FIG. 136. AQUILEGIA OLYMPICA, showing Habit and Flower.
FIG. 137. AQUILEGIA SIBIRICA FLORE-PLENO, showing Habit and Flower.
A. v. Wittmanniana (Wittmann's). fl. large, bright lilac purple; sepals ovate-acute, 1in. to 1¼in. long, more than half as much broad; limb of petals white, about half the length of sepals; spur curved. A very fine variety.
The following names are also met with in gardens, some of which represent specific forms, but none are effective as garden ornaments: advena, Burgeriana, Haylodgensis (hybrid), grata, longissima, nevadensis, oxysepala, &c.
AQUOSUS. Watery.
ARABIS (origin of the word not clear). Wall Cress; Rock Cress. ORD. Cruciferæ. Hardy perennial trailers, except where otherwise stated. Flowers mostly white; racemes terminal; pedicels bractless. Radical leaves usually stalked; cauline ones sessile or stem-clasping, entire or toothed, rarely lobed. Most members of this genus are peculiarly well adapted for rockwork and the alpine garden, both from their natural hardihood as well as their early and profuse flowering habits. They are of the easiest possible culture in any dry soil. The perennial species may either be increased by divisions of the root, by cuttings, placed in a shady border during the summer, or by seed. The latter may be sown outside, or in pans, in spring, when most of them will germinate in two or three weeks. The annuals and biennials are for the most part devoid of any cultural beauty.
A. albida (whitish).* fl. white; racemes terminal; pedicels longer than the calyx. January to May. l. few-toothed, hoary, or downy with branched hairs; radical ones obovate-oblong; cauline ones cordately sagittate, clasping the stem. h. 6in. to 9in. Tauria and Caucasus, 1798. SYN. A. caucasica.
A. a. variegata (variegated).* A very pretty variegated form for edgings.