110 
JUGLANS PITTEURSII. 
of Belgium in 1845. Flowers ? Culture. 
Requires the shelter of a frame or greenhouse; 
turfy peat and loam; propagated by seeds, or 
by dividing the roots. 
Passiplora myriadenta, Lemaire (glan- 
dular Passiflora). — Passifloracea}. — A hand- 
some climbing shrub, with smooth, somewhat 
viscous stems, growing to a considerable length 
and somewhat striated. The lower leaves 
three-lobed, hastate, the upper ones five-lobed, 
with a cordate base; the stipules are rounded 
and fimbriated with glands, the teeth of the 
leaves are glandular, the lower side of the 
leaves is studded with innumerable glands, 
and the petals, calyx, and involucre are all 
glandular. The upper surface of the leaves 
is smooth. The flowers are attached by long 
peduncles ; they are large, the perianth white, 
the double row of coronal filaments violet at 
the base, merging to lilac at the summit. Na- 
tive country not known. Introduced into the 
Belgian gardens before 1846. Flowers in 
summer. Culture. — Requires a stove, or pro- 
bably may succeed in a warm greenhouse ; 
peat and loam ; propagated by cuttings. 
Sedum Kamtschatkia, Maund (Kamt- 
schatkia Stone-crop). — Crassulaeea? § Crassu- 
leae. — An ornamental species, of perennial 
duration, growing eight inches in height, the 
stems furnished with oblong coarsely serrated 
leaves, alternately disposed, and becoming 
branched at top, in a cymose manner, where 
the flowers are produced. The latter are nu- 
merous and attractive, looking like little golden 
stars, their colour being yellow, slightly tipped 
on the back of the petals with red, which is 
obvious in the unexpanded blossoms. It is 
very well deserving a place amOng border 
flowers. Native of Kamtschatkia. Intro- 
duced before 1846. Flowers in June and 
July. Culture. — Perfectly hardy, but pre- 
ferring a dryish situation ; common garden 
soil, or suitable for rockwork ; propagated by 
dividing the plant. 
Loasa picta, Hooker (painted-flowered 
Loasa). — Loasacea3§Loaseae. — A rather pretty 
annual plant, with stems about a foot high, 
dichotomously branched, weak, but nearly 
erect, and clothed, together with the leaves, 
with thin pubescence and numerous stinging 
hairs. The leaves are rhomb-ovate, acutely 
lobed and serrated, pale green, the lower ones 
stalked, the upper or floral leaves sessile, lance- 
shaped, and coarsely serrate. The flowers 
grow in elongated racemes, and are compara- 
tively large, drooping, the petals yellow in the 
lower half, the rest white, reflexed obovate 
and cucullate ; the petaloid scales prominent, 
ovate-acuminate, bind, cucullate at the base, 
white, beautifully mottled Avith red. Native 
of Chacapoyas, in the South American Andes. 
Introduced in 1848. Flowers in summer and 
autumn. Culture. — Half-hardy; that is, re- 
quiring to be sown under shelter, and planted 
out in 1\ lay ; rich light soil; propagated by 
seeds. It will probably make a pretty bed in 
the flower garden. 
JUGLANS PITTEURSII. 
Juglans Pitteursii, Morren (Pitteurs' Wal- 
nut). — Juglandaceai. 
This new walnnt, nearly related to the 
Juglans nigra, has been figured and partly 
described by Professor Morren, in the Ghent 
Annates. From the account there given, it 
appears to be a handsome and vigorous tree, 
with pinnated leaves, having the leaflets lance- 
shaped and saw-edged, and bearing depressed 
ovoid nuts, of good flavour, and suitable for 
the dessert. It is named Noyer de Pitteurs. 
The Juglans nigra just mentioned, which 
bears also the name of American nut, has nu- 
merous lanceolate dentated leaflets to its pin- 
nated leaves, the petioles and lower surface of 
the leaves being pubescent. The fruit is glo- 
bular, somewhat top-shaped, the summit being 
elevated and pointed, and the surface punc- 
tured and scabrous. This brief description 
will serve to contrast with the following 
account by Professor Morren, of Pitteurs' 
walnut, translated from the above-named 
periodical : — 
" M. Theodore de Pitteurs, Hiegaerts, pre- 
sident of the council of Limbourg, while I 
was on a visit to his seat at Speelhof in 1847, 
directed my attention to a large and handsome 
tree, cultivated under the name of American 
nut, but whose characters seemed not to agree 
with the species to which it had been assigned. 
This tree, which had made considerable growth, 
might be from fifteen to twenty years old. 
The time it was planted is not exactly known. 
It has the habit of the black nut, with grey 
smooth bark, and the body well branched and 
leaved. The leaves are arranged in a pin- 
nated form, the leaflets being in pairs, distant, 
nearly opposite, elongated, lanceolate, and 
toothed like a saw ; the under surface, as well 
as the petiole, shows a few hairs. There are 
from five to six pairs of leaflets. I have not 
seen the flowers. The fruit, however, pre- 
sents a marked difference compared with the 
American nut. In the tree at Speelhof, the 
nut is furnished with a short petiole, often 
transverse. The fruit is ovoid, and at once 
depressed and compressed in the form of an 
ellipsoid, flattened above and beneath ; the 
contour is round, and the rugosities of the 
green epicarp or outer covering are scarcely 
perceptible, even much less so than on the 
common American black nut. In the middle 
of the fruit, at the summit, which is never 
raised like a cone as in the black nut, there is 
