1804 



THUYA 



compact, globose shrub, golden yellow in spring, chang- 

 ing to bright green. Vitr. aurea conspicua, Hort. More 

 erect, the intense golden foliage partially suffused with 

 green. Var. aurea nana, Hort. Golden yellow foliage 

 and very dwarf and compact habit. Var. aureo-varie- 

 gata, Hort. Of pyramidal habit: branchlets variegated 

 with yellow. Var. decussata, Beissn. & Hochst. (Eet- 

 inlspora juniperoides, Carr. Chamacyparis decussata, 

 Hort.). Fig. 2094. Dwarf, globose form: lvs. linear- 

 lanceolate, spreading, stiff, acute, bluish green. A juve- 

 nile form; see, also, Retinispora. Var. elegantissima, 

 Gord. Of low, columnar habit, bright yellow in spring, 

 yellowish green afterwards. Var. falcata, Lindl. Of 

 dense, pyramidal growth, deep green, the horns of the 

 strobiles curved backwards. Var. filifdrmis stricta, 

 Hort. Round-headed, dwarf bush, with upright, thread- 

 like branches. Var. gracilis, Carr. Of pyramidal, 

 somewhat loose and slender habit, with bright green 

 foliage. Var. freneloldes and var. Nepalinsis are hardly 

 different from this. Var. Meldensis, Veitch. Of col- 

 umnar pyramidal, somewhat irregular growth: lvs. aci- 

 cular, bluish green, sometimes passing into the normal 

 form. Intermediate between the var. decussata and the 

 type. Var. pendula, Pari. (var. filifdrmis, Henk. & 

 Hochst. T. pendula, Lamb. T. filifdrmis, Lindl.). 

 Branches pendulous, thread-like, sparingly ramified, 

 and with the lvs. wide apart and acuminate. Var. funi- 



THYMUS 



spreading and often nodding at the ends: branchlets 

 one-fifth to one -fourth in. broad: lvs. glossy green 

 above, marked with a broad white band beneath, those 

 of the upper and under side obovate-oblong. obtuse, 

 adnate except at the apex, the lateral ones spreading, 

 ovate-lanceolate and curved (hatchet-shaped), obtusish: 

 scales of staminate fls. 6-10. much thickened at the ob- 

 tusely pointed apex, the middle ones fertile and with 

 3-5-winged seeds under each scale. Japan. S.Z. 2:119, 

 120. G.C. II. 18:55«.-Var. nana, Sieb. & Zucc. (T. la- 

 tivirens, Lindl. ), Dwarf form, with more slender and 

 narrower branchlets of a lighter green. Var. variegata, 

 Fortune. Tips of branchlets creamy white. 



T. borralis, Hort.=ChamseeyparisNutkaeusis.— T. Standishi. 

 Gord.=Thuja Japonka. Alfred Rehder. 



THYME. See Thymus. 



THYME, WATER. See Elodea. 



THYMUS (classical name of doubtful origin, perhaps 

 from the Greek for incense). Labiates. Thyme. Prob- 

 ably about 50 species, although more have been de- 

 scribed, all natives of the Old World and chiefly of 

 the Mediterranean region. They are low, half-shrubby 

 perennials, although usually herbaceous or nearly so in 

 the North. Lvs. small, opposite, simple and mostly en- 



,w \s» So 







2508. Creeping Thyme — 



cul&ta, Hort., and var. intermedia, Carr., are interme- 

 diate forms between this var. and the type. Var. pyra- 

 midalis, Endl. Of pyramidal habit, with bright green 

 foliage; one of the tallest and hardiest vars. Var. sem- 

 peraurescens, Veitch. Dwarf, globose; the golden hue 

 of the foliage remains throughout the whole year. Var. 

 Sieboldi, Endl. (var. Japdnica, Sieb., var. nana, Carr. 

 var. Zuccarinikna, Veitch. Var. compdcta, Beissn.). 

 Globose, compact, low form, bright green. 



Alfred Rehder. 



THUYOPSIS (Greek, Thuya-Hie). Coniferw. Ever- 

 green ornamental pyramidal treejor shrub, with spread- 

 ing branches, the branchlets arranged in a frond-like 

 fashion, much flattened and clothed with scale - like 

 glossy green foliage. Thuyopsis is one of the most 

 beautiful Japanese conifers, and is well adapted for 

 planting as a single specimen on the lawn wherever it 

 can be grown successfully. It is hardy as far north as 

 Mass., but usually suffers from summer drought. It 

 thrives best in a sheltered and shaded position and in 

 moist loamy soil, and seems to grow to perfection only 

 in cool and moist climates. Prop, by seeds, also by cut- 

 tings and by grafting like Thuya. Plants raised from 

 cuttings usually grow into bushy, round-headed plants. 

 Plants grafted on Thuya are said to be short-lived. 

 Seedlings are therefore to be preferred. The genus 

 contains only one Japanese species, closely allied to 

 Thuya and chiefly distinguished by the 4-5 ovules 

 under each scale. The yellowish white, close and 

 straight-grained wood is very durable and is used in 

 Japan in boat- and bridge-building. 



dolobrata, Sieb. & Zucc. (Thuya dolobrata, Linn.). 

 Pyramidal tree, attaining 50 ft. or sometimes shrubby: 

 branchlets irregularh;.whorled or scattered, horizontally 



; Serpyllu 



(XK). 



tire. The calyx is ovate or ovoid, hairy in the throat, 

 5-toothed and 2-lipped, about 10-1.3-nerved, usually de- 

 clined in fruit : corolla small, 2-lipped, the upper lip 

 2-toothed anfl erect, the lower one 3-cleft and spreading: 

 stamens 4, mostly in 2 pairs and usually exserted. The 

 flowers are mostly in shades of blue or purple, but are 

 sometimes white; they are borne in whorls, forming a 

 terminal spike or head-like cluster. Thymes are erect 

 or prostrate plants with strong mint-like odor. Most of 

 the species are grown as a ground cover on banks, in 

 borders or rockwork. The creeping or prostrate habit, 

 ability to persist in dry places and poor soils, and the 

 colored or woolly foliage of some species make them 

 adaptable to a variety of uses. The common T. Ser- 

 pyllum is evergreen. T. vulgaris is the Thyme of sweet 

 herb gardens, being prized in cookery. All Thymes are 

 easily propagated by means of division, although seed- 

 lings may sometimes be used to renew plantations of 

 some of the species, particularly of T. vulgaris. Sev- 

 eral names occur in American catalogues, all of which 

 seem to be referable to three species, one of which is 

 not a true Thymus. See Sage, where general culture 

 of such herbs is given. 



vulgaris, Linn. Common Thyme. Plant erect, 

 the base sometimes decumbent, 1-2 ft., the branches 

 stiff and woody, usually white-pubescent: lvs. sessile, 

 linear to ovate-lanceolate, acute, the margins more or 

 less revolute: fls. small, lilac or purplish, in terminal 

 interrupted spikes. S. En.-An old garden plant, being 

 grown as a sweet herb. The leaves and shoots are used 

 for seasoning. It is well to renew the plants from seeds 

 every two or three years. There are varieties with broad 

 and narrow leaves. 



Serpyltum, Linn. Fig. 2508. Mother of Thyme. 

 Creeping Thyme. Creeping, wiry-stemmed, slightly pu- 



