
VITIS BOURQUINIANA 
V. Bourguinia (V. aestivalis var. Bourquiniana, V. Bourquiniana) Southern Summer 
Grape. Young growth only moderately rusty as well as under surface of leaves, 
the covering mostly gray; fruit to 3/4 inch across and in large clusters. Cultigen. 
Herbemont, Lenoir and other vineyard varieties belong here. 
-- Hortus Second, 1941 
RR a ee te 
Vitis Bourcuiniena, Munson. 
Synonym: 
Vitis aestivalis, Ingelmeann, Bushberg Cat. 7, p. 16, 1883 
"Southern Aestivalis" 
Two forms: a such as Herbemont, Lenoir, etc., with distinctly lobed leaves 
and mostly large compound clusters; and b with leaves only shouldered, each side 
the mid-lobe or top, and clusters simple such as Devereux, Rulander, etc. 
Plants: Climbs vigorously to great height; when young procumbent, slender; 
foliage lively green until very late. 
Roots: Very thick, deeply corrugated bark, moderately firm, penetrating 
deeply, and quite resistant to Phylloxera. 
Wood: When young, green or pale red, smooth or with scattered hairs, cyl- 
indrical; bark offa pale cinnamon or reddish-brown color at maturity, obscurely 
striated, fibrous, true bark finely checked above ground, mature annual wood 
with a little prunose bloom about the nodes, and often a fine bristly, or short brown 
olusk-like pubescence, as in Herbemont, is near the nodes; persistent; wood of 
medium density; more in a than in & sectional view of annual wood oval or cir- 
cular, rays numerous, pores small, nodes very large, bulging under and opposite 
the buds, much bent; diaphragm 1/16" (especially in b) to 1/12" or more thick 
(in a), slightly biconcave,less in b than in a, buds in a very broad at base, 
similar to Vinifera, globose, conical, covered with pale brown scales, or in b 
smaller, more conical and acute, with darker scales, large,rusty, pink in expanding; 
tendrils often twice forked in a, less so in b, long and strong in a, less so in b3 
internodes short, 1" to 3" or more, long; pith rather small, a little enlanied 
at lower end, light brown. 
Leaves: Stipules small, short and broad, pale, thinly hairy; petiole half 
as long as width of blade, or less; generally cylindrical, obscurely striated and 
grooved, thinly or often densely pubescent in a; blade largest in a, 4" to 6" or 
more wide by 34" to 58" or more in length; in b 33" to 43" or more wide by 24" 
to 34" or more long; outline of blade in the Warren, group a, broad cordate, in 
the Bevereux, group b, circular; basal sinus deep, acutely inverted V-shaped with 
curved sides which never or rarely lap; a generally 3 to 5 lobed, acute, with 
shallow, narrowly rounded sinuses, often having a convex tooth at base of sinuses, 
apex acute; b broad, obtuse, shouldered,apex broad, short, acute; teeth in both | 
a and b distinctly raised, convex mucronate, with a yellowish-white mucron, noteb. bet 
between teeth acute, venation prominent from the thinly hairy or pubescent, some-~ 
times 6 to generally 7 pairs of nearly opposite ribs, in the forks of which small ~ 
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