SAXIFRAGA. 



flower-stems are short and very numerous indeed, most profusely 

 branched, carrying sometimes as many as fifty stars of white, creamy- 

 based, broad-petalied, clawloss, and three-nerved. In nature this is 

 a non-calcareous plant from the steep screes and cliffs of the Eastern 

 Pyrenees ; in the garden it is unknown, eveiy sort and kind of large 

 Mossy being issued under the name of this rare delicacy (of which 

 some six varietal forms are now propounded by Spanish botanists), 

 so readily to be known by the five little narrow blunt fingers of its 

 green foliage, perfectly hairless, yet aromatic -sticky. 



S. perdurans is quoted under S. ajugaefolia. It is a pleasant, easy, 

 and valuable Mossy of deep emerald foliage. 



S. perpusilla is a microscopically tiny thing, forming a tuft of minute 

 concave green leaves, smooth except for a fringe of white hairs. The 

 flowers are yellow, arising on stems of a quarter of an inch. (Donkiak 

 in S'kkim.) 



S. petraea, Pon = S. aquatica aprica, q.v. 



S. petraea, L., is an annual Tridactylite with large much-divided 

 hairy foliage more like that of a field-buttercup. The stem is leafy 

 and lonely, standing or flopping, and carrying a shower of white 

 blossoms. It is a rare occurrence on the damp limestones of the 

 Eastern Alps, but an even rarer one in gardens — and deservedly so. 



S. x Petraschii stands at the head of all the white-flowered Kabschia 

 hybrids, as do S. Paulinae and 8. Faldonside at the head of the yellow 

 ones. The tuft is only slightly glaucous, and the rosettes are made 

 up of spreading narrow leaves keeled on the under-side, and acute 

 at the tip. The flower-stems are about 2 or 3 inches high, yellowish, 

 leafy, and very numerous, each carrying three or four very large and 

 brilliant white flowers. The parents are S. marginata and S. torn- 

 beanensis — the former having contributed the number of blooms and 

 shoots, with the smooth green tip of the leaves on the stems, which 

 are otherwiso glandular ; S. tombeanensis assists the fat look of the 

 spreading foliage, and adds size even to S. marginata's blossoms. The 

 hybrid is a most excellent and hearty grower, forming beautiful cosy 

 cushions, adorned with a profusion of noble pure-white candours 

 unusually abundant and brilliant even among Kabschia s. 



S. planifolia= S . muscoeides, q.v. 



S. porophylla, Bert., of the Apennines and Abruzzi, is the red- 

 flowered Engleria which passes into the Balkans as S. Federici Augusti, 

 Bias. It is, in both forms, an extension of S. media, with rosettes 

 and columns of overlapping broad and pointed glaucous-grey thick 

 leaves, with three pairs of lime-pits on each side of their upper surface 

 along the rim. But if the name Federici Augusti is, as Halaczy 



(1,996) 305 II. — u 



