ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 277 
had from several English gardens, and Mrs. Henshaw tells me she 
knows it in the wild state in British Columbia. 
The name stenopetalum signifies narrow-pet ailed. 
135. Sedum pruinatum Brotero (figs. 162, 164,/). 
5. pruinatum Brotero, "Flor. Lusit./' 2, 209, 1804. Mariz in Boletim 
Sociedade Broteriana, 6, 1888, 21. R. P. Murray in Journ. of 
Bot., 27, 141, 1889. Rouy, " Illustr. Plant. Europ. Rar.," fasc. 10, 
77. Praeger in Journ. of Bot., 55, 213, 1917. (Not S. pruinatum 
of most British and Continental authors, which is S. rupestre L. 
= elegans Lejeune.) 
Illustration. — Mariz, loc. cit. tab, i. Rouy, loc. cit. pi. 231. 
This interesting and distinct plant has long been confused with 
the well-known 5. rupestre L. (=5. elegans Lej.), with which, though 
belonging to the same group, it has little affinity. In its leaves it 
comes nearest to 5. refiexum, but in growth it is quite different, and 
its very distinct inflorescence and flowers place it close to S. amplexi- 
caule. While resembling that species, particularly in its few-flowered, 
two-branched inflorescence and sepals with raised edges and a median 
depression, it differs widely in its leaves, which have not a broad, 
clasping base and do not dry up in summer. The very glaucous 
colour, curious whip-like shoots, rooting only at the tips and dying 
off behind in autumn, and large straw-coloured flowers distinguish 
5. pruinatum at a glance when it is growing among its nearest 
allies. 
Description. — A very glaucous, slender, evergreen perennial, with erect, 
sparingly leafy, flowering stems about 6 inches high, and very long (6 to 9 inches) 
slender prostrate barren ones, at first leafy, which perish in autumn save for the 
very leafy tip, which roots. Leaves of the different parts similar, alternate, very 
glaucous, linear, acute, to f inch long, subterete, flattish above, rounded below, 
with a short adpressed whitish spur ; distant, and withering at about flowering- 
time save at the tips of the barren shoots, where they are crowded, forming a 
slender, erect, winter bud. Inflorescence lax, 5- to 7-flowered, of two wide-spread- 
ing branches with a flower in the fork. Buds oblong, lanceolate, acute. Flowers 
f to f inch across, 6- to 7-parted, straw-coloured, on very short pedicels. Sepals 
tapering from a short tube to a rather acute point, glaucous, slightly recurved, 
edges somewhat raised on the back. Petals twice the sepals, wide-spreading, 
linear, acute, strongly keeled on back and channelled on face, | inch long, paler 
on back. Stamens equalling the petals, pale yellow, anthers oblong. Scales 
very small, bright yellow. Carpels nearly white, erect, slightly shorter than 
the stamens, tapering into the slender styles. 
Flowers July. Hardy. 
Habitat. — Portugal, very rare, chiefly about the Serf a de Gerez. 
Rev. R. P. Murray had it in cultivation in England some thirty 
years ago. By the kindness of Prof. J. A. Henriques of Coimbra, 
I received a good gathering of the wild plant in 1914, and about the 
same time Miss Luckham sent to the Royal Horticultural Society 
for identification a plant collected by her a few years previously. 
Named from the pruina or " bloom " (literally hoar-frost) which 
gives the plant its distinctive glaucous colour. 
