CL. V.] PENTANDRIA MONOGYNIA. 135 



valved. 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, with- 

 out bracteas; stems procumbent. Leaves small, egg-shaped, 



acute: flowers small, white or reddish. A small plant, with 

 spreading and procumbent stems. Perennial : flowers in July : 

 grows in marshy ground in Cornwall and Devonshire. Eng. Sot. 

 vol. xiii. pi. 895. Eng. Fl. vol. i. p. 336. 378. 



39. GLAUX. SEA MILKWOET. 



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

 divided into five obtuse, spreading, recurved, permanent seg- 

 ments. Corolla 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 glances, grey. 124. 



1. G. maritima. Sea Milkwort. 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. 12o. 



1. T.linophy'llum. 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 seg- 

 ments. Perennial : 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 ; 

 tube longer than the calyx, cylindrical below, dilated and 

 marked with five grooves above, five-sided at the mouth j 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, com- 

 mon to both germens, cylindrical, shorter than the tube ; stigma 

 knobbed, seated on a round, flat disk. Follicles two, cylindrical, 

 acute, erect. Seeds several, oblong, cylindrical. Name 

 doubtful. 12G. 



