PI ex, cal. 59. AGRIMONIACE^. 349. Poterium. 575 



Cal. 4-lobed ; pet. ; siam. 30 ; 

 stigma radiated Poterium. SiQ. 



Cal. 4-lobed ; pet. ; stam. 4 ; 

 stigma simple Sanguisorba, 350. 



Cal. 4-cut ; pet. ; stam. 4 ; 

 Iractece of the calyx 4 Alchemilla. 351. 



Ca/. 5-lobed ; pe/. 5 ; ^^aw. 12 or 10 Agrimonia. 352. 



I. 349. POTERIUM. Dioscorides. Burnet. 

 Flowers unisexual ; calyx 4-lobed, coloured, 3-scaled on 



the oniside', petals 0. — Male. Stamens 30. — Fem. Ovaries 2; 

 styles 1 or 2; stigmata radiated; akenia 2, immerged in 

 the hardened angular tube of the caljrx. — 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. 1043, 1. 

 Pimpinella vulgaris seu minor. Park. 582. 

 Poterium Sanguisorba, Lin. S. P. 1411. 

 Pimpinella Sanguisorba, 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-^lumet. 

 Flowers hermaphrodite ; calyx coloured, 4-lobed ; scales 2 



at the base ; petals ; 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. 382. 

 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. 



