ACERANTHUS 



ACHIMENES 



17 



ACEKANTHUS | ;i flown- without horns). Berberi- 

 dactce. Slender, hardy, herbaceous perennial. 



A diphyllus, Morr. & Decne. (Epimedium diphyllum. Lodd.). 

 Plant rhizomatous : leaflets obliquely cordate, green above, 

 glaucous beneath : ns. small, bluish white. Japan. B.M.3448. 

 L.B.C. 19: 1858. 



ACHANIA. See Malvavisrnx. 



ACHILLE A ( its virtues said to have been discovered 

 by Achilles). Comp6sita>.. Includes Ptarmica. Hardy 

 herbaceous border and alpine plants of easy culture. 

 Dwarf kinds make carpets in dry, sunny places. Large 

 kinds suitable for wild gardens. Lvs. simple, compound 

 or ternate: fl. -heads small, corymbose. Prop, in spring 

 by division, cuttings and seeds ; chiefly by the first 

 method. 



A. Hays about 5, except in double forms, 7ialf as Jong as 

 ilu> ovate-oblong involucre; fls. white, red, or 



yellow 



B. Us. white or red. 



Millefdlium, Linn. MILFOIL. YARROW. Height 1-3 ft. : 

 Ivs. bi-pinnately parted, segments linear, 3-5 cleft:' fls. in 

 flat corymbs. Juue-Oct. Eu., Asia, Amer. Common in 

 pastures. D. 95. Less commonly cult, than vars. ru- 

 bruni and roseum, with red or purple fls. 



BB. Fls. yellow. 



Tournef6rtii, DC. ( A. ^Sgyptlaca, Linn.}. Height 12- 

 18 in. : Ivs. pinnatisect ; segments roundish, coarsely 

 toothed : fls. pale yellow. June-Oct. Greece. 



filipendullna, Lam. (A. Eupatbrium, Bieb.). Height 

 4-5 ft. : stem erect, furrowed, almost hairy: fls. in dense, 

 convex compound corymbs, often 5 in. across. June- 

 Sept. Orient. Needs staking. 



tomentdsa, Linn. A woolly, carpet-like plant for rock- 

 eries. Height 8-10 in. Eu., Orient, N. Am. B.M. 498. 

 Gn. 52, p. 421. 



AA. Rays 6-20, as long as or longer than the rotund 

 or campanulate involucre; fls. white. 



B. Lvs. not divided. 



Ptannica, Linn. SNEEZEWORT. Height 1-2 ft. : Ivs. 

 serrate : fls. in loose corymbs ; all summer. N. Temp. 



Sibirica, Ledeb. (A. Mongdlica, Fisch. A. ptarmi 

 coldes, Maxim.). Denser than the last, more erect and 

 rigid: height l%-2 ft. : fls. larger and in more com- 

 pact corymbs. July-Sept. 



BB. Lvs. deeply divided. 



macrophylla, Linn. Height 3 ft. : Ivs. long, broad. 

 July. Alps. Gn. 52, p. 421. Better suited to shrubbery 

 than herbaceous border. 



21. Acer Ginnala. 



Reg. Its full-double var., the Pearl, Fig. 22, is much 

 used for cut-flowers and in cemeteries, and is one of 

 the most popular of all hardy herbaceous plants. There 

 are other varieties. 

 2 



22. Achillea Ptarmica, var. The Pearl. 



Clavenae, Linn. (Commonly spelled A. Clavennce. A. 

 argSntea, Hort., not Lam.). Dwarf, tufted, hoary alpine 

 plant : height 10 in. : Ivs. dentate at apex ; segments 

 obtuse: fls. spring and summer. Eu. B.M. 1287. Gn. 

 52, p. 421. Thrives in sand. 



A. Ageratum, Linn. Fls. yellow. Eu. A.ageratifblia, Benth. 

 & Hook. (Anthemis Aizoon). Tufted, woolly, silvery gray: fls. 

 white. May-June. Greece. A. alplna, Linn. Lvs. pinnatifid: 

 fls. white. May-June. Alps. A. asplenifdlia, Vent. Lvs. pin- 

 nate, smooth: fls. white. There is a red-flowered form. Hab.? 

 A. atrdta. Linn. Dwarf, tufted, aromatic: radical Ivs. petio- 

 late; cauline Ivs. pinnatisect: fls. white. Alps. A. decolbrans, 

 Schrad. Lvs. undivided: fls. pale yellow. July. Eu. A.Herba- 

 rbta. All. Dwarf, tufted, aromatic, alpine : Ivs. undivided, ser- 

 rate: fls. white. May-June. A. Ligustica,A\l. Lvs. pinnatifid: 

 fls. white. Eu., Orient. A. moschdta, Jacq. Lvs. smooth, pin- 

 nately parted, lobes uncut : fls. white. Eu. A. ndna, Linn. 

 Dwarf, hairy, woolly, aromatic : Ivs. pinnatisect : fls. white. 

 Spring. Eu. Used in making Chartreuse. A. odordta, Linn. 

 Lvs. pinnatisect; lobes cut : fls. white. A. pectindta, Willd. 

 Fls. pale yellow. A. rupestris, Huter. Lvs. % in. long, linear- 

 spatulate, entire. S. Italy. B.M. 6905. A. santolinoldes, Lag. 

 1 ft.: Ivs. pinnatisect, hairy-woolly: fls. white. July. Spain. 

 A. serrdta, Retz. Lvs. pinnatifid, woolly: fls. white. Siberia? 

 A . umbelldta, Sibth. Very woolly rock plant, 4-5 in. : Ivs. pin- 

 natifid ; lobes oblong, bluntish, entire or serrate : fls. white. 

 June. Greece. A. Valeslaca, Stein. Lvs. pinnately parted: fls. 

 white. June-Aug. Eu. ^. ^ 



ACHIMENES ( Greek, cheimaino, to suffer from cold ) . 

 Gesneracece. Greenhouse herbs, allied to gloxinias, na- 

 tive to tropical Amer. Fls. axillary; the 5 caiyx lobes 

 narrow and short ; the corolla tube cylindrical and limb 

 spreading; anthers 4, connivent in the corolla tube, and 

 a rudiment of a fifth stamen ; style long, usually ex- 

 serted, the stigma dilated or obscurely 2-lobed. 



The rhizomes of Achimenes should be potted about 

 the first of April, in soil which has been made loose and 

 open by the addition of about one-third leaf -mold. Six 

 or seven of these in a 5-inch pot, or nine or ten in a 

 6-inch one, make specimens of the most convenient 

 size. The young growth appears in about eighteen days, 

 and from that time onward great pains should be takeu 

 to keep the soil moist, for a single severe drying will 

 ruin the plants. Liquid manure should be given twice 



