundish, ribbed, crowned with the styles or their bases. Seeds 

 with three prominent, acute ribs ; the interstices convex. Named 

 from smyrna, myrrh, from the scent of the juice. 152. 



1 . S. Olusdtrum. Alexanders. Stem-leaves ternate, stalked, ser- 

 rate. Hoot fleshy, branching : stem two or three feet high, solid, 



branched : lower leaves twice ternate : flowers small, white, bitter, 

 and aromatic : formerly cultivated for culinary purposes. Biennial : 

 flowers in May: grows in waste ground, about ruins, and on rocks 

 near the sea : frequent. Eng. Bot. vol. iv. pi. 230. Eng. Fl. vol. ii. 

 p. 74. 448. 



68. A'PIUM. WILD-CELERY. 



Flowers uniform, nearly regular, almost all perfect and fertile. 

 Calyx obsolete. Petals five, superior, roundish, with an inflected 

 point, all .nearly equal. Filaments thread-shaped, as long as the 

 corolla ; anthers roundish. Germen nearly globular. Styles 

 thread-shaped, reflected, greatly swelled at the base ; floral recep- 

 tacle round, flattened ; stigmas obtuse. Fruit egg-shaped or 

 round, slightly compressed, crowned with the withered recep- 

 tacle and spreading styles. Seeds egg-shaped, with acute ribs, 

 the interstices flat. Name from the Celtic apon, water. 153. 



1. A. graveolens. Wild celery. Leaflets of the stem-leaves wedge- 

 shaped ; stem furrowed. Stems two feet long, spreading or floating : 



