Chapter M: VERSICOLOR, Pers. More slender than the last, simple at base; racemes

loose, mostly naked at base; _flowers almost sessile; corolla pale yellow changing to blue or violet; calyx deeply and equally 5-cleft_.--Fields, Del. (Nat. from Eu.)

7. LITHOSPERMUM, Tourn. GROMWELL. PUCCOON.

Corolla funnel-form, or sometimes salver-shaped; the open throat naked, or with a more or less evident transverse fold or scale-like appendage opposite each lobe; the spreading limb 5-cleft, its lobes rounded. Anthers oblong, almost sessile, included. Nutlets ovate, smooth or roughened, mostly bony or stony, fixed by the base; scar nearly flat.--Herbs, with thickish and commonly red roots and sessile leaves; flowers solitary and as if axillary, or spiked and leafy-bracted, sometimes dimorphous as to insertion of stamens and length of style. (Name formed of [Greek: li/thos], _stone_, and [Greek: spe/rma], _seed_, from the hard nutlets.)

Sec. 1. _Nutlets tubercled or rough-wrinkled and pitted, gray and dull; throat of the (nearly white) corolla destitute of any evident folds or appendages._

L. ARVENSE, L. (CORN GROMWELL.) Minutely rough-hoary, annual or biennial; stems erect (6--12' high); leaves lanceolate or linear, veinless; corolla scarcely longer than the calyx.--Sandy banks and roadsides. May--Aug. (Nat. from Eu.)

Sec. 2. _Nutlets smooth and shining, white like ivory; corolla greenish-white or pale-yellow, small, with 5 distinct pubescent scales in the throat; perennial._