272 ORDER XLHI. LEGUMINOS^. 



29. Calyx 4-eleft Galactia, 18 



Calyx somewhat bilabiate 30 



30. An herbaceous vine Apios, 9 



A slirubby vine Wistaria, 10 



81. Trees and shrubs Amorpho, 25. Rohinia, 20 



Herbaceous i>lants 32 



32. Leaflets few Petalostemon, 27 



Leaflets 7 or more S3 



33. Stamens diadelplious 84 



Stamens monadelphous 35 



34. Stamens 5 in each division ^sahynomene, 80 



Stamens 1 in one division, 9 in the other Jndigofera, 23 



35. Legume 2-celled Astragalus, 31 



Legume 1-celled .• §6 



36. Legume many-seeded Tephrosia, 21 



Legume fcM'-seeded 87 • 



37. Flowers in dense spikes or capitate Dalea, 26 



Flowers in racemes Fhaca, 32 



SS. Trees or shrubs Cercis, 45 



Herbaceous plants 39 



89. Flowers yellow 40 



Flowers not yellow Lupinus, 41 



40. Flowers in racemes 41 



Flowers in spikes Zornia, 33 



41. Peduncles opposite the leaves Orotalaria, 40 



Peduncles not opposite the leaves Rhynchosia, 11 



42. Trees Gleditschia, 47 



Not trees 43 



48. Flowers yellow 44 



Flowers rose-color 45 



Flowers white DarUngtonia, 50 



44 Calyx 5-sepaled Cassia, 46 



Calyx 4-toothed Acacia, 51 



45. Legume many-seeded Schrankia, 49 



Legume few -seeded Mimosa, 48 



Sub-order L— PAPILIONA'CE^. 



Sepals with an imbricated aestivation. Stamens 10, perigy- 

 nous, or inserted with the petals into the bottom of the calyx. 

 Corolla papilionaceous. 



Tribe L— VIC'IE^. 



Stamens diadelphous. Legumes continuous, without contrac- 

 tions. Cotyledons thick, radicle curved. Leaves equally pin- 

 nate, the midrib usually produced into a tendril. 



Genus I— PI'SUM. Tourn. 16—10. 

 (The Latin name of Pea.) 



Segments of the calyx foliaceous, the 2 superior ones short- 

 est. Style triangular, carinated, with a sharp edge, downy on 

 the upper side. Legume oblong. Seeds globose. 



1. P. SATi'vuM, (L.) Petioles terote, bearing 3 pairs of ovate, entire, 

 glaucous leaflets. Stipules ovate. Peduncles 2 or many flowered. — 1^. 

 Native of the south of Europe. Tea. 



