PL ex. thai. 66. GERANIEiE. 387. Oxalis. 631 



Oxys alba, Raii Syn. 281, » I ; Ger. em. 120, 1. 

 Trifoliiim acctosiiin vulgare. Park. 746. 

 Oxalis Acetosella, Lin. S. P. 620. 



Wood sowr. Sowr trefoil. Stubwort. Alleluja. Sorrel du bois. Cuckoo 

 bread. 



Woods ; perennial ; April and May. 



Root flesh}', horizontal ; leaflets slightly petioled, coloured 

 beneath, edge not cut ; scape bracteated above the middle ; 

 petals flesh-coloured with red lines ; seeds 2 in each cell. — 

 Juice contains much oxalate of potash, which renders it 

 gratefully acid, and may be separated by crystallization ; 

 leaves in infusion cooling, and make an agreeable whey. 



|3. ccBndea. Plant small, rather villous ; petals bluish 



purple. 



Oxys q. Trifolium acetosutn vulgare, flore purpureo Merreti, Dillen in 

 Raii Syn,28\,*2. 



2. Oxalis stricta. Stiff" wood-sorrel. 

 Stem upright, branched ; peduncles umbell-bearing, shorter 



than the petioles; leaves ternate, reverse-heartshape; petioles 

 half-round ; stipules ; petals blunt ; style as long as the 

 interior stamens. 



Oxalis stricta, Lin. S. P. 



Cultivated grounds, naturalized,- annual; July and Aug. 

 Leaves rather bald ; corolla yellow. 



3. Oxalis corniculata, Horn wood-sorrel. 

 Stem branched trailing, rooting; peduncles rather um- 



belled, shorter than the petioles; leaves ternate, reverse 

 heartshape ; petioles stipuled ; styles as long as the interior 

 stamens. 



Oxys lutea, Ger. em. 1202. 

 Oxalis corniculata, Lin. S. P. 623. 

 Oxalis pusilla, Salisb. Tr, Lin. Soc. 2, 243. 

 yellow wood-sorrel. 



Ruins and dunghills ; naturalized ? annual ; May to Oct. 



Stem roundish, reddish; leaves hairy; stipules growing 

 to the petiole ; flowers small ; corolla yellow ; cells of the 

 capsules many-seeded. 



Fam. II, 67. HYPERICINE^. 



Calyx 1-sepaled, 4 or 5-parted; petals 4 or 5, hypogy- 

 nous ; stamens hypogynous, many, indefinite, polyadelphous; 

 ovary free ; styles 3 to 5 ; fruit many-celled, rarely fleshy 

 and 1 -celled, mostly capsular, 3 to 5-celled, 3 to 5-valved; 



