PENTANDRIA PENTAGYNIA. 343 



HAB. Dry woods and hills sides. July. Shrub 48 feet ligk ; 

 Leaflets dark-green, 56 pairs ; berry red, hairy. 



R. Vernlx . very smooth ; leaflets in many pairs, oval, abruptly acu- 

 minate, entire ; panicle loose, flowers dioecious. 



HAB. Swamps. June July. A small tree ; leaflets 5 pairs, subset- 

 sile ; panicles clustering ; berry smooth, whitish. 



* * Leaves ternate. 



R. Toxicodendron : stem erect ; leaflets broad-oval, entire or sinuate- 

 dentate, subpubescent beneath ; flowers dioecious, in sessile axillary 

 racemes. 



HAB. Dry woods. June July. Shrub 1 3 feet high, smooth ; 

 leaves shining above ; berry smooth. 



b. radicans : stem climbing. 



HAB. Woods and hedges. Stem climbing very high. 



151. STAPHYLEA. Bladder-nut. 



S. trifolia : leaves ternate. 



HAB. Rocky hills. May. Shritb 6 10 feet high; inpend. racemes 



greenish-white ; capsule large. 



TETRAGYNIA. 

 152. PARNASSIA. Grass of Parnassus. 



P. caroliniana : radical leaves orbicular-ovate, cordate ; nectaries 3- 

 bristled. 



HAB. Boggy woods. August September, "2J. ; leaves mostly ra- 

 dical, (m long petioles ; flower solitary, terminal, yellowish white 



PENTAGYNIA. 

 153. ARALIA. 



A. nudicaulis : nearly stemless ; leaf solitary, triquinate ; scape naked, 

 shorter than the leaf; umbels few. 



HAB. Among rocks. June July. Root thick, creeping ; petiole 

 long ; leaflets oval, serrate ; scape \-flowered, long, 3-umbelled ; 

 flower greenish 



A. racemosa : stem herbaceous, branched ; petioles 3-parted ; parti- 

 tions ternate and quinate; umbels compound in axillary pani- 

 cles. 



HAB. Rocky woods. July Aug. 1J-; root thick, aromatic; stem 

 3 4 feet high ; umbel num. 

 30* 



