SANDALWOOD FAMILY 67 
flowers 4-parted; stamens 4, inserted around a rudimentary 
ovary. Pistillate flowers with 4 unequal sepals, the inner 
ones dilated in fruit; akenes smooth, compressed.* 
1. U. gracilis Ait. SLENDER Nerve. Perennial, slender, with 
some stinging hairs, 2-6 ft. high. Leaves ovate-lauceolate or nar- 
rower, With slender petioles, taper-pointed, sharply serrate, with 3-5- 
nerves arising from the rounded or sometimes almost heart-shaped 
base, almost smooth; stipules lanceolate. Flower clusters in branch- 
ing panicled spikes, longer than the petioles. Flowers dicecious or 
bisexual. 
2. U. urens L. Smarty Nertre. Annual; stem stout, 4-angled, 
hairy, 12-18 in. tall, with few stinging hairs; branches slender. 
Leaves elliptical or ovate, serrate or incised, 3-5-nerved, acute or 
obtuse at the ends, thin, hairy; petioles often as long as the blades; 
stipules short. Flower clusters axillary, in pairs, loose, mostly shorter 
than the petioles. On damp soil in waste places. Naturalized from 
Europe. 
22. SANTALACEZA. SanpDALWooD FaMILy 
Herbs, shrubs, or trees with entire leaves. Flowers usually 
small. Calyx 4-5-cleft, its hmb epigynous. Corolla wanting. 
Stamens as many as the calyx lobes and opposite them, 
inserted on the margin of a fleshy disk. Style 1; ovary 
1-celled, with 2-4 ovules borne at the top of a free central 
placenta. Fruit 1-seeded. 
COMANDRA Nutt. 
Low, smooth perennials with herbaceous stems, rather 
woody below, often parasitic. Leaves alternate and nearly 
sessile. Flowers nearly white, in small umbel-like clusters, 
bisexual. Calyx bell-shaped at first. Stamens borne on a 
5-lobed disk which surrounds the pistil; anthers connected 
by a tuft of hairs to the calyx lobes. 
1. C. umbellata Nutt. Bastarp ToapFrriax. Plant 8-10 in. high, 
with very leafy stems. Roots attached to the roots of trees, from 
which they draw nourishment. Leaves oblong or oblanceolate, pale, 
nearly 1 in. long. Umbel-like clusters about 3-flowered, longer than 
the leaves. Rocky, dry woods. 
