This section is from the book "The Standard Cyclopedia Of Horticulture Vol2", by L. H. Bailey. See also: Western Garden Book: More than 8,000 Plants - The Right Plants for Your Climate - Tips from Western Garden Experts.
Whole plant hoary-white, tall and branching: leaves thick, fleshy, shovel-shaped: flowers olive-green and red, 1 in. long, in a close panicle. Blooms freely in spring and summer. Abyssinia. Gt. 45, p. 465. - An exquisite plant for carpet-bedding.
bb. Leaves variously scattered along the stem, or sometimes in rosettes or clusters at the ends of the branches: mostly branching plants, grown in greenhouses, window-gardens, and sometimes used in summer bedding-out but not in carpet-bedding designs.
c. Flowers white or ochroleucus.
stems much branched, fleshy: leaves few at the ends of the branches cylindrical, acute, erect, fleshy, soft, smooth, 1/3in. or less long: flowers 1/2in. or less long, whitish, in an erect, dichotomous panicle. Cape. G.C. III. 21:282 -The wiry flower-stalks remain on the plant and give it the appearance of being inclosed in a network. Odd.
4. chrysantha, Hort. (Umbilicus chrysanthus, Boiss.). Plant pubescent, glandular above, the stem short: leaves rosulate, short, oblong-spatu-late, obtuse, those on the stem elliptic and somewhat acute: flowers large, ochroleucous (milk-white or yellowish), red-striped on the back of the oblong-lanceolate keeled lobes or parts of the corolla. Perennial. Asia Minor.
cc. Flowers yellow or greenish.
(Umbilicus pendulinus, DC). Pennywort. Navelwort. Perennial, 6-12 in. high in flower, simple or slightly branched, leafy at base: radical and lower leaves fleshy, orbicular, crenate, more or less peltate: flowers yellowish green, pendulous, in a raceme; calyx very small; corolla cylindrical, 1/4in. long but somewhat enlarging, with 5 short teeth. - On rocks and walls, W. Eu. Adaptable in rock-gardens.
ccc. Flowers red or purple.
Smooth, 1-2 ft. high, thick-stemmed, branched: leaves pale greenish white with a yellowish margin, glaucous, few, sessile, cuneate-obo-vate, thick, flattened, slightly concave, cuspidate: panicle branches long, scorpioid; flowers large, 1 in. long, pendent; calyx-lobes short, broadly ovate-acute; corolla-tube much longer than the calyx, with a greenish tube and reddish revolute limb. S. Africa B.M. 5602. J.H.III. 29:443.
(Umbilicus Sempervivum, DC). Houseleek Cotyledon. Plant green, glandular: radical leaves spatulate, obtuse, attenuate-cuneate at base, the margin denticulate; stem - leaves oblong: flowers purplish and papillose on the outside, on secund branches in a corymbose panicle; corolla thrice longer than calyx, parted to the middle, the parts lanceolate-acuminate and somewhat recurved. Perennial. - Not to be confounded with Sempervivum tectorum.
Erect, 2-4 ft. high: leaves opposite, flat, obovate-spatulate,. obtuse, mucronate, glaucous and mealy, with red margins: flowers large, reddish, panicled. Flowers June-Sept. S. Africa B.M. 321. R.H.
1857, p. 347. - Grows well from cuttings. Variable, and has several named forms as variety elata, oblonga, ramosa, rotundifolia.
(Pistorinia hispdnica, DC.). Annual or biennial, branched, 6 in. high, erect: leaves small, nearly cylindrical, oblong, few, sessile: flowers erect, in cymes, reddish; corolla trumpet-shaped, lobes spreading. Spain, Morocco. R.H. 1895, p. 472.
aa. Plants of the New World: corolla-tube usually short, perhaps always shorter than the calyx.
B. Leaves terete. (Stylophyllum.)
(Sedum edule, Nutt. Stylophyllum edule, Brit. & Rose). stems cespitose, very short and thick: leaves cylindrical, 3-4 in. long, erect, whitish or glaucous green, not mealy: flowers white, tinged with green, resembling those of Sedum, 1/2in. diam., short-pedicelled, along the upper sides of the flexuous branches of the cymose panicle; scape 1 ft. high. San Diego, Calif. - Young leaves eaten by Indians.
bb. Leaves linear or nearly so.
Plant glabrous, 3-4 in. high, erect, the branches woody: leaves few, alternate, crowded on sterile shoots, somewhat fleshy, linear or linear-spatulate, obtuse, 1/4-1/3in- long: flowersfew short-pedicelled, cymose; sepals free, linear, obtuse; petals plane and strongly coherent, forming a tube, 1/3in.; or less long, the lobes ovate, acute, erect. S. Mex. - One of the dozen known species of Altamiranoa (see p. 267, Vol. I), in that genus becoming A. mexicana, Rose.
c. Calyx minute. (Urbinia.)
Small and compact: leaves densely rosulate, stiff, acuminate and very sharp-pointed, pale gray-green on both sides, papillose: flowers 4-6, orange, on long pedicels; sepals several times shorter than the corolla. Mex. - Useful for carpet-beddings.
cc. Calyx evident or prominent.
D. Petals always appendaged at insertion of stamens. (Pachyphytum.)
Silver-Bract. Somewhat shrubby, very succulent, pale glaucous blue throughout: leaves clothing upper part of stem, more or less rosulate, large and thick, spreading, obovate, obtuse or obtuse-pointed, the scars from the fallen leaves orbicular: flowers in spikes 4-6 in. long on lateral peduncles; corolla red, immersed in the large calyx which is about 1 in. long; stamens 5 large and 5 small. Mex. B.M. 4951. - A singular plant, blooming in summer. 1 ft.
dd. Petals not appendaged.
E. Corolla strongly 5-angled. (Echeveria.) f. Color of plant (or of leaves) dark purple.
stem short and stout: leaves in rosette at top of stem, dark purple and glaucous, obovate-spatulate: flowers bright red, in a long raceme terminating the erect stem; corolla 5-angled, white toward base. Mex. See p. 1086.
ff. Color green, or ordinarily glaucous (except variety of No. 19).
G. stem wanting or nearly so (acaulescent species).
Acaulescent: leaves about 50 in a dense rosette 6 in. across and standing 4 in. high, obovate-spatulate, mucronate, reddish toward tip, glaucous: stem 12-24 in., with small If. - like bracts: flowers bright red, in a scirpioid spike; calyx-lobes linear, unequal; corolla about 1/2in. long, the parts lanceolate-acute. Mex. (?)-Interesting for its glaucous coloring and waxy coating of the leaves Named for Mr. Peacock, of Hammersmith, England, in whose collection it flowered. See p. 1086.