98 DICOTYLEDONOUS. 



merous in loose elongated panicles, bracteate. Petals spatulate, small. Seeds 

 small numerous. Alum root. 



White. % April— May. Rich damp soils common. 1-2 feet. 



2. H. Caulescens. Scape hairy at the base, 2-leaved or naked. Leaves 

 cordate, 5-7-lobed, lobes acute, glabrous, unequally toothed, ciliate. Flowers 

 in slender, loose panicles. Petals linear spatulate, about the length of the 

 stamens, segments of the calyx short hairy. 



White. % May-~June. Mountains. 



3. H. HispiDA. Scape glabrous, ] -2-leaved. Leaves obtusely 5-7 iobed, 

 with broad mucronate, teeth, hispidly ciliate, upper surface hispid, lower gla- 

 brous. Plowers few. Petals unguiculate, broadly spatulate. Stamens exserted. 



Violet purple. % May — June. Mountains. 



Genus IV. ASTILBE. {Tiarella of Elliott. 



Calyx campanulate, S-parted persistent. Petals 5, inserted 

 on the calyx, spatulate, marcescent. Stamens 10, exserted. 

 Anthers cordate, 2-celled on subulate filaments. Capsule 2- 

 celled, dehiscing longitudinally along the inside of the car- 

 pels, which separate after maturity. Perennial plants, with 

 compound leaves, leaflets serrate. Flowers in crowded pani- 

 cles, bracteate. 



1. A. Decakdra. Stem herbaceous, angular, branching. Leaves biter- 

 nate, leaflets cordate, oblique, Iobed, lobes serrate, lower surface and petioles 

 glandular, pubescent. Flowers in axillary and terminal panicles; segments 

 of the calyx ovate. Petals hnear-spatulate, longer than the calyx. Carpels 

 united at the base. 



Yellowish white. % June— Aug. Mountains. 



Genus V. CHRYSOSPLENIUM. 



Calyx 4-cleft ; segments obtuse, colored within. Petals 

 none. Stamens 8-10, filaments short, subulate. Anthers 

 reniform, 2-celled. Styles 2, Caj>5wZe 1-celled, with 2 parie- 

 tal placentge, cohering to the tube of the calyx. Seeds nu- 

 merous. Herbaceous plants, with fleshy crenate leaves. 



\. C. Americanum. iSfem slender, decumbent, dichotomous above. Leaves 

 roundish-ovate, crenate, the upper ones alternate, the lower ones opposite. 

 P/owers sessile, scattered. Seeds hispid, reddish brown. 



Water Carpet. Golden Saxifrage. 

 Yellowish green. %. April— May. Mountains. 



Genus VI. LEPUROPETALON. 



Calyx 5-parted, with ovate obtuse lobes ; tube turbinate, 

 cohering to the lower portion of the ovary. Petals 5, minute, 

 spatulate, persistent. Stamens 5, with short filaments. Cap- 

 sule 1-celled, many seeded, globose. Seeds numerous. A 

 small annual herb, growing in tufts. Leaves alternate, spat- 

 ulate, entire, marked with brownish dots. Flowers terminal. 



1. L. Spathulatum. »S<em glabrous, somewhat succulent, slightly angled, 



