CHICK WEED TRIBE. 89 



5. AGROSTEMMA (Corn-cackle). Calyx naked at the 

 base, tough, with leaf-like divisions ; petals undivided ; 

 capsule opening at the top with 5 teeth. (Name sig- 

 nifying in Greek, Grown of the Field.) 



Sub-order II. ALSINE.E. ChicJcweed Tribe. 



Sepals distinct ; stamens inserted into a ring beneath 

 the capsule, which is not stalked. 



6. SAGINA (Pearl- wort). Sepals 4 5, spreading 

 when in fruit ; petals 4 5, minute, or sometimes 

 wanting ; stamens 4 to 10 ; styles 4 5 ; capsule 4 5- 

 valved. (The name in Latin signifies fattening meat, 

 but is totally inapplicable to the minute plants of this 

 genus.) 



7. MCENCHIA. Sepals 4, erect ; petals 4 ; stamens 4 ; 

 styles 4 ; capsule opening at the top with .eight teeth. 

 (Name in honour of Conrad Moench, Professor of 

 Botany at Hesse-Cassel.) 



8. HOLOSTEUM (Jagged Chickweed). Sepals 5 ; petals 

 5, toothed at the margin ; stamens 3 5 ; styles 3 ; 

 capsule opening at the top with 6 teeth. (The name 

 signifies in Greek, all bone; but why it was given is 

 uncertain.) 



9. STELLARIA (Stitchwort). Sepals 5 ; petals 5, 

 deeply 2-cleft ; stamens 10 ; styles 3 ; capsule opening 

 with 6 valves, or teeth. (Name from stella, a star, 

 which the expanded flowers resemble in shape.) 



10. HONCKENYA (Sea Purslane). Sepals 5 ; petals 

 5, entire ; stamens 10 ; styles 3 5; seeds few, large; 

 flowers with the stamens or pistils imperfect. (Name 

 from M. Honckeny, a German botanist.) 



11. ARENARIA (Sandwort). Sepals 5: petals 5, 

 entire ; stamens 10 ; styles 3 ; capsule opening with 

 6 valves ; flowers all perfect ; seeds many, minute. 

 (Name from the Latin arena, sand, many species grow- 

 ing in sandy ground.) 



12. CERASTIUM (Mouse-ear Chickweed). Sepals 5; 



