Crossword-Solution: LACTUCA 7 letters, 1 clue 🏆 scrabble score: 11

Lactuca sativa (Compositae).--Covered plants produced some seeds, but the summer was wet and unfavourable.

These fifteen species consist of Brassica oleracea, Reseda odorata and lutea, Limnanthes douglasii, Papaver vagum, Viscaria oculata, Beta vulgaris, Lupinus luteus, Ipomoea purpurea, Mimulus luteus, Calceolaria, Verbascum thapsus, Vandellia nummularifolia, Lactuca sativa, and Zea mays.) For instance, with Ipomoea purpurea every single intercrossed plant exceeded in height its self-fertilised opponent until the sixth generation; and so it was with Mimulus luteus until the fourth generation.

Lactuca scariola (Compositæ).—The cotyledons whilst young stood sub-horizontally during the day, and at night rose so as to be almost vertical, and some were quite vertical and closed; but this movement ceased when they had grown old and large, after an interval of 11 days.

The waters are covered with zostera; and in the midst of a very extensive bank of weeds, we distinguish a free and circular spot of three feet in diameter, on which float a few scattered masses of Ulva lactuca.

Brambles and roses are widely known instances, but oaks, elms, apples, and pears, _Mentha_, _Prunu_s, _Vitis_, _Lactuca_, _Cucumis_, _Cucurbita_ and numerous others are in the same condition.