612 SAXIFRAGA. tCLASS X. ORDER II. 



point. Tnjlorescence a bnuicbed panicle, of a few erect or drooping 

 flowers, rarely only a solitary flower, the branches long and slender, or 

 short and stout, with one or two linear bracteas at the base. Calyx 

 half superior or more, the limb of five ovate pointed or ovate lanceolate 

 erect segments, more or less clothed with short glandular hairs. 

 Corolla of five obovate or oblong white petals, obtuse, or rarely (not 

 permanently) notched, marked with three veins, the two lateral some- 

 times branched, but united at the base in a palmated manner, and at 

 least as long again as the calyx segments. Stamens on slender fila- 

 ments, five longer than the other, anthers yellow, roundish, of two cells. 

 Styles scarcely spreading. Stigmas spatulate, somewhat downy. 

 Capsule broadish, ovate, obtuse, many seeded. 



Habitat. — a.. Frequent in mountainous districts, especially in a 

 limestone country. /3. Frequently with the former in Wales, Scotland, 

 and Ireland, y. Welsh mountains. — Mr. M^Nab. ^. Mouutaius of 

 Scotland and Ireland. — Mr. J. T. Machay and Mr. G. Don. 



Perennial ; flowering from May to July. 



This is an extremely variable species, as will be seen from the above 

 descriptions ; indeed no two authors seem to agree as to what are the 

 limits of the species, nor are we by any means certain that the above 

 arrangement will be found unvariable ; but as all the other parts of the 

 plant, with the exception of the apex of the leaves, and their lobes 

 being bristle pointed, are variable, but without being prominently so, 

 we have thought it the most simple plan to place tbem all under one 

 species, until we have a more intimate knowledge of them. 



It is frequently cultivated in gardens as a border flower, or on rock 

 work, forming close tufts of evergreen leaves, and generally flowers 

 freely for several months during the summer. 



14. S. Icetevi'rens, Don. (Bright Green Alpine Saxifrage.) " Trail- 

 ing shoots procumbent, elongated; leaves five or three parted; seg- 

 ments linear, acute ; calyx segments lanceolate, raucronate ; petals 

 spatulate, emarginate." — Hooker. 



D. Don in Trans, of Linn. Soc, v. 13. p. 451.— English Flora, v. 2, 

 p. 280.— Hooker, British Flora, v. 1, p. 200. — Lindley, Synopsis,p. 70. 



"Herb of a very bright green, densely tufted, and very smooth 

 before flowering; afterwards loosely spreading, with long trailing 

 shoots, besprinkled with long hairs, without axillary buds. Stems few, 

 erect, smooth, three inches high, bearing a few leaves, and about three 

 floivers, rarely only one. The radical leaves have five segments, those 

 of the shoots three, all linear, acute, recurved at the point, those on the 

 lower part of the stem are five-cleft, on the upper undivided, lanceolate, 

 and pointed. Floivers white, bell-shaped, drooping in the bud. Flower 

 stalks axidi calyx downy and viscid ; segments of the latter lanceolate, 

 three ribbed, with recurved points. Petals with straight simple green 

 ribs, united above the base." — Smith. 



