(258) 



8. T. PAUCiPLORUM Nutt. Heads involii- 

 crate; involucre herbaceous, deeply lobed, the 

 lobes deeply dentate; corolla not becoming in- 

 flated; legume 1-2-ovulate; petals scarcely ex- 

 ceeding tlie calyx, purple or rose-eolor. — 0. 

 Common. Spring. 



9. T. MiCROCEPHALUM Pursli. Heads invo- 

 lucrate; involucre membranaceous, its lobes 

 entire; corolla not becoming inflated; petals 

 pale. — 0. Common. Spring. 



10. T. MiCRODON Hook. & Arn. Heads in- 

 volucrate; involucre membranaceous, its lobes 

 3-dentate; corolla not becoming inflated; petals 

 wliite or pale. — 0. Common. Spring. 



11. T. BARBIGERUM Torr. Heads involu- 

 crate; involucre broad, oo-dentate; corolla be- 

 coming inflated; petals purple. — 0. Com- 

 mon. Spring. 



12. T. rucATUM Lindl. Heads involucrate; 

 involucre deeply lobed; corolla becoming in- 

 flated, pale. — 0. Common. Spring. 



13. T. DEPAUPERATUM Desv. Involucre al- 

 most 0, reduced to a mere disc; corolla becom- 

 ing inflated, white or purple. — 0. Common. 

 Spring. 



5. Melilotus Toiu-n. Melilot. 

 Diadelphous. Petals free from the column 

 of stamens and deciduous. Legume globose. 

 Flowers racemose. Leaves pinnately 3-foli- 

 olate; stipules adnate. 



