86 MAYFAIR: NURSERIES, Box 87, Hillsdale, N. J. 
Sempervivum heuffellii. The true type from the mountains ‘of Transylvania: The slowest 
~ growing species with tight reddish-brown rosettes, each leaf ending in ‘a’sharp point. 
It usually has one rosette that increases in size each year seldom producing off-sets. 
-Sempervivum hookerii. Very compact little mounds of tiny rosettes with green leaves 
tipped with brown. Each rosette is barely % an inch in diameter. It resembles the 
cobwebby. one without the white wool. ae 
Sempervivum Mayfair. A cross between S. arachnoideum and S. pittonii. Small gray- 
green rosettes with tufts of brown hair at the tip of each leaf, It. forms. quickly 
spreading sheets rather than mounds or clusters. 
Sempervivum montanum. Long and narrow, sharply pointed upturned leaves in tight 
ball-like rosettes, very much like S. globiferum. Large clusters of vivid, red flowers 
in June. The new rosettes roll off the mother plants to form new colonies. be 
Sempervivum pittonii. Soft velvety light gray rosettes, each leaf is tipped with dark 
brown points. Very rare and one of the most attractive to be found anywhere. Pale 
yellow flowers on 6 inch stems in June and July. 
Sempervivum arachnoideum 
Sempervivum rubicondum. Neat rosettes of short and broad pointed leaves tinted with 
bright red through most of the year, One of the most colorful varieties even with- 
out the pink flowers. 
Sempervivum ruthenicum. A rare and lovely species with large rosettes up to 3 inches 
in diameter. The purple leaves are covered with soft, velvety, gray wool, giving it 
a delicate two-toned aspect. 
Sempervivum tectorum, (Hens-And-Chicks) This is the ordinary common variety seen 
in almost every garden. It has very large rosettes sometimes as much as 5 inches 
across. The leaves are dark green, usually edged and tipped with brown or dark 
red. A useful plant that should not be overlooked, ; 
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