DICOTYLEDONOUS' PLANTS 1a 
downy, usually with a dark zone near the middle. Flowers in a 
long peduncled umbel, showy, red or white, often double. Number- 
_less varieties in cultivation. _ 
3. P. graveolens, Ait. Rosr GERANIUM. Stem erect or ascend- 
ing, densely downy, 1-3 ft. high. Leaves alternate, palmately lobed 
or divided, the lobes often finely dissected, rolled under at the edges. 
Flowers umbelled, small, light purple with darker veins; -whole 
plant very fragrant. Common in cultivation. 
4. P. odoratissimum, Ait. NurmeG GerrRANIUM. Branches 
crooked and straggling from a very short, moderately stout main 
stem. Leaves small, roundish and scalloped, covered with velvety 
down, very fragrant. Flowers white, inconspicuous, on short pedi- 
cels, the petals hardly longer than. the calyx. 
48. OXALIDACEZ. Woop-sorreEL FAMILY. 
Herbs or woody plants. Leaves compound. Flowers in 
fives, perfect, regular, hypogynous. Stamens 10, somewhat 
monadelphous at the base. Ovary with several ovules in 
each cell. Fruit a capsule. 
OXALIS, L. 
Acid herbs. Leaves radical or alternate, with or without 
stipules, usually of 3 leaflets, which droop at night. Sepals 
5. Petals 5. Stamens 10. Ovary 5-lobed, 5-celled ; styles 5. 
1. 0. Acetosella, L. Woop-sorreL. Stemless, from a creeping, 
scaly rootstock. Leaves all radical, long-petioled, of 3 inversely 
heart-shaped leaflets ; scape slender, 2—5 in. high, 1-flowered. Flowers 
nearly 1 in. in diameter, white, veined with red or purple. Cold 
woods N. 
2. O. violacea, L. VioLteT Woop-sorreLt. Perennial from a 
bulbous root, stemless. Leaves long-petioled; leaflets inversely 
heart-shaped, sometimes slightly downy, often with a dark zone 
near the middle. Scapes usually longer than the petioles, umbel- 
lately 4-10-flowered; pedicels slender. Flowers violet-purple, nod- 
ding. Petals obtuse, 2-3 times as long as the sepals; scapes and 
petioles 4-5 in. long. Common in rich woods.* 
[The forms with small yellow flowers, hitherto referred to O. cor- 
niculata, belong to several nearly related species too difficult for the 
beginner. ] 
