10 = Dr. Engelmann. 
BUSHBERG CATALOGUE. 
Classification. 
_ stunted autumnal branchlets. The few lowest 
leaves of a cane have no opposite tendrils, but 
after the second or third leaf the regularity in 
four or five, or rarely, even more in auccession, 
each opposite a Whenever in other spe- 
cies, in rare cases, a third or fourth inflorescence 
occurs, there will always be found a barren 
leaf (without an opposite inflorescence) be- 
tween the second and third bunches. 
Another valuable character, discovered by 
Prof. Millardet, of Bordeaux, is found in the 
structure of the branches (‘‘ canes,” as they are 
- These | 
iaphragms consist of harder, solid pith, of the ; 
appearance of wood, and are examined best in 
canes 6 to 12 months old, when the pith has 
turned brown and the diaphragm is whitish ; 
A longitudinal section through the cane will 
best exhibit them. They are, in most species, 
1 to 2 lines thick; but in the ymintgipe grape, 
Vitis riparia, the diaphr than 
3 to } line thic 
_ ately ; and this character holds good in winter, 
; when. all eee ee or fruit have disap- 
Fig. 36. Fig. 37. 
| 
V.riparia. V.rupes stris. V. cordifolia. V. viipena 
possible to propagate by cuttings are Candi- 
cans, Aistivalis, iat ah apanidcge, Vulpina, 
and probably Californ A 
ibea I do not know in “this re 
re or less readily from cuttings is stated 
further on (page 16). 
The structure of the bark of the young canes 
shows also differences in the different species, 
but as the characters are to some extent of 
| Inicroscopical detail they are here omitted. 
The bark of the mature canes is ashy gray 
(V. cordifolia, V. Cinerea), to red or brownish 
V, estivalis); it peels after the first season 
in lar w strips or shreds; 
only in the Muscadine grape the dark gray 
bark does not peel off at all, at least not for a 
number of years. 
Young seedlings of all the Grape-vines are 
glabrous or only very slightly hairy. The 
cobwebby or cottony down, so characteristic of 
some species, makes its appearance only in the 
more advanced plants ; in some of their varie- 
ties, and not rarely in the cultivated ones, it is 
y observed in the young growth of spring 
and is apt to disappear in the mature leaf; but 
even then such leaves are never shining as 
they are in the glabrous’ species, but have a 
dull or unpolished, or even wrinkled surface. 
either with an acute and narrow sinus (V. ecor- 
_ data, and many other species), or with a broad 
_ and wide one (TV, riparia and V, 
to 
Leaves of 
- not lobed; young shoots from the base of old 
stems, as a rule, have deeply and variously 
lobed leaves, even where the mature plant 
disposi 
p. 
shows no tion. Some species (¥. 
riparia), jes (forr 
of V. labrusca and v. ucaias have all the 
Et ee a 4 exhibi 
_ on the mature plant, always entire, or, I should oY 
a rather pales not lobed leaves; the leaves” _ peas : 
