34 RUTACEH. (ORANGE FAMILY.) 
decumbent; leaves pinnate the leaflets laciniately pinnatifid with narrow acute lobes, 
tho opposite leaves unequal; the long peduncles in the axils of the smaller leaves bearing 
4 to 8-flowered umbels; the slender pedicels at length reflexed, the fruit still erect; the 
‘bearded carpels with spirally twisted tails. 
2, HE. moschatum, L’Her. (Muszy Fiuaria.) Similar to the last but of a lighter 
green and the leaflets unequally and doubly serrate, not pinnatifid. Gives out a musky 
odor when wilted. 
3. E. macrophyllum, Hook. & Am. leaves reniform-cordate, 1 to 3 inches 
broad; sepals broad, 5 to 6 lines long. 
3. LIMNANTHES, R. Br. 
Glands 5, alternating with the petals. Stamens 10. Style 5-cleft at the apex. An- 
nual low diffuse herbs, with pungent juice, growing in wet places; leaves pinnate, 
without stipules; flowers yellowish-white or rose-colored, solitary on axillary peduncles. 
1. L. Dougilasii, R. Br. Glabrous, yellowish green, weak and succulent stems; 
leaflets incisely lobed; peduncles at length 2 to 4 inches long; sepals lanceolate, 3 to 4 
lines long, half the length of the oblong or obovate, emarginate or truncate petals, 
Var alba, Hartweg. Villous sepals; shorter, white petals. 
4. OXALIS, L. 
‘The parts of the flower in fives. Stamens 10; the filaments dilated and united below. 
Capsule columnar or ovoid, beaked with the short style. Low herbs with sour watery 
juice; leaves alternate or radical, digitately trifoliolate, leaflets obcordate. 
1, O. Oregana, Nutt. (Repwoop SorreL.) Acaulescent, rusty-villous; rootstock 
creeping; leaflets broadly obcordate, 1 to 1$ inches broad; petioles 2 to 8 inches long; 
scapes equaling or exceeding the leaves, mostly 1-flowered; petals 6 to 12 lines long, white 
or rose-colored, often veined with purple. 
2. ‘O. corniculata, L. (YELLow Sorren.) Distinguished by its slender branching 
stems, and smaller yellow flowers. 
Orprr 16. RUTACEAs. 
Pellucid or glandular-dotted aromatic leaves, along with definite hypogynous stamens 
and definite seeds characterize this order, although some of the orange-tribe have many 
stamens, 
1. PTELEA, L. Hor-TREE, 
Flowers polygamous. Sepals, petals and stamens 4 or 5; ovary with a short, thick 
