Refugium Botanicum. | [ebruary, 1869. 
TAB. 66. 
SSS$§ Ceespitosee. 
24, C. PULVERULENTA (Baker). Caulescens, glabra, foliis dense rosu- 
latis, oblongo-spathulatis, acutis, triplo vel quadruplo longioribus 
quam latis, utrinque farinosis, ramorum floriferorum numerosis, 
parvis, cordatis, floribus in racemis tribus secundis nutantibus 
multifloris dispositis, bracteis ovatis amplexicaulibus pedicellis sub- 
eequantibus, sepalis lanceolatis eequalibus ascendentibus corolla 
obscure rubro-aurantiaca duplo brevioribus.— Echeveria pulveru- 
lenta, Nuttall in Torr. et Gray, Flora N. Am. p. 560; Walp. Rep. 
li. p. 259. 
California. 
Glabrous. The stem eight to twelve inches long, an inch 
thick. The leaves twenty to thirty in a dense rosette, oblong- 
spathulate, the largest three to four inches long by an inch 
broad a little above the middle, the apex subdeltoid-acuminate, 
the centre of the blade one-eighth of an inch thick, both sides 
quite white-pulverulent, slightly tinged with pink when fading. 
Flowering branches two to three feet long, with numerous small 
ascending ovate-amplexicaul leaves. lowers, in the only living 
example we have seen, in a panicle branched from the base, with 
three drooping racemose branches, the longest a foot long. 
Bracts ovate-amplexicaul, the lowest about equalling the ascend- 
ing pedicels, which are one-fourth to three-eighths of an inch 
long. Sepals lanceolate, three to three and a half lines long, 
adpressed to the dull reddish-yellow corolla, which is five-eighths 
of an inch long, and scarcely at all pentagonal.—J. G. B. 
A very remarkable species, having the leaves entirely covered 
with meal-like powder, which gives them a very white delicate 
appearance. It should be grown in a dry, warm, light green- 
house, should be carefully watered at all times, and potted in 
very light turfy loam, peat, sand and a little leaf-mould, well 
mixed. ‘The plant is of rare occurrence in collections, owing to 
the difficulty there is of keeping it in a healthy condition. I am 
indebted to the Royal Gardens at Kew for my plant. I have had 
it many years under cultivation, during which time it has only 
flowered once.—W. W. S. 
