OXALIDE-dE. 69 



HAS. Damp grounds. Can. to Car. W. to Miss. Aug. {& 

 Stem 2 feet high, much branched. Flowers pale yellow, larger 

 than the next. Snap-iceed. Touch-me-not. 



2. I. fulva Nutt. : peduncles solitary, 2 4-flowered ; leaves rhombic- 

 ovate, obtiise, mucronate-dentate ; calcarate petal longer than the 

 rest ; spur emarginate, resupinate ; flowers with crowded spots. 

 /. biflora Pursh.L noli-tangerc, var. Mich. 7. maculata Muhl. 



HAB. Wet grounds. Can. to Car. Aug. ^.Flowers deep 

 yellow, spotted, smaller and less numerous than in the former, 



ORDER XXIX. OXALIDE^. De Cand. Lind. 



Sepals 5, sometimes slightly cohering at the base, persis- 

 tent, equal. Petals 5, hypogynous, equal, unguiculate, with 

 a spirally twisted aestivation. Stamens 10, usually more or 

 less monadelphous, those opposite the petals forming an inner 

 series and longer than the others ; anthers 2-celled, innate. 

 Ovary 5-angled, 5-celled ; styles 5, filiform; stigmas capitate 

 or somewhat bifid. Fruit capsular, membranous, with 5 

 cells, and from 5 to 10 valves. Seeds few, enclosed within 

 a fleshy integument, which bursts elastically. Albumen be- 

 tween cartilaginous and fleshy ; embryo straight, as long as 

 the albumen, with a \ongradicle pointing to the hilum, and fo- 

 liaceous cotyledons. 



Herbs, undersnrubs or trees. Leaves alternate, mostly 

 compound. 



1. OXALIS, Linn. 



Sepals 5, free or united at base. Petals 5. Stamens 10 ^ 

 filaments monadelphous at base, 5 outer ones shorter. Styles 

 5. Capsule pentangular, oblong or cylindric. 



Decandria. Pentagynia. 



* Stemless. 



1. O. acetosella Linn. : stemless ; root dentate, creeping ; scape I- 

 flowered, longer than the leaves, with two small bracts above the mid- 

 dle ; leaves ternate, dilated-obcordate, pilose ; petals oval, obtuse ; 

 styles as long as the inner stamens. 



HAB. Mountain woods. Can. N. Y. and Penn. June. 24!. 

 Scape 3-4 inches long. Flowers large, white, with red veins. 

 Petals slightly emarginate. This is the Sluimrock of the Irish. 



Common Wood Soiret. 



2. O. violacea Linn. : stemless ; root squamous ; scape unbellifer- 

 ous, 3 9-flowered ; flowers nodding ; leaves ternate, obcordate. 

 smooth ; styles shorter than the outer stamens. 



