NOTES ON PLUM CULTURE. 
4S 
ROCKFORD. {Fnvniis Americana.) 
Our trees planted in 1894 are still rather small, but 
thrifty in appearance, forming round regular tops. Leaves 
large, coarsely and deeply serrate, short acuminate; stalks 
dark red, pubescent, mostly glandless. Fruit of medium 
size, oblong, somewhat pointed, broad at base; color dark 
red on green ground; skin thin; suture inconspicuous; flesh 
firm, very acid until quite ripe, then of good quality; stone 
cling, broad at stem end and tapering to a rather acute,, 
thick apex, sides strongly convex, margin narrow, but sharp. 
Productive, early; ripe August 31. 
ROLLINGSTONE. {Primus Americana.) 
Trees typical of the species, well-formed and of fair 
vigor. Leaves large, broad, irregularly crenate; color dark 
green, stalks mostly glandless. Fruit large, round, flattened 
at both ends; deep red shading to pink on yellow ground; 
stem of medium length, skin thick; flesh firm, good; stone 
cling, broad oval, sides convex, margins sharp, smooth. 
Season medium, ripe September 12. 
RUSSIAN No. 2. {Prunus domestica) 
Trees forming roundish heads, and making less growth 
than other varieties of the same class. Leaves of medium 
size, broad, dull green, evenly crenate; stalks short, gland- 
less. Fruit of medium size, inclined to be irregular in shape,, 
often more or less constricted at stem end, and sometimes, 
flattened at distal end; suture apparent, more deeply colored 
than surrounding parts; color deep purple, with heavy blue 
bloom, stem sout, of medium length; flesh firm, sub-acid; 
quality only fair; stone free. Season early, ripe August 15. 
SPEER. {Prunus Americana) 
Small, but vigorous trees of spreading habit, produc- 
ing long, slender branches. Leaves large, broad, acumin- 
ate, deeply and sharply serrate, dark green; stalk red, nearly 
glabrous, usually bearing small glands. P'ruit medium in 
size, round-oblong, often contracted about the stem; suture 
evident; color purple-red on yellow ground; stem shorty 
slender; skin thick; flesh firm and of good quality; stone 
cling, short-oblong, rather flat, ends blunt. Season medium^ 
ripe September 17. Very productive. 
