[Illustration: FIG. 16. FLOWER OF ACHIMENES LONGIFLORA.]
=A. atrosanguinea= (dark-crimson).* _fl._ crimson; tube of corolla 1-1/2.in. long, cylindrical, saccate at base, pilose; limb small, spreading; peduncle one-flowered. July, August. _l._ pilose, oblong, sub-cordate, serrated, unequal. _h._ 1-1/2ft. Guatemala, 1848.
=A. candida= (white).* _fl._ white; tube of corolla gibbous at base; limb oblique, the front segment largest; peduncles axillary, pilose, three-flowered. June. _l._ unequal, oblique at base, serrated, pilose. _h._ 1-1/2ft. Guatemala, 1848.
=A. coccinea= (scarlet).* _fl._ scarlet; peduncles solitary, axillary. August. _l._ three in a whorl, ovate, acuminated, serrated, with minute leaves in the axils. _h._ 1-1/2ft. Jamaica, 1778.
=A. cupreata= (coppery). _fl._ scarlet; calyx spotted inside, with a fringed mouth; petals ciliately toothed; peduncles one-flowered. April. _l._ elliptic, serrated, wrinkled, coloured. _h._ 6in. Mexico, 1845. Plant creeping, downy.
=A. gloxiniæflora= (gloxinia-flowered).* _fl._ whitish, large, axillary; tube of corolla 2in. long; limb broad, spreading; lobes finely serrated, dotted with purple inside. June. _l._ serrated from middle to top. Stem slender, flexuous. _h._ 1ft. Mexico, 1845.
=A. grandiflora= (large-flowered).* _fl._ violet purple, very large, solitary, axillary; limbs of corolla spreading. June. _l._ equal, ovate, oblique at base, sparingly serrated. _h._ 1-1/2ft. Mexico, 1842.
=A. heterophylla= (various-leaved). _fl._ solitary or twin; corolla scarlet; lobes ciliated. July. _l._ opposite, one smaller than the other, cordate ovate, acuminated, coarsely serrated. _h._ 1ft. Mexico. Plant rather hairy.
=A. hirsuta= (hairy). _fl._ reddish, with yellow eye; limb of corolla flat, with rounded serrulate segments; peduncles one-flowered. July. _l._ cordate, serrated. _h._ 2-1/2ft. Stem bulbiferous. Guatemala, 1842. Plant hairy.
=A. Kleei= (Klee's).* _fl._ lilac; corolla dark near the mouth, with a dash of yellow in the throat; calyx downy; peduncles one-flowered. August. _l._ ovate, acuminate, serrated. _h._ 6in. Guatemala, 1848. Plant hairy.
=A. longiflora= (long-flowered).* _fl._ violet; segments of calyx lanceolate, erect; corolla with a long tube, and an ample spreading limb; pedicels one-flowered. July and August. _l._ three to four in a whorl, ovate or oblong, coarsely serrated. _h._ 1ft. Guatemala, 1841. Plant hairy. See Fig. 16.