SAXIFRAGACEJE. (SAXIFRAGE FAMILY.) 1G9 



Tribe IV. RIBESIE^E. Shrubs. Leaves alternate and simple, with stipules adnate 



to tlie petiole or wanting. Fruit a berry. 

 14. Kibes. Cal\.\-tube adnate to tiie 1-celled ovary. Placentas 2, i»arictal, many-see<le<i. 



1, A ST I LB E, Don. False Goatsijkaki>. 



Flowers dicjeciously poIygamoiLs. Calyx 4-5-parted, 8niall. I'etals 4-5 

 spatulate, small, withering-persistent. Stamens 8 or 10. Ovary 2-celln(l, almost 

 free, many-ovulcd ; styles 2, short. Capsule 2<-elled, separating into 2 follicles, 



each ripening few seeds. Seed-coat loose and thin, tapering at each end. 



Perennial herbs, with twice or thrice ternately-compound ample leaves, cut-lohrd 

 and toothed leaflets, and small white or yellowish flowers in spikes or racemes, 

 wliich are disposed in a compound panicle. (Name composed of d- privative 

 and cttiA/Qtj, a briylit surface, because the foliage is not shining.) 



1. A. dec^ndra, Don. Somewhat pubescent (3-5° high); leallcts 

 mostly heart-shaped ; petals minute or wanting in the fertile flowers ; stamens 

 10. — Rich woods ; mountains of S. W. Va. to N. C and Ga. Closely imitating 

 Spiraja Aruucus, but coarser. 



2. SAXIPRAGA, L. Saxifrage. 



Calyx either free from or cohering with the base of the ovarv, 5-clcft or 

 parted. Petals 5, entire, imbricated m the bud, commonly deciduous. Sta- 

 mens 10. . Styles 2. Capsule 2-beaked,2-celled, opening down or between the 

 beaks, or sometimes 2 almost separate follicles. Seeds numerous, with a close 

 coat. — Chiefly perennial herbs, with the root-leaves clustered, those of the stem 

 mostly alternate. (Name from saxuin, a rock, audy'm«^o, to break; manv 

 species rooting in the clefts of rocks.) 

 * Stems prostrate, m tufts, leaf/; leaves opposite; cal^jx free from the capsule. 



1. S. oppositif61ia, L. (Mountain Saxifrage.) Leaves fleshy, ovate, 

 keeled, ciliate, imbricated on the sterile branches (1-2" long): flowers soli- 

 tary, large; ])etals purple, obovate, much louger than the 5-cleft-calyx. — 

 Rocks, Willoughby Mountain, Vt., and northward, (Eu.) 



* * Stems ascending : leaves alternate; cali/x co/ierent below with the capsule. 



2. S. rivul^ris, L. (Alpine Brook-S.) Small, stems weak, 3-5- 

 fiowered; lower leaves rounded, 3-b-/olted, on slender petioles, the upper lan- 

 ceolate; petals uhite, ovate — Alpine region of tiie White Mts., to Lab. (Mn.) 



3. S. aizoides, L. (Yellow Molntain-S.) Low (3-5' high), in tufts, 

 with few or several corymbose flowers; leaves linear-lanceolate, entire, flesh v, 

 distantly spinulose-ciliate ; petals yellow, spotted with orange, oblong. — X. \'t. 

 to S. W. New York, N. Mich., and northward. June, (I>u.) 



4. S. tricuspid^ta, Ketz. Stems tufted (4 - 8' high), naked aliove ; flow- 

 ers corymbose , leaves oblong or spatulate, with 3 rigid sharp teeth at the summit ; 

 petals ohovate-oblong, yellow. — Shore of L. Superior, and northward. (Ku.) 



» * * Leaves clustered at the root ; scape mang flowered, erect, clammif-pubescent. 

 ■*- Petals all alike. 



5. S. Aizbon, Jacq. Scape 5 - 10' high ; leaves persi.stnit, thick-, sfmtulate, 

 ivith white cartilaginous toothed margins; calyx partly adherent; petals ol> 



