i88 
Frustraneous Polygamy,' Polyg, Frustra. 
Cups fringed, with a small ovate scale at the 
the end : fringes hair-like, upright, leaves 
lyre-shaped, angular, flowers without rays. - 
Sowerby. 278. Martyn. 130. 
Pastures, July, P. Common. 
617. Great Knapweed. — C. Scabiosa. 
Cups fringed, leaves winged, wings spear- 
shaped. — Sowerby. 56. 
Cornfields, July, P. Common. 
618. Star Thistle. — C. Calcitrapa. 
Cups almost doubly thorned, sitting, leaves 
winged, strap-shaped, toothed, stem hairy. - 
Sowerby. 125. excellent. 
Road-sides, July, A. Rare. 
Biddenham^ — Eaton^Socon. 
^ ^ ^ ^ 
Necessary Polygamy. Polyg. Necess. 
The hermaphrodite floretSy from some defect in 
the stigmas y are unable' to produce seeds y hut 
the female florets in the ray perfect their 
seeds. . 
CaVs-foot. Fiiago. Gen. PI. 1345. 
Receptacle naked. Feather none. Cup tiled : 
female florets placed between the scales of 
the cup. 
Common 
