IV Males- IV Females. Tetr. Tetr. 
2.9 
Rivers and Ditches, June, P. Rare^ 
Ditch near Fenlake Osier-holts. 
135. Least Pondzveed. — P. pusillum. 
Leaves strap-shaped, oposite and alternate, 
separate, open at the base, stem round. — 
Sowerby. 215. 
Ditches and Ponds, that communicate with 
the main River, June, P. Common. 
Pearhvort. Sagina. Gen. PI. 236. 
Cup of 4 leaves. Petals 4. Seed-vessel 1- 
celled, 4-valved : many seeded. 
<36. Procumhent Pearlwort. — S. procumbens. 
Branches trailing. — Curtis. III. 12. 
Moist situations on Heaths, July, P. Com- 
mon. 
137, Apetalous Pearlvoort. — S. apctala. 
Stem rather upright, downy, flowers alter- 
nate, without petals. — Curtis. V. 14. 
Walls, June, A. Rare. 
Market-Street, near Dunstable, 
Ohs : 
Stem erect from i avd a half to 3 Inches h?gk. Petals 
very minute^ four, ricked, almost heart-shaped: Segments 
of the cup ovate, concave. 
Upright 
