RHEUM RUDBECKIA. 



217 



Blieum palmatum (Palmate Rhubarb). 

 Known at once by its deeply-cut 

 leaves ; 6 to 8 ft. high. Flowers, in 

 early summer ; greenish-white, sur- 

 rounding the branches in numerous 

 clusters^ and forming a sort of spike. 

 Leaves, of root, numerous, large, 

 rough, deeply cut into lobes, the lobes 

 cut into irregular pointed segments, 

 on long, round footstalks, becoming 

 gradually smaller near the top. Stem 

 erect, round, hollow, jointed, branched 

 near the top. China and Tartary. 



-In groups of tine-leaved hardy 



plants ; also suited for isolation with 

 such subjects as the Ferulas, in deep 

 rich soil. Division and seed. 



Ehexia virginica (Meadow Beauty). 

 A brilliant perennial, forming neat 

 little bushes ; 6 to 12 in. high. Flowers, 

 in summer; bright rosy -purple, in 

 cymose corymbs; petals 4, heart- 

 shaped, spreading in the form of a 

 cross, inserted with the 8 ochre-yellow 

 stamens at the top of the tube of the 

 calyx, which is urn-shaped and 4-cleft 

 at the apex. Leaves, oval or lance- 

 shaped, acute, opposite, entire, hairy, 

 3-nerved, about 2 in. long and | in. 

 broad; stems square, with wing-like 



angles. North America. In the 



artificial bog, or moist spots in the 

 lower part of the rock-garden, always 

 in very moist peat. Careful division. 



Khododendron Chamsecistus (Thyme- 

 leaved R.) A dwarf , tufted, evergreen, 

 much - branched shrub, with small 

 fleshy leaves about the size of those 

 of Helianthemum ; 6 in. high. Flowers, 

 in early summer ; of a beautiful pink 

 colour, 3 or 4 together, about the size 

 of those of Kalmia latifolia ; peduncles 

 1 in. long, reddish-brown ; corolla 

 wheel-shaped, 5-cleft, segments ovate ; 

 calyx 5-cleft, of the same colour as 

 the peduncles, segments acute ; sta- 

 mens 10. Leaves, oblong, stiffish, 

 ciliated at the edge, on short reddish 

 stalks. Calcareous rocks in the Tyrol. 



The rock - garden, in limestone 



fissures, in a mixture of equal parts of 

 peat, loam, and sand ; also in beds of 

 choice dwarf shrubs. Seed and layers. 



Kosa alpina pyrenaica (Small Pyre- 

 nean Rose). A beautiful little moun- 

 tain Rose, a variety of the Alpine 

 Rose, but much smaller. Flowers, in 

 summer ; of a fine rosy lake, each 

 bloom more than 2 in. across ; calyx 

 and flower-stalks covered with glan- 

 dular hairs. Leaves, oblong-elliptical, 

 toothed ; teeth glandular, distant. 



Pyrenees. The rock-garden, in dry 



poorish soil. Cuttings and seed. 



Kudbeckia californica (Californian 

 Cone-flower). A vigorous hardy peren- 

 nial, with a stout branching stem ; 5 

 to 6 ft. high. Flowers, in summer ; 

 golden-yellow, about 5 in. across, with 

 a dark brown conical centre more 

 than 2 in. high. Leaves, oval, pointed, 

 with an occasional lobe or tooth, 

 rough ; the lower ones 1 ft. long, and 

 6 in. across, attenuated into a stalk ; 

 the upper ones smaller and sessile. 



California. Back margins of the 



mixed border, shrubberies, or natura- 

 lization, in sandy loam. Seed or divi- 

 sion. 



Rudbeckia Drummondi (Drummond's 

 Cone-flower). R. columnaris. Obelis- 

 caria pulcherrima. A showy peren- 

 nial, 16 in. to 2 ft. high. Flowers, from 

 June to September ; florets of the ray 

 citron- yellow at the base and point, 

 purplish-brown in the middle, broadly 

 obdvate, slightly notched at the end, 

 about 1 iA. long, concave, twisted, 

 and reflexed ; in the place of the disk 

 is a cylindrical-conic receptacle more 

 than 1 in. long, closely covered with a 

 great number of brownish florets. 

 Leaves, alternate, pinnate, with linear 

 toothed divisions ; root-leaves not so 

 deeply cut. Whole plant rough, 

 slightly pubescent, of a greyish-green 



tint. Mexico. Borders, in sandy 



loam. Division and seed. 





