PL ex. cal . 59. AGRIMONIACEiE. 349. Poterium. 575 
Cal. 4-lobed; pet. 0 ; stam. 30; 
stigma radiated . Poterium. 349. 
Cal. 4-lobed ; pet. 0 ; stam. 4; 
stigma simple Sanguisorba. 350. 
Cal. 4-cut ; pet . 0 ; stam. 4-; 
bractece of the calyx 4 Alchemilla. 351. 
Cal. 5-lobed; pet. 5; stam. 12 or 10 Agrimonia. 352. 
I. 349. POTERIUM. Dioscorides. Burnet. 
Flowers unisexual ; calyx 4-lobed, coloured, 3-scaled on 
the outside ; petals 0. — Male. Stamens 30. — Fem. Ovaries 2; 
styles 1 or 2; stigmata radiated; akenia 2, immerged in 
the hardened angular tube of the calyx. — Leaves pinnate.; 
flowers capitate. 
Poterium minus. Small burnet. 
Stem angular, spineless; stamens much longer than the 
calyx. 
Sanguisorba minor, Raii Syn. 203, 1. 
Pimpinella hortensis, Ger.em. 1045, 1. 
Pimpinella vulgaris seu minor, Park. 582. 
Poterium Sanguisorba, Lin. S. P. 1411. 
Pimpinella Sauguisorba, Gcertner Fr.et Sem. 1, 162. 
Garden burnet. 
Chalky soils ; perennial ; July. 
Root woody ; leaflets roundish, serrate, bald ; peduncles 
naked, terminal ; flowers in heads ; upper flowers female, 
stigmata exserted; lower flowers male. 
II. 350. SANGUISORBA. Fuchs. Great-burnet. 
Flowers hermaphrodite; calyx coloured, 4-lobed; scales 2 
at the base ; petals 0 ; stamens 4 ; ovaries 2 ; stigmata sim- 
ple ; akenia 2, immersed in the persistent tube of the calyx. 
— Leaves pinnate ; flowers in heads, upper flowers expand- 
* ing first. 
Sanguisorba officinalis. Shop great-burnet. 
Herb bald ; spine ovate ; stamens as long as the calyx. 
Sanguisorba major flore spadiceo, Raii Syn. 203, 2. 
Pimpinella sylvestris, Ger. em. 1045, 2. 
Pimpinella major vulgaris, Park. 582. 
Sanguisorba officinalis, Lin. S. P. 169. 
Wild burnet. 
Damp fields and pastures; perennial; June and July. 
Stem 2 feet high, branched, rather naked ; leaflets heart- 
shape, crenate. 
