15 
D. M. ANDREWS, BOULDER, COLO. 
Sempervivum, New Varieties. I am now able to supply in limited 
quantity, the following very choice varieties: Blanda Rubicunda, 40c; 
Borsch Hybrid, 50c; Calcareum, 50c; Carnollii, 40c; Hutell, 40c; Mam 
vine, 40c; Moggridgei, 50c; Pittonni 50c; Siebenbergen, 40c; Violes- 
cens, 75c. 
SENECIO lanatifolius. *X Unique for its pectinate-pinnatifid leaves, 
the edges full and inrolled to form a peculiar wavy margin. The gray¬ 
ish rosettes are evergreen; flowers yellow, aster-like. 40c; 3. $1.00. 
SIDALCEA Neomexicana. Malvaceae. * Like a miniature pink holly- 
nock, 2 feet tall, early summer. 40c; 3, $1.00. 
SILENE acaulis. Caryophyllaceae. *X@ A mossy alpine, the green 
cushions starred with bright pink blossoms. Recommended for the 
moraine, where it flowers at frequent intervals during the summer. 40c; 
3, $1.00. 
S. alpestris. X Six inches; little panicles of glistening white flowers; 
early summer. Flowering clumps, 40c; 3, $1.00. 
S. schafta. X Moss Campion. Small clumps to 6 inches, flowers rose 
or purple, appearing in Sept, or Oct. when flowers in the rock garden 
are scarce. 40c; 3, $1.00. 
SOLI DAGO. Compositae. Goldenrod. Many are rampant spreaders, 
but I recommend the following which are well behaved and very lovely. 
S. Capulinse. * Capulin Goldenrod. Two feet, freely branching from 
a compact crown, very floriferous, individual florets large, like minia¬ 
ture golden aster. New. 50c; 3, $1.25. 
S. pallida. * (syn. S. speciosa.) Tall plumes of glowing gold, very 
fragrant; height 2 feet, forming a compact clump. 40c; 3, $1.00. 
S. scopulorum *$ Showy panicles on 6-inch stems in May, 40c; 3, 
$ 1 . 00 . 
SPIRAEA. Roseaceae. The herbaceous Spiraeas are referred by 
some authors to Filipendula. 
S. Filipendula. 2 y 2 feet; feathery-cut foliage and sprays of white 
flowers. 40c; 3, $1.00. 
S. Filipendula, double. Dwarfer, and the flowers appear whiter than 
the single form. 40c; 3. $1.00. 
S. Ulmaria Plena. The double-flowered Meadow-Sweet is one of the 
most attractive of perennials and thrives best with a moist medium 
heavy soil. 40c; 3, $1.00. 
SYNTHYRIS. Scrophulariaceae. A charming group of rock plants 
with varied foliage, forming rosettes; the low flower spikes sometimes 
silky, suggesting the popular name, Kittentails. Loamy soil, part shade. 
S. alpina. *X Silky spikes of lavender to violet, very early; an al¬ 
pine for moist shade. 40c; 3, $1.00. 
S. plantaginea. *X Rather like alpina, but taller, to 10 inches, and 
with larger foliage; ordinary soil, sun. 40c; 3, $1.00. dozen, $3.00. 
S. reniformis. Oregon. Kidneyleaf. Round evergreen dentate 
leaves and violet-blue flower spikes in early spring; a gem for moist 
shade. 40c; 3, $1.00. 
S. Ritteriana. *X Subalpine with splendid foliage and 10-inch spikes 
of white flowers; rare plant and one of the best; easy culture with 
part shade and humus. 50c; 3, $1.25. 
TEUCRIUM Chamaedrys. X Small shrub-like perennial, evergreen, 
fls. rosy or purple; valuable rock plant for many situations. 40c; 3, 
$ 1 . 00 . 
