TrifdUicm.'] xx,yi. leguminos^ : trifolie^ 



101 



n^i' 



i 



1 , 



I' 



If 



trefoil is in great repute for pastures. The leaflets have often a dark 

 spot at their base, with a white line bordering it near the middle, 



[Allied to this is T, Vaillantii Poir. and Sm. in Rees's Cycl., 

 r, elegans Savi, which has been met with in clover-fields in 

 Surrey, introduced with seed. It has an ascendinf^ stem, short 

 petiole, and 2-seeded legume.] 



** Flowers sessile. Calyx not inflated. Standard deciduous or 



unaltered. Legumes l- or 2-seeded. 



f Calyx with an elevated hairy ring in the throat. 



2. T. ocliroleucum L. (^Sulphur- coloured T.) ; heads stalked 

 terminal solitary, calyx pubescent, the teeth erect in fruit 

 subulate, lower one much longer than the rest, leaflets elliptic 

 or obovate, those of the lower leaves heart-shaped, stem ascend- 

 ing downy. E.B. t. 1224. 



Pastures and way-sides in England, on gravel or chalk. Frequent 

 also in the clayey soil of Norfolk and Suffolk. 1(1, 6 — 8. — Afoot 

 or more high. Petioles long. Stipules subulate, ribbed. Heads of 

 flowers large, at first hemispherical, at length oval, cream-coloured. 

 Throat of the calyx with a thickened ring, pubescent within on its 

 upper side. The corolla turns brown and is persistent. 



3, T. pirdense L. (common purple C) ; heads dense ovate 

 sessile, calyx hairy, its teeth setaceous ciliated, lower one longer 

 than the rest ^ longer than the tube of the corolla, stipules 

 ovate bristle-pointed, leaflets oval or obcordate, stems ascending. 

 E. B, t. 1770. 



X . 5—9. 



Flowers reddish- 



Meadows and pastures, frequent, 



purple. Throat of the calyx with a thick hairy ring, in this and the 



next. This is the common Clover, so much cultivated for hay. The 



leaflets are oval obovate or obcordate, often marked with a white lu- 

 nulate spot. 



4. T. medium L. (zigzag T.) ; heads lax subglobose stalked 

 solitary terminal, calyx glabrous, the teeth setaceous hairy, 

 lower one longer than the rest about equal to the tube of the 

 corolla, stipules lanceolate acuminate, leaflets elliptical, stems 



branched 



zu2:za«:. 



£, B. t. 190. 



r 



Pastures, frequent. %, 6 — 9.-^ Stem remarkably zigzag. Heads 

 oi flowers larger than the last, deeper purple. Leaves spotless. Infe- 

 rior in quality to T. pratense, but better for pasture on light soils. 



5. T. maritimum Huds. (TeaseUheaded T.) ; heads ovate- 

 globose stalked terminal, teeth of the calyx ciliated rigid at 

 nrst subulate erect, the lower one much longer and larger than 

 the rest shorter than the claws of the petals, all of them in fruit 

 enlarged and spreading, stipides subulate-lanceolate elongated, 

 ieullets oblong-obovate, stem ascendino-. E. B. t. 220. 



F 3 



