892 
- SEMPERVIVUM caliciforme. 
Chalice-formed Sempervivum. 
DODECANDRIA DODECAGYNIA. 
Nat. ord. SEMPERVIVER. 
SEMPERVIVUM L. V. supré vol. 2. fol. 99. 
S. caliciforme ; foliis levigatis nudis glaucis. densissimé imbricatis capitulo 
caliciformi incurvatim elegantissimé collectis. Haworth suppl. 69. 
This rare species of Sempervivum was introduced to 
the gardens of this country by the unfortunate Christian 
Smith, who collected it, with many other curious plants, 
in the island of Madeira, while touching there on his way 
to that unhappy climate whence he was destined never 
to return. 
We do not find the species described in any other work 
than that of Mr. Haworth, which we have quoted. The 
specimen with which we were furnished was so imperfect, 
that we have little to remark beyond what is expressed in 
our figure, which conveys a just idea of the plant. The 
leaves are glaucous, fleshy, very blunt, with a thin curled 
whitish edge. Before flowering they are so placed as to 
represent a small chalice, whence the name has been taken. 
The flowering stem appears to be glabrous, but the pedicels 
and the leaves of the calyx are sparingly covered with fine 
transparent glandular hairs. The flowers are bright yellow, 
with filiform petals, and a single row of stamens of the 
same colour as the petals, and about half their length. 
Our drawing was taken from a plant in the Nursery of 
Mr. W. Ross, of Stoke Newington. It is half-hardy, 
requiring only a dry air, and protection from frost. 
J. 0. 
