630 3.85. Geranium. 66. GER ANIE^. PL ex. thai. 



Stem hirsute; hairs bent down; sepales 3-ribbed ; petals 

 purple ; anthers purple ; arilles scarcely keeled, hairy ; hairs 

 spreading; seeds reticulately dotted. 



&. majus. Plant large. 

 Geranium columbiniim maximum, foliis disseetis, Rail Syn. 360, 13. 



B. Balsamine^. Capsule 3-celIed, many-seeded; peri- 

 sperm ; coradum straight ; radicle above. 



III. 386. IMPATIENS. Dodonaus. Touch-me-not. 

 Calyx 2-leaved, very small ; petals 4, hypogynous, irre- 

 gular, unequal; upper petals arched, lower with a short 

 spur ; stamens 5 ; anthers united ; capsule oblong, 5-celled, 

 S-valved, many-seeded ; valves twisted spirally, opening 

 elastically. 



Impatiens palustris. Marsh touch-me-not. 



Joints of the stem swelled ; leaves ovate, obtusely ser- 

 rated ; peduncles many-flowered, solitar3% 



Balsamine lutea, sive Noli me (angere, Raii Syn. 316. 

 Persicaria siliquosa, Ger. em. 446, 4. 



Mercurialis sylvestris, Noli me tangere dicta, sive Persicaria siliquosa, 

 Park. 296, 



Impatiens Noli tangere, Lin. S. P. 1329. 

 Yellow balsam. Quick in hand. 



Damp fields ; annual ; August. 



Herb juicy, pale, pellucid, bald, much branched ; leaves 

 alternate ; peduncles axillary, 3 or 4-flowered ; jiowers yel- 

 low, dotted with red; spur turned back at the tip. — Plant 

 acrid. 



C. OxALiDEiE. Capsule 5, many-seeded ; seeds covered 

 with an arille; perisperm fleshy; corculum straight, central; 

 radicle above ; cotyledons leaflike. 



IV. 387. OXALIS. Dioscorides. JVood-sorrel. 

 Calyx persistent, 5-parted; petals 5, hypogynous, equal, 



regular; stamens 10 ] filaments nearly joined at bottom, al- 

 ternately shorter ; anthers free ; capsule short, oblong, 

 5-sided, 5-celled ; cells 1 or many-seeded. 



1. Oxalis vulgaris. Common wood-sorrel. 



Root toothed, scaly ; stem ; peduncles radical, longer 

 than the leaves, 1-flowered; leaves ternate, reverse-heart- 

 >hape, hairy ; style as long as the interior stamens. 



