368 LINACEAE 
r ‘OXALIS me 
Characters as above. 
Leaves and flower-stems directly from the rootstock. 
Flower-stem one-flowered = . . = =» © « « « « « QO}. Acetoseila 
Flower-stem several-flowered . oe a ed 2S a OSS aolocen 
Leaves and flower-stems not from the rootstock. 
Stipules conspicuous =. . 9. : 3 = = = « «= = (QO. ‘cormculoia 
Stipules not conspicuous . .. . So ain te SS ees Oza 
1. O. Acetosella, L. (Fig. 11, pl. 84.) Wuite Woop-sorreL. Herbs, 
2 to 6 in. high; leaves all from the base. Rootstock creeping and scaly. 
Flower stem from the root, one-flowered; petals white with reddish veins. 
Moist woods. May-July. 
2. ©: violacea, Us (Pig -10; pi. 84.) Vioret Woop-sorreL. Root 
bulbous, scaly. Flower stems from root, with from 3 to 12 flowers, 
which are rose-purple or nearly white. Rocky woods. May-June. 
3. O. corniculata, IL. Yerrow Woop-sorret. Stems branching, 
mostly precumbent, 1 to 6 in. long. Flowers yellow, 2 to 6 on a flower- 
stem. Pods linear. Stipules conspicuous. Less common than No. 4. 
Summer. 
4. ©. stricta, L. (Fig. 12, pl. 84.) Upricut Woop-sorren. Stems 
erect, stipules not conspicuous. Plant without hairs. Flowers yellow. 
Common in woods and fields. April-Oct. 
In addition to the above a considerable number of forms found in our 
area are reported as species by Dr. Small. 
Famity II].—LINACEAE. Fiax FAmMILy 
Herbs (always in our area), with alternate or opposite leaves 
which are simple, with borders entire, attached directly to the 
stem (sessile) and without stipules. Flowers regular, symmetri- 
cal, in our genus of 5 petals; sepals 5. Stamens 5 fertile, 5 sterile 
or suppressed, the fertile alternate with the petals. Ovary mostly 
of 5 cells. 
In our area we have only one genus. 
LINUM, L. 
Which has the characters of the family, 7. e., sepals 5, petals 5, longer 
than the calyx; stamens 5; styles 3 to 5. Seed capsule globular. 
Mowers) #DIWE. 4 tycihiel) “ef Sa lsig ssi ae. Prey Ne oP eo atte. cio hl ont. 55 Oa 
Flowers yellow. ; 
Flowers about 4 in. broad, stem striped or angular . . L. virginianum 
Flowers about 1/8 in. broad, stem not striped . L. medium 
Flowers about } in. broad, branches sharply angled or winged L. striatum 
Flowers 4 in. broad or more, stem angled with wings . . JL. sulcatum 
1. L. usitatissimum, L. (Fig. 1, pl. 85.) Frax. Linseep. Stem 
branching above, generally simple below, erect, about 12 to 20 in. high. 
Flowers bell-shaped, large, in loose clusters, each flower on a slender 
more or less elongated flower stalk. Sepals oval, sharply pointed. Found 
occasionally spontaneous. Introduced. Summer, 
2. L. virginianum, L. (Fig. 2, pl. 85.) StenpeR YELLOW FLAax. 
