728 SPONDIACEAE 
Leaves 3-foliolate throughout. . 
Leaves 2-5 em. long ; lateral leaflets with mostly obovate blades. 1. S. trilobata. 
Leaves 5-10 cm. long; lateral leaflets with mostly ovate blades. 2. S. aromatica. 
Leaves pinnately compound, 5-many-foliolate. 
Rachis of the leaf winged. 
Panicles contracted, raceme-like: leaves 2-2.5 cm. long. 8. S. microphylla. 
Panicles pyramidal: leaves 1-4 dm. long. 
Leaflets acute or acuminate: wings of the rachis broad. 
Leaflets long-acuminate, falcate: drupes about 6 mm. broad. 4. S. lanceolata. 
Leaflets acute or short-acuminate, not falcate : drupesabout4mm. broad. 5. S. copallina. 
Leaflets rounded at the apex: wings of the rachis very narrow. 6. S. obtusifolia. 
Rachis of the leaf not winged. i 
Leaflets with entire blades. 7. S. virens. 
Leaflets with toothed blades. 
. Foliage more or less glaucous or pale. . 
Twigs, panicles and drupes bristly pubescent with long spreading hairs. 8. S. hirta. 
Twigs, panicles and drupes usually pubescent with soft very short hairs. 
Leaflets with acuminate, sharply serrate blades. 9. S. glabra. 
Leaflets with crenate-serrate blades, rounded at the apex. 10. S. Ashei. —— 
Foliage densely pubescent with brownish hairs, not glaucous. 11. S. Michauxii. 
1. Schmaltzia trilobàta (Nutt.) Small. An offensive-scented shrub 0.5-1 m. or 
rarely 2 m. tall, the branches often gnarled. Leaves 2-5 cm. long, densely pubescent, or 
nearly glabrous, petioled ; leaflets 3, the blades firm, sessile, crenate or incised above, the 
terminal one cuneate, the lateral ones obovate, much smaller than the terminal one: flow- 
ers greenish, in dense spike-like racemes: sepals oblong, obtuse, 1.5 mm. long, slightly 
concave: petals oblong, 3 mm. long, obtuse: drupes subglobose, 6-7 mm. in diameter, 
Sach bristly pubescent : stone lenticular, broader than high, gibbous. [Rhus trilobata 
utt. 
On plains and prairies, Missouri to North Dakota, Washington, California and Texas. Spring. 
SKUNK BUSH. ILL-SCENTED SUMAC. 
2. Schmaltzia aromática (Ait.) Desv. A straggling aromatic shrub 1-10 dm. tall. 
Leaves 5-10 cm. long, petioled ; leaflets 3, the blades leathery, coarsely crenate or serrate, 
sometimes incised, 2-6 cm. long, pubescent or rarely glabrous, the terminal one ovate to 
obovate in outline, usually acute or acuminate at the apex, more or less cuneate at the base, 
the lateral leaflets mostly ovate, inequilateral : flowers yellow, in dense spike-like racemes : 
sepals oval, obtuse, about 1.5 mm. long: petals 5, oblong, 2.5 mm. long, obtuse, nearly 
erect: stamens shorter than the petals: filaments subulate, about as long as the anthers: 
drupes subglobose, 7-8 mm. in diameter, bristly pubescent. [Rhus aromatica Ait. ] 
Pe es sandy soil and rocky woods, Ontario to Minnesota, Florida and Louisiana. Spring. FRAGRANT 
3. Schmaltzia microphylla (Engelm.) Small. A shrub 1-3 m. tall, with spreading 
branches, the twigs finely pubescent. Leaves pinnately compound, 2-2.5 cm. long, the 
rachis winged ; leaflets 7-9, the blades oblong, elliptic or obovate, 6-8 mm. long, sessile, 
acute or obtuse, more or less pubescent : flowers in dense axillary clusters : sepals orbicular- 
ovate, 1.5 mm. long, ciliate: petals oblong, 2-2.5 mm. long, very thin, fringed with long 
qa ias subglobose, about 5 mm. in diameter, bristly pubescent. [Rhus microphylla 
ngelm. - 
On rocky hillsides and thickets, Texas to New Mexico and northern Mexico. Spring. 
4. Schmaltzia lanceolàta (A. Gray) Small. A shrub 1-2 m. tall, or rarely lower. 
Leaves. aspi compound, 1-2 dm. long, the rachis narrowly winged ; leaflets 13-17, 
the blades lanceolate or linear-lanceolate, more or less falcate, 3-7 cm. long, acuminate, 
entire or indistinctly toothed, deep green and lustrous above, paler and softly pubescent 
beneath, often sessile : panicle erect, 5-14 cm. high, its branches densely pubescent : flow- 
ers white or greenish : sepals ovate, erect, 1 mm. long, obtuse : petals oblong-ovate, 2-2.5 
mm. long, obtuse, curled back : stamens exserted : drupes lenticular, 6 mm. pubes- 
cent, dark red. [Rhus copallina var. lanceolata A. Gray. ] 
In valleys and on dry uplands, Texas. Summer. ` 
5. Schmaltzia copallina (L.) Small. A shrub or tree, reaching a height of fO m., 
but often less than 1 m. tall, with a sticky milky sap and glabrous or pubescent em 
Leaves pinnately compeund, 1-3 dm. long, the rachis winged ; leaflets 9-21, the blades 
oblong or lanceolate of sometimes oval, 3-10 cm. long, normally acuminate and acute, 
undulate, sessile, lustrous above, paler and dull beneath : panicles broad, 0.5-3 dm. long; 
densely flowered : flowers greenish : sepals ovate, erect, about 1 mm. long, rather ohti 
petals oblong, obtuse, 2.5 mm. long, curled back : stamens in the staminate flowers ex d 
drupes lenticular, nearly orbicular, about 4 mm. broad, finely pubescent, bright red : stone 
lenticular, shining. [Rhus copallina L.] ia 
Indry often stony soil, Maine to Ontario, Minnesota, Floridaand Texas. Summer. DWARF SUMAC. 
SMOOTH SUMAC. MOUNTAIN SUMAC. 
