The fern, known as Tmesipteris oblanceolate, belongs to a primordial group of plants that evolved long before the dinosaurs set foot on the earth.

Leaves oblanceolate or nearly lanceolate; petals and stamens commonly 3; seeds more slender, covering the axis.—Ponds,

Leaves.—Two; oval-elliptical to narrowly oblanceolate; four to fifteen inches long; blotched with brown.

Sonchus oleraceus L. Flowers pale yellow; achenes reddish brown, linear, oblanceolate, 3 mm. long, flattened extremities blunt, 5 uneven wrinkled ridges on each side.

Leaves oblanceolate, rather regularly pinnatifid, the terminal segment about the same size as the lateral ones Sand Rocket, Diplotaxis muralis. 20b.