DICOTYLEDONOUS PLANTS 137 



4. E. Cyparissias, L. Cypress Spurge, Cypress, Graveyard 



Moss. A perennial, in dense clusters 6-12 in. high from running 

 rootstocks. Leaves much crowded, all sessile, the stem-leaves linear, 

 floral ones broadly heart-shaped. Flower-cluster a simple, many- 

 rayed umbel. Glands crescent-shaped. Cemeteries, roadsides, etc., 

 escaped from cultivation; also cultivated in old gardens. From 

 Eni'ope. 



II. JATROPHA, L. 



Shrubs or herbs. Leaves alternate. Flowers moncEcious, 

 stamiiiate and pistillate intermixed in the cymes, apetalous. 

 Calyx large, white, o-lobed, corolla-like. Stamens numerous, 

 usually monadelphous. Ovary usually 3-celled, 3-seeded ; 

 styles 3, united at the base, several-parted.^ 



1. J. stimulosa, Michx. Spurge I^ettle. Perennial herbs armed 

 with stinging hairs ; stems erect, branched, bright green with white 

 lines, 8-15 in. high. Leaves long-petioled, deeply palmately 3-5- 

 lobed, the lobes irregularly cut and toothed, often mottled. Sepals 

 white, spreading. Seeds oblong, smooth, mottled. In dry woods S.* 



54. ANACARDIACE^. Sumac Family. 



Trees or shrubs, with resinous, acrid, or milky sap. Leaves 

 simple, of 3 leaflets or pinnately compound, alternate, with- 

 out stipules. Flowers perfect or imperfect, small. Calyx 

 3-5-parted, persistent. Petals 3-5 or wanting. Stamens as 

 many as the sepals or sometimes twice as many, inserted in 

 the base of the calyx, distinct. Ovary free, 1-celled, styles 

 1-3. Fruit a 1-seeded stone-fruit.* 



RHUS, L. 



Trees or shrubs. Leaves of 3 leaflets or odd-pinnate. 

 Flowers in spikes or panicles. Calyx mostly 5-parted. 

 Petals and stamens 5. Pistil 1, sessile ; styles 3, terminal. 

 Fruit small, smooth or downy.* 



1. R. glabra, L. Sumac. A shrub or small tree, sometimes 

 25-30 ft. high ; branches downy. Leaves odd-pinnate, main midrib 

 downy and wing-margined ; leaflets 9-21, ovate-lanceolate, acute at 

 the apex, inequilateral, entire or slightly toothed, smooth and green 



