[Nuttallia Barton, Fl. N. A. 2: 74. pl. 62. 1822.]

Herbs, with lobed or divided leaves, and showy axillary or terminal perfect flowers. Bractlets of the involucel 1-3, separate, or none. Calyx deeply 5-parted. Petals cuneate, truncate, often toothed or fimbriate. Stamen-column anther-bearing at the summit. Cavities of the ovary ∞, I-ovuled; style-branches of the same number as the cells of the ovary, stig-matic along the inner side. Carpels ∞ (10-20), arranged in a circle, I-seeded, indehiscent or 2-valved, beaked at the apex, the beak separated from the cavity by a septum. Seed ascending. [A Greek mythological name.]

A genus of about 7 species, natives of the central and southern United States and northern Mexico. Type species: Callirhoë digitata Nutt.

Bractlets of the involucels none.

Flowers 1' broad; carpels very pubescent.

1.

C. alceoides.

Flowers 1 1/2'-2' broad; carpels scarcely pubescent.

2.

C. digitata.

Bractlets of the involucels 3.

Leaves triangular, crenate; carpels not rugose.

3.

C. triangulata.

Leaves orbicular, palmatifid; carpels rugose.

4.

C. involucrata.

1. Callirhoë Alceoides (Michx.) A. Gray. Light Poppy-Mallow

Fig. 2853

Sida alceoides Michx. Fl. Bor. Am. 2: 44. 1803.

Callirhoë alceoides A. Gray, Mem. Am. Acad. (II.) 4: 18. 1848.

Perennial, erect, 8-20' high, slender, strigose-pubescent, branched at the base from a thick woody root. Basal leaves triangular, palmately lobed or incised, 2'-3 1/2' long, slender-petioled; stem-leaves palmatifid, the divisions linear or cuneate, acute or obtuse; flowers corymbose or racemose at the summit, pink or white, about 1' broad; pedicels 1'-2' long, slender; involucels none; calyx-lobes triangular, acuminate; petals dentate and somewhat fimbriate; carpels strigose-pubescent and conspicuously rugose-reticulate on the back.

In dry soil, Kentucky to Nebraska, Kansas and Texas. May-Aug.

1 Callirho Alceoides Michx A Gray Light Poppy Mall 1195

2. Callirhoë Digitŕta Nutt. Fringed Poppy-Mallow

Fig. 2854

Callirhoë digitata Nutt. Journ. Acad. Phila. 2: 181. 1821.

Nuttallia digitata Bart. Flora N. A. 2: 74. pl. 62. 1822.

Similar to the preceding species, sparsely pubescent or glabrous. Divisions of the stem-leaves longer, narrowly linear, sometimes quite entire and 4-5' long, sometimes deeply incised; basal leaves sometimes cordate-triangular, crenate, lobed or divided; involucels none; flowers long-pedun-cled, 1 1/2'-2' broad, reddish-purple or lighter; petals beautifully fimbriate; calyx-lobes triangular to lanceolate, acuminate; carpels strongly rugose-reticulate, scarcely pubescent.

In dry soil, Illinois and Missouri to Kansas and Texas. April-July.

2 Callirho Digit Ta Nutt Fringed Poppy Mallow 11962 Callirho Digit Ta Nutt Fringed Poppy Mallow 1197