CL. V.] PENTANDRIA MONOGYNIA. 135 



Seed solitary, oval, pointed at both ends, filling the capsule. 

 Named from illecebra, an enticement. 123. 



1. I. verticilldtum, Whorled Knot-grass. Flowers in whorls, without 



bracteas ; stems procumbent. Leaves small, egg-shaped, acute : 



flowers small, white or reddish. A small plant, with spreading and pro- 

 cumbent stems. Perennial : flowers in July : grows in marshy ground 

 in Cornwall and Devonshire. Eng. Bot. vol. xiii. pi. 895. Eng. Fl. 

 vol. i. p. 336. 378. 



39. GLAUX. SEA MILKWORT. 



Calyx inferior, of one leaf, coloured, bell-shaped, deeply divided 

 into five obtuse, spreading, recurved, permanent segments. Co- 

 rolla none. Filaments awl-shaped, erect, as long as the calyx. 

 Stigma knobbed. Capsule globular, pointed, one-celled, five- 

 valved. Seeds five, roundish, attached to a large, globular, central 

 receptacle, marked with pits. Named from glaucos, grey. 124. 



1. G. maritima. Sea Milkicort. Black Saltwort. Root of long 



fibres : stem from two to eight inches high, erect, branched, smooth : 

 leaves oblong, smooth, fleshy : flowers axillar, solitary, flesh-coloured. 

 Perennial : flowers in June and July : grows on the sea-shore, in muddy 

 places : common. Eng. Bot. vol. i. pi. 13. Eng. Fl. vol. i. p. 337. 379. 



40. THE'SIUM. TOAD-FLAX. 



Calyx superior, of one leaf, internally coloured, divided half 

 way into five spreading segments, permanent. Corolla none. 

 Filaments awl-shaped, erect, short; anthers roundish. Germen 

 roundish, ribbed. Style thread- shaped, as long as the stamens ; 

 stigma cleft. Drupe oblong, angular, dry, leathery, crowned by 

 the closed calyx. Nut roundish. Name doubtful. 125. 



1. T. Hnophy'lUim. Bastard Toad-flax. Cluster branched ; bracteas 

 three together ; leaves lance-shaped, inclining to linear ; tube of the 



calyx very short. Stem spreading, angular, from three to five inches 



high : calyx whitish, irregularly notched between the segments. Pe- 

 rennial : flowers in July : grows in elevated pastures, in England : rare. 

 Eng. Bot. vol. iv. pi. 247. Eng. Fl. vol. i. p. 338. 380. 



41. VIN'CA. PERIWINKLE. 



Calyx inferior, of one leaf, deeply divided into five erect, acute, 

 permanent segments. Corolla of one petal, salver-shaped 5 tube 

 longer than the calyx, cylindrical below, dilated and marked with 

 five grooves above, five-sided at the mouth ; limb horizontal, 

 deeply divided into five oblique, abrupt segments, attached to the 

 top of the tube. Filaments short; first bent inwards and then 

 outwards ; anthers membranous, obtuse, erect, incurved with the 

 pollen at the margin. Germens two, roundish, accompanied by 

 two roundish lateral glands. Style one, common to both ger- 

 mens, cylindrical, shorter than the tube ; stigma knobbed, seated 

 on a round, flat disk. Follicles two, cylindrical, acute, erect. 

 Seeds several, oblong, cylindrical. Name doubtful. 126. 



1. V. miner. Lesser Periwinkle. Stems procumbent ; leaves between 



