19^ 



THE FLORA. 



10. OAS'SIA. Senna. 

 Sepals 5, scarcely united at base, nearly equal. Petals 5, unequal, but 

 not papilionaceous. Stamens 10, distinct, 3 upper anthers often sterile, 3 

 lower ones beaked. Legume long, many-seeded. — Leaves simply and 

 abruptly pinnate, mostly with a gland on the petiole. Flowers yellow. 

 July^ Aug. 



1 Racemes axillary. 3 of the anthers imperfect, 7 of them perfect 1,3 



T[ R acemes above the axils. Anthers all perfect. Stem l-2f. high 4, 5 



1 C. obtusifo'lia. Blunt S. Leaflets 4-6, obtuse. Stem l-3f. high. S. 



2 C. occidenta'lis. Western. S. Leaflets 6-12, acute. Stem 4-6f. liigh. S. 



3 C. Marilan'dica. American S. Leaflets 12-18, mucronate. Stems of. high. 



4 C. Chamaecris'ta. Sensitive Pea. Anthers 10, unlike. Fls. large. Lfts. 16-24. 



5 C. nic'titans. Sensitive S. Anthers 5, alike. Fis. small. Leaflets 12-30. 



Order XLYII. ROSACEA. Roseworts. 



Trees., sJiruhs, or Jierhs with stipules mostly, and alternate leaves; witli 

 jiowers regular, commonly showy, perfect, and polyandrous ; with 

 5 sepals united at base, often supported by as many dractlets outside ; 

 5 petals (rarely 0), which are perigynous as well as the stamens ; 

 1-co 2yi8tils, which are distinct, or sometimes united and adhering to the 

 calyx tube ; fruit various ; seeds with no albumen. 



