48 CASSIACEAE. 



1. V. Farnesiana (L.) Wight & Am. Small tree or shrub: leaf -pinnae 8-16; 

 leaflets 20-25, the blades linear-obloug, 2-4 mm. long: calyx about 1.5 mm. 

 long: corolla 2-2.5 mm. long: pods 3-7.5 em. long. — All j^ear. 



The Yellow-opopanax grows in woods and thickets in upper peninsular Florida, 

 where it is apparently naturalized and in hammocks and pinelands on the Ever- 

 glade Keys where it is mostly native, and on the Florida Keys. The reddish-brown 

 heart-wood is close-grained, heavy, and hard. (IT. I.) 



5. LEUCAENA Benth. Shrubs or trees. Leaves mostly 2-piunate: 

 leaflets often small and numerous. Spikes capitate. Calyx-lobes minute. 

 Petals distinct or rarely slightly coherent. Filaments distinct or nearly so. 

 Pod linear, flat. 



1. L. glauca (L.) Benth. Tree becoming 10 m. tall: leaflets 6-12 mm. long; 

 blades narrowly oblong to lanceolate, over 1.5 mm. broad: calyx 2-2.5 mm. 

 long or rarely shorter : petals 4-4.5 mm. long : pods 15-25 cm. long. — Spr. 



The Lead-tree grows in hammocks on the Everglade Keys and on the Florida 

 Keys. The brown and red-streaked heart-wood is close-grained, heavy, and hard. 

 (W. I.) 



Family 7. CASSIACEAE. Senna Family. 



Trees, shrubs, or herbs. Leaves alternate: blades compound, 1-2- 

 pinnate, rarely 1-foliolate. Flowers perfect, polygamous, monoecious, or 

 dioecious, more or less irreg-ular. Calyx of 3-5, usually slightly united, 

 sepals, sometimes borne on the edge of a well developed hypanthium. 

 Corolla of 3-5 unequal distinct petals. Androecium of 6-10 distinct or 

 nearly distinct stamens. Gynoecium 1-carpellary. Fruit a legume. 



Corolla apparently papilionaceous : leaves with 1-foliolate blades 1. Cercis. 

 Corolla Irregular, but not papilionaceous. 



Leaves with 2-pinnate blades : stamens 6-10. 



Flowers dioecious or polygamous : petals nearly equal. 2. Gleditsia. 



Flowers perfect : petals very unequal. 



Leaf with a very short petiole which ends in a spine, 



each division with a long, flat phyllode-like rachis. 3. Paekinsoxia. 



Leaf with a relatively long petiole, the rachises of the 

 divisions not phyllode-like. 

 Calyx-lobes valvate. 4. Delonix. 



Calyx-lobes imbricate. . 5. Poinciaxa. 



Leaves with 1-pinnate blades : stamens 3. 6. Tamaeixdus. 



1. CERCIS L. Shrubs or trees. Leaves 1-foliolate: leaflet broad. Calyx 

 shallowly lobed: tube gibbous. Corolla pink-purple: keel-petals of the ap- 

 parently papilionaceous corolla longer than the others. Anthers short, opening 

 lengthwise. Pod very flat. 



1. C. canadensis L. Tree or shrub: leaf -blades broadly ovate to reniform: 

 pedicels mostly less than 1.5 cm. long: sinuses of the calyx nearly as broad aa 

 the lobes: larger petals 12-13 mm. long; blades ovate: pods linear-oblong, 

 6-9 cm. long. — Spr. 



The Redbud grows in rich woods in northern Florida and the upper half of 

 the peninsula. The reddish-brown heart-wood is rather coarse-grained and heavy, 

 but hard and weak. Also known as Judas-tree. (Cont.) 



2. GLEDITSIA L. Trees with simple or branched thorns. Leaves rela- 

 tively small, 2-pinnate: stipules present. Calyx-lobes obtuse, about as long 

 as the petals. Pod flat. Spr. 



Ovary glabrous : style manifest : pods oval or elliptic, 1-seeded or rarely 2-seeded. 



1. G. aquatica. 

 Ovary pubescent : style obscure : pods linear, many-seeded. 2. O. triacanthos. 



