31 
8. TRIFOLIUM. 
1. T. ORNiTHOPODioiDES. Bird’ s-foot Trefoil. June — July. O 
On the south road, half a mile from T adcaster. 
2. T. REPENS. White or Dutch Clover. May — September. 1/ 
In meadows and pastures, common. A variety with dark purple 
leaves not uncommon. 
3. T. PRATENSE. Purple Clover. May — September. 1/ 
In meadows and pastures. 
4. T. MEDIUM. Zigzag Trefoil. July. % 
Clink hank, on the White Dog, near Richmond. Fields near 
Hovingham Spa. Crompton, Cover, and other places, near York. 
5. T. ARVENSE. Hare’s-foot Trefoil. July — August. O 
In gravelly barren fields and waste ground, not common. In Hes- 
lington fields, near York. Near Rotherham. Blind pit, on Hutton 
moor, near Ripon. Half a mile south east of Terrington. 
6. T. scABRUM. Rough Rigid Trefoil. May — June. O 
In dry sandy lanes. Lane leading from Acomh to the Ouse, near 
York. Near the castle, Scarhro’. Ellershaw hill, near Ripon. 
7. T. STRIATUM. Soft Knotted Trefoil. June. O 
Clink hank, near Richmond. Bowhridge and Cankley mill, five 
miles from Sheffield. Near Lobster House, on the road from York 
to Malton. 
8. T. FRAGiFERUM. Strawbcrry-hcaded Trefoil. July — August. 
In wet pastures on black boggy soil. Knavesmire, near York. 
9. T. PROCUMBENS. Hop Trefoil. June — July. O 
In dry fields or pastures, not uncommon. 
10. T. MINUS. Lesser Yellow Trefoil. June — ^July. O 
In dry gravelly fields, common. 
11. T. FiLiFORME. Slender Yellow Trefoil. June — July. O 
In sandy or gravelly grassy pastures. 
The different species of Trefoil exhibit a striking exemplification of spontaneous movement in vege- 
tables, both leaves and flowers appearing to court the light with avidity, by regularly following the course 
of the sun. They aflford nourishment and protection to numerous insects, which may be taken by 
brushing clover fields with a brushing net ; amongst them may be found, Melitcea Cinxia, (the Glanville 
Fritillary;) Polyommatus Alsus, (Small Blue ;) (Silver-studded Blue ;) Anthro- 
cera Melilota TrifoliiscaA Loti, (the Burnets ;) Lasiocampa Trifolii, (the Grass Egger;) Dasychira 
fascelina, (the Dark Tussock ;) Orthosialitura, (the Brown-spot Pinion;) Mamestra Suasa, (the Dog’s 
Tooth ;) Acontia Solaris, (the Black Kidney;) Euclidia glyphica, (the Burnet;) Apion Melilotmn ; A. 
Loti; A . flavifemoratum ; A. vicinum; A. assimile ; &c. 
