276 38. Acetosa. 15. POLYGONS. 
PL ex. man. 
VI. 38. ACETOSA. Brunsfel. Sorrel. 
Perigonium 6-parted ; 3 inner lobes persisting, girding 
the fruit, not tubercled at bottom ; 3 outer smaller, re- 
flected ; stamens 6 ; styles 3 ; stigmata 3 ; thecidium 3-angu- 
dar; corculum lateral, peripherical. — Root fibrous or creep- 
ing ; kerb acid ; flowers in half whirls, racemose or pa- 
nicled, hermaphrodite or unisexual. 
2. Acetosa pratensis. Meadow sorrel . 
Leaves oblong, sagittate, with barbs turned backwards ; 
root fibrous ; flowers unisexual ; valves not cut. 
Acetosa pratensis, C. Bauh. Pin. 114; Miller Did. 
Lapathum acetosum vulgare, Raii Syn. 143, 12. 
Oxalis, sive Acetosa, Ger.em. 396, 1. 
Acetosa vulgaris. Park. 742. 
Rumex Acetosa, Lin. S. P. 481. 
Lapathum acetosum, Scopoli Cam. 2, 438. 
Common sorrel. Garden sorrel. Sorrel dock. 
Fields and pastures; perennial; June. 
Stem leafy, 3 feet high; radical leaves petiolate, blunt; 
upper sessile, pointed ; thecidium shorter than the valves. 
— Root dried gives a beautiful red colour to water, as if 
changed to wine; leaves acid, used in salads and sauces; 
expressed juice cleared by settling, and evaporated, yields 
an essentia] salt, sold for salt of lemons, and used to take 
iron-moulds out of linen. 
ft Alpina. Herb much larger ; thecidium longer than the 
valves. 
Lapathum q,. Acetosa montana maxima C. Bauhini, Dillen in Raii Syn. 
143, 12. 
2. Acetosa repens. Creeping sorrel. 
Leaves lanceolate, hastate, barbs acute, recurved; rhiz'oma 
creeping; flowers unisexual, valves not cut. 
Lapathum acetosum repens lanceolatum, Raii Syn. 143, 13. 
Oxalis tenuifolia, Ger. em. 379. 
Acetosa minor lanceolata, Park. 744. 
Rumex Acetosella, Lin. S. F. 481. 
Acetosa tenuifolia, Moench Meth. 357. 
Rumex infestum, Salisb. Prod. 258. 
Sheep's sorrel. Sheep’s dock. 
Barren sandy places ; perennial ; June and July. 
Stem 12 inches high ; radical leaves hastate; stem leaves 
lanceolate or hastate. 
