74 .21. OXALIDACEJ!. 



1., Impa'iiens Linn. Balsam. 



1. I. NoU-me-tan' gere (L.) ; 1. ovate coarsely serrate, pedun- 

 cles many-flowered solitary, spvr loosely recurved not emarffinate. 

 — a. V. 108. b. St. 5. 16. — -Fl. large, yellow spotted with orange. 

 St. 1---2 feet high, tumid at the joinings. — Damp woody places 

 in mountainous districts, rare. — A. VI.^IX. Yellow Balsam. 



E. S. I. 



*2. I. fuVva (Nutt.) ; 1. ovate coarsely serrate, peduncles 

 ahoiit 4-flowered solitary, spur closely reflexed emarr/inaie. — 

 K S. S. 2794. — Fl. orange-yellow spotted with red. Each ser- 

 rature of the 1. with a reflexed glandular tooth. St. 2 — 3 feet 

 high. — An American plant quite naturalized by the Wey and 

 other'rivers in Surrey, A. YIII. E. 



*3. /. parviflora (DC.) ; 1. elliptic serrate, ped. erect S — 12- 

 flowered, spur short straight. — Fl. small, yellowish. St. 6 — 18 

 in. high. L. very acute at both ends. — Waste places. A Rus- 

 sian plant now quite na,turalized. A. VII. — IX. E. 



Order XXI. OXALIDACE^. 



Sep. 5, ecjual, persistent, imbricate in the bud. Pet. 5, equal, 

 often cohering at the base, twisted in the bud. Stam. 10, more 

 or less monadelphous, those opposite to the pet. longer than the 

 others. Anth. 2-ceUed. Ovary 6-ceUed. Styles 5. Caps. 

 5 — 10-valved. Seeds several. Embryo straight, in cartilaginous 

 albumen. 



1. OxALis. Sep. 5, connected below. Pet. 5, often connected 

 below. Stam. 10, monadelphous, 5 outer ones shorter. 

 Styles 5. Seed with an elastic coat. 



1. Oxa'lis Linn. "Wood-Sorrel. 



1. O. Acetosel'la (L.) ; sfemlesx, rhizome creeping toothed, I. 

 temate, leaflets obcordate hairy, peduncle-s with 2 ' scaly bract? 

 at about the middle 1-flowered, caps, ovoid, seeds longitudinally 

 ribbed. — S. v. 199. — Fl. white with purple vein.s or rarely purple 

 or blue. Cor. about 4 times as long as the calyx. — Woods and 

 shady places. P. V. Wood-Sorrel. E. S. I. 



t2. O. corrdculdta (L) ; st. diffuse mith procumbent branches 

 pubescent, 1. ternate, leaflets obcordate, stipules oblong united to 

 the base of the petioles, peduncles about 2-flowered shorter than 

 the leaves,, partial fruitstallcs reflexed, caps, narrowly oblong, 



