G8 laTAcK.K. (kuk family.) 



AviilioiU ii central axis. Alliiiiiifii none. — rro.strato lii'ih.>i. Loaves al)riij)tlv 

 jiinnatf. J'eilunc-lcs solilary, l-llowert'd. 



1. T. Cistoides, L. Leaves uneiiiial; IcaHet.s 6- 16, linearolilung, nm- 

 crouate, silk\ licncatli ; peduncles as lung as the leaves; flowers large, yellow. 

 — South FKirida. — Slenis \°-'2^ '""J?, liairy. IVtaLs 2-3 times a-s long as 

 tiie calyx. 



2. KALLSTROMIA, Scop. 



Sejjals 5-G, per.-<i.stcnt, iiuluiialeil in the hud. Stamens 10-12. Ovary 

 10- 12-celled, the cells 1-ovuled. Carpels of the fruit 10-12, separating from 

 each other and from the ceutral axis. Alliumcn none. — Hairy herbs, with 

 the habit nl Tunii i.us. 



1. K. maxima, Torr. & Gray. Leaves nearly equal; leaflets 6-8, ob- 

 li([uely ol)]on_n, muironate, tiie terminal pair larger; jiedundes shorter than 

 the leaves ; petals as long as the bristly calyx, yellow ; carpels rugo.se ou the 

 back. — Key West and Savannah. — Stems l°-2° long. 



3. GUAIACUM, rium. 



Sepals 5, deciduous. Stamens 10, with naked filaments Ovary stalked, 

 2-5-eelled, the cells 8-10-ovuled. Carpels of the fruit 2 -.5, compressed, 1- 

 seeded. Seed-coat fleshy. Embryo straight iu hard thin albumen. — Trees. 

 Leaflets reticulate. Flowers blue or jiurple. 



1. G. sanctum, L. Branches oi)])Osite and forking, jointed, pubescent 

 when young ; leaflets 6 or 8, obliquely obovate or oblong, mucronate, entire; 

 peduncles single or clustered at the forks of the branches, 1-flowered, shorter 

 than the leaves ; sepals and petals obtuse ; flowers blue. — South Florida. — 

 A small tree with white bark. Flowers y wide. Fruit obovate. 



OiiDER ;«. RUTACE^. (RrE Family.) 



Herbs, .shrubs, or trees, with exstipulate .simple or compound dotted 

 leaves, and regular hypogynous perfect or unisexual flowers. — Sepals 

 and petals 3 -.5. Stamens as many or twice as many as the sepals. 

 Ovaries 2-5, distinct or united, stipifate or sessile on a glandular disk. 

 Styles mostly united. Fruit commonly composed of separate 1-celled 

 2-valved carpels. Embryo straii^ht or curved, mostly in fleshy 

 albumen. 



1. XANTHOXYLUM, L. Prickly Ash. 



Flowers moncvcious or diciecious. Sepals and petals 3-5. Stamens 3 -.5. 

 Ovaries 2 -.5, sessile or stipitate, 2-ovulcd. Carpels 2-valved, 1-2-seeded. 

 Seed smooth and shining. — Trees or shrubs, commonly armed with sfipular 

 prickles. Leaves unequally pinnate, the leaflets punctate with pellucid dots 

 Flowers small, greenish. 



1. X. Clava-Herculis, L. (Toothache Tree.) Smooth; branches 

 and commonly the petioles armed with long prickles; leaves alternate, 7-9- 



