SYNGENESIA. iEQUALIS. Lactuca. 
885 
4— Lonic. i. 93. 1— Dod. 643. 2— Lob. Jc. i. 234. 2 —Ger. Em. 291. 1— 
H. Ox. vii. 2. 8. 
( Prickle-dented Sow-thistle. E.) Fields, and in woods where the under¬ 
wood has been cleared. 
Var. 5. Leaves inversely egg-shaped, tapering below into leaf-stalks. 
Pluk. 61. 5—-Pet. 14. 1. 
(Round-leaved Sow-thistle. E.) Corn-fields about London. 
Yar. 6. Leaves strap-oblong, rounded at the end. 
Pluk. 62. 4— Pet. 14. 3. 
( Narrow-leaved Soiv-thistle. E.) 
Yar. 7. Stemless; leaves spread on the ground, deeply wing-cleft; seg¬ 
ments sharply toothed. 
I found this singular variety on Portland Island in the month of May. 
The flowers sessile close upon the root. Possibly the effect of its mari¬ 
time situation. 
LACTU'CA.^ Receptacle naked : Calyx tiled, cylindrical 
scales membranous at the edge. Down hair-like, pedi¬ 
cellate. 
L. scarYola. Uppermost leaves perpendicular, sinuated, their mid-rib 
prickly on the back. 
E. Rot. 268—. Fuchs. 301— (FI. Dan. 1227. E.)— Dod. 64 6—Ger. Em. 309, 
3— J. B. ii. 1003— Pet. 15. 3—//. Ox. vii. 2. IK—Matth. 622—Lob. Obs. 
118. 1, and Ic. 1. 234 —Park. 814. 2—Barr. 13 5—Trag. 259. 
(Whole plant glaucous, lactescent, but milder than L. virosa. Stem two to 
three feet high, terminating in a panicle. E.) Stem-leaves constantly 
with deeper winged clefts than those of L. virosa. Flowering branches 
pointing upward, not expanding. Flowers smaller. Pedicle of the down 
much shorter. Woodw. Blossom pale yellow, rather small. E.) 
Prickly or Mild-scented Lettuce. On rubbish, sides of corn-fields, 
ditch banks, and stony ground. Isle of Ely. Rev. R. Relhan. Burwell, 
near Newmarket. Mr. Dawson Turner. (On banks near Pancras, Mid¬ 
dlesex, and in a sand-pit at Charlton Wood, Kent. Mr. E. Forster, jun. 
Near the entrance into Peak’s Hole, Derbyshire. Mr. J. Martin, in Bot. 
Guide. E.) B. Aug. 
L. viro'sa. All the leaves horizontal, toothed ; mid-rib prickly on the 
back. 
(E. Bot. 1957. E.)—- Collin, Ohs. vi. Prcef. p. ix. — Woodv. 250— J. B. ii. 
1102— Pet. 15. 2 —H. Ox. vii. 2. 16. 
Stem two to four feet high. Root-leaves oblong, wedge-shaped, toothed at 
the edge. Stem-leaves arrow-shaped, embracing the stem, either entire 
or wing-cleft, sharply toothed. Flower-leaves arrow-shaped, half em¬ 
bracing the stem, broad at the base, tapering to a sharp point, one at the 
base of each flowering branch.. Flowering branches expanding. Floivers 
sessile, or on short fruit-stalks. Floral-leaves similar to the stem-leaves 
but smaller, one at the base of each fruit-stalk, and others still smaller 
* (From hc s lactis , milk j the whole plant being lactescent, E.) 
