LETTUCE 
Variety Days Head Type 
Bibb... 4 ie.0 eee oe. 60 small butterhead 
DankeGrechiG@Os sae 64 cylindrical 
Bittel ower Cosma 75 cylindrical 
Grand’ Rapidsmaee 43 loose leaf 
Great. Lakes>9/ 3 ee 78 solid, fiattened, large 
Great }VakesiG> seer 83 solid, large 
Greate Bakes 66 seme 85 solid, large 
Greateakcselll Saas 83 solid, large 
Great ibakes|659 eee 86 solid, medium 
im penal’ Gia 86 large; medium solid 
Midas@ee esa ee tae 78 butterhead 
Nos lO 1A er ee ee 86 large; medium solid 
INO:745 6: gieeace eee 81 solid, medium large 
Rarrissisiands Cos sae 70 cylindrical 
Pennlakc enn ea ere 77 solid, large 
Premier Great Lakes 79 solid, round, large 
Sal adis 0 wl ee eee 45 loose leaf 
VWinitesBOston sane 72 butterhead 
WihitelRaris: Cosme 66 cylindrical 
Leaf Type 
thick, smooth 
slight crumple 
long, folded 
wavy, fringed 
smooth, short, crisp 
glossy; medium frilled, crisp 
large; frilled, crisp 
thick, glossy, crisp 
large, frilled, deeply cut 
large, crumpled; medium crisp 
somewhat crumpled 
large, crumpled; medium crisp 
smooth, frilled 
slight crumple 
crumpled; not so ribby 
smooth, not ruffled 
deeply notched 
smooth, wavy 
smooth, concave 
Leaf Color 
deep green 
Remarks 
For forcing or first-early. 
dark green 7-8” high; self-closing. 
medium green 12-13”: compact. 
light green For forcing or greenhouse. 
gray green Uniform; tipburn resistant. 
dark green Similar to Great Lakes 118. 
dark green See below. 
dark green See below. 
dark green See below. 
medium green Far West; excellent quality. 
bright green See next page. 
medium green See below. 
light green See below. 
dark green See below. 
dark green See below. 
dark green Heat-resistant; slow bolting. 
light green Very slow bolting. 
light green Fanciest of Boston types. 
medium green 
9-10” high, compact, crisp. 
GREAT LAKES 66. A new AsGROW selec- 
tion, distinctive for its large plant and 
dark green color. Upright, medium frilled 
wrapper leaves give good protection to the 
large, well formed heads. Butts unusually 
smooth and well colored. Matures a few 
days after Great Lakes 118. Should do 
well where a large Great Lakes is wanted. 
GREAT LAKES 118. An aAsGrow develop- 
ment and now the leading strain of the 
Great Lakes type. Widely recognized as the 
most uniform Great Lakes strain, per- 
forming well under a wide range of condi- 
tions and giving a heavy first cut of large, 
attractive heads. Shows good tipburn re- 
sistance and is relatively slow to bolt. 
GREAT LAKES 659. A distinct strain, with 
large, highly frilled and deeply cut wrap- 
per leaves, maturing somewhat later than 
other strains. Has performed well for late 
fall, winter, and spring harvest in the 
Southwest, and for late summer and fall 
harvest on muck in northern areas. 
No. 101. The leading variety of the Impe- 
rial type. Use largely restricted to Califor- 
nia and Arizona for winter harvest. Heads 
large, medium solid; excellent quality. 
No. 456. For summer harvest on muck 
and heavy soils in the Northeast. Very 
slow to bolt; resistant to tipburn. Heads 
more solid and slightly smaller than Great 
Lakes but more susceptible to frost injury. 
PENNLAKE. Combines the solidity and tip- 
burn resistance of Great Lakes with the 
larger head size of Imperial 847. Of Great 
Lakes type, with crisp, dark green smooth 
leaves, but not so ribby. Notably uniform 
in maturity. Tolerant of heat and resistant 
to tipburn when grown as an early sum- 
mer crop. 
No. 456 
Continued on next page 
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