RUTACE.E, ANACARDIACE^E. 43 



IMPA'TIENS, L. TOUCH-ME-NOT. JEWEL-WEED. 



t. I. fulva, Nutt. (SPOTTED TOUCH- ME -NOT.) Flowers 

 orange-coloured, spotted with reddish brown. Sac longer than 

 broad, conical, tapering into a long recurved spur. Cedar 

 swamps and along streams. 



2. I. pal'lida, Nutt. (PALE T.) Flowers pale yellow, spar- 

 ingly dotted with brown. Sac dilated, broader than long, 

 ending in a short spur. Wet places. 



ORDER XXIV. RUTA'CE^I. (RuE FAMILY.) 

 Shrubs, with compound transparently-dotted leaves, and 

 an acrid taste. Flowers (with us) direcious or polygamous, 

 appearing before the leaves. Stamens hypogynous, as 

 many as the petals. 



Synopsis of the Genera* 



1. Xanthox'ylum. Flowers dioecious. Ovaries separate, forming pods. 



Leaflets more than 3. 



2. Ptel'ea. Flowers polygamous. Fruit a samara, winged all round. 



Leaflets 3. 



1. XANTHOX'YLUM, L. PRICKLY ASH. 



X. America' num, Mill. (NORTHERN PRICKLY ASH. 

 TOOTHACHE TREE.) A prickly shrub, with yellowish-green 

 flowers in dense umbels in the axils. Sepals obsolete or 

 none. Petals 5. Stamens in the sterile flowers 5. Carpels 

 3-5, forming fleshy 1-2-seeded pods. Fruit very pungent 

 and aromatic. Leaves pinnate, 4-5 pairs, with an odd one 

 at the end. Forming thickets in low grounds along streams. 



2. PTE'LEA, L. SHRUBBY TREFOIL. HOP-TREE. 

 P. trifolia'ta, L. A tall shrub with greenish-white 

 small polygamous flowers in compound terminal cymes. 

 Sepals 3-5. Stamens as many. Ovary 2-celled. Stigmas 2. 

 Fruit a 2-celled and 2-seeded samara, winged all round. 

 Leaves of 3 ovate pointed leaflets. S. "W. Ontario. 



ORDER XXV. ANACARDIA'CE^E. (CASHEW FAMILY.) 

 Trees or shrubs, with a milky or resinous juice, and 

 alternate leaves without dots or stipules. Sepals, petals and 



