SAXIFRAGACEjE. (SAXIFRAGE FAMILY.) 145 



6. iHITELLA, Tourn. Mitre-wout. Bishop's-Cap. 



Calyx short, coherent with the base of the ovary, 5-cleft. Petals 5, slender, 

 pinnatifid. Stamens 10, included. Styles 2, very short. Pod shon, 2-beaked, 

 1-celled, with 2 parietal or rather basal several-seeded placenta), 2-Talved at the 

 summit. Seeds smooth and shining. — Low and slender perennials, with round 

 heart-shaped alternate leaves on the rootstock or runners, on slender petioles; 

 those on the scapes opposite, if any. Flowers small, in a simple slender raceme 

 or spike. (Name a diminutive from pirpa, a mitre, or cop, alluding to the form 

 of the young pod.) 



1. HI. dipiiyllu, L. Hairy, leaves heart-shaped, acute, somewhat 3-5 

 lobed, toothed, those on the many-flowered-scape 2, opposite, nearly sessile. — Hill- 

 sides in rich woods, YV. X. England to Wisconsin and Kentucky. May. — 

 Flowers white, in a raceme G'-8' long. 



2. M. il lid ;i, L. Small and slender ; leaves rounded or kidm y-jl/rm, deeply 

 and doubly creaate ; scape usually leafless, few-flow, red, rery Blender (4'-C high). 

 {M. cordifolia, Lam. M. prostrata, Michx.) — Deep moist woods with m 

 Maine to Wisconsin and northward. May -July. — A delicate little plant, 

 shooting forth runners in summer. Blossoms greenish. 



7. TIAKELLA, L. False Mitkl-wokt. 



Calyx bell-shaped, nearly free from the ovary, 5-parted. P tale 5, with claws, 

 entire. Stamens [0, long and slender. St,': j 2. Pod men: us, 1- 



celled, 2-valved, the valves ancqnal. Seeds few, at the base of each parietal 



placenta, globular, smooth. — Perennials: flowers whit''. S > a diminutive 

 from ruipa, a tiara, or turban, from the form of the pod, or rather pistil, which 

 is like that ofMitella, to which the name of diitre-wori properly belongs.) 



1. T. cordifolia, L. Leaves from the rootstock or summer runners 

 heart-shaped, sharply lobed and toothed, sparsely hairy above, downy beneath; 

 scape leafless (5'- 12' high) ; raceme simple; petals oblong. — Rich rocky wood. ; 

 common from Maine to Wisconsin, northward, and southward along the moun- 

 tains. April, May. 



8. CIIRYSOSPI^NIl UI, Tourn. Golden Saxifrage 



Calyx-tube coherent with the ovary; the blunt lobes I - .">. yellow within. 

 Petals none. Stamens 8-10, very Bhort, inserted on a conspicuous disk. 

 Styles 2. Pod inversely heart shaped or 2-lobed, ihort, 1-celL d, 



with 2 parietal placenta', 2-valved at the top, many-seeded. — Low and small 

 smooth herbs, with tender succulent leaves and small solitary or lcafy-cvmed 

 flowers. (Name compounded of xpwos, golden, and o-ttXtjv, the spleen, probably 

 from some reputed medicinal qualities.) 



l. C\ America mini, Schwein. Stems slender, diffusely spreading, 

 forking ; leaves principally opposite, roundish or somewhat heart-shaped, ob- 

 scurely crcnatc-lobed ; flowers distant, inconspicuous, nearly sessile (greenish 

 tinged with yellow or purple), y. — Cold wet places ; common, especially north- 

 ward. April, May. 



13 



