SAXIFRAGACEffi. ' 150 



2. S. Pennsylva'nica. 



Leaves oblong-lanceolate, hairy, denticulate ; stem naked ; peduncles alter- 

 nate, witli close cymes, forming a diffuse panicle. A common plant, much 

 laro-er than the foregoing, growing in wet meadows. Leaves all radical, large 

 and fleshy, pale green, 5 — 8 inches long, tapering into the petiole. Scape 

 2 — 3 feet high, gross, hollow, hairy and viscid, erect, with greenish yellow 

 flowers without beauty. May. Pennsylvuuian Saxifrage, 



2. HE U' CHER A. 

 Calyx 5clert,the segments obtuse; corolla inferior, of 5 small 

 petals inserted into the margin of the calyx ; capsule 2 beaked, 

 2-celIed, many-seeded. 



Named for Ilcucher, professor of medicine at Wirtemberg, Germany, and 

 a botanic author. — Perennial herbs, with radical leaves. 



H. America'na. 



Viscid- pubescent; scape and leaves roughish ; leaves whh roundish lobes, 

 dentate; teeth dilated, niucronate; panicle dicliotomous; calyx short, obtuse; 

 petals as long as the calyx, spathulate; stamens much exserted. Grows in rocky 

 shades. A neat plant, with radical leaves on long petioles, and a scape 2 feet 

 long, healing a long, forked panicle of purple flowers. Jn. Jl. Per. — The 

 root is astringent, hence the plant is called Mum-root. 



3. CIIRYSOSPLE'NIUM, 



Calyx lobes 4 — 5, colored within; petals ; stamens 8 — 

 10; capsule 2-beaked or lobed at the summit, 2-valved, one- 

 celled, many-seeded. 



Gr. XQ'~"^oi, gold, and a-rXriVj the spleen ; on account of its medicinal qual- 

 ities. Cal. very short, of 4 oval seg., the opposite ones narrower. Fil. very 

 short. Ova. half-inferior, ending in 2 awl-shaped styles, the length of the 

 stamens. — Small, aquatic herbs. 



C. AmERICA'NUM. C. oppositifolium. 



Leaves opposite, roundish, slightly crenate, tapering to the petiole. A small 

 plant, in springs and streams, spreading upon the muddy surface. Stem 

 pquare, 3 — G ini-hes long, divided in a dichotomous manner at top. Leaves 

 opposite, half an inch in length, smooth. Calyx 4-cleft, greenish yellow with 

 purple lines. Corolla 0. Stamens 8, very short, with orange-colored anthers, 

 which are the only conspicuous part of the flower. Tlie terminal flower is 

 sometimes decandrous. Apr. May. Golden Saxifrage. 



4. TIARE'LLA. 



Calyx 5-parted. the lobes obtuse ; petals 5, entire, the claws 

 inserted on the calyx ; stamens 10 ; capsule 1-celled, 2-valvecJ, 

 one valve larger. 



Lat. tiara, a mitre or some other head-dress; from the resemblance of the 

 capsule. Cal. segments valvate in estivation, deep, ovate, acute. Stamen.«( 

 longer than cor., inserted into the cal. Ova. cloven, ending in 2 very short 

 stvles. — Perennial herbs. 



