AN ENCYCLOPAEDIA 
OF HORTICULTURE. 23 
Teucrium—continued. 
entire, oval or lanceolate, green, pubescent above, white-woolly 
beneath. Stems shrubby, erect. h. 1ft. Western Mediterranean 
region. Hardy. Cats have a strange liking for this plant. 
T. orchideum (Orchid-like). A synonym of T. bicolor. 
T, orientale (Eastern). fi. blue, disposed in a loose, sometimes 
hispid-pilose panicle ; pedicels or peduncles one-flowered, nearly 
twice as long as the acutely-toothed calyx. July. /. once or 
twice pinnatisect, the lower ones liin. to 2in. long, broadly ovate 
in outline, the floral ones minute; segments linear, entire or 
incised. A. lft. Levant, 1725. A hardy, sometimes loosely 
oo or canescent, erect perennial. (B. M. 1279; L. B. C. 
) 
TEYSMANNIA (so called in honour of J. E. Teys- 
mann, a Dutch gardener, who published a “Catalogus 
Plantarum,” in 1838). ORD. Palme. A monotypic genus. 
The species is a dwarf, unarmed, stove Palm, closely 
allied to Corypha, from which it differs mainly in habit. 
The natives of Sumatra use the leaves of this Palm for 
thatching their houses, a purpose for which, from their 
large size and entire form, they are admirably adapted. 
For culture, see Corypha. 
T. altifrons (tall-leaved). fl., spathes papery-coriaceous, sheath- 
ing the fuscous-tomentose peduncle and the spadix branches; 
spadix rather short, with deflexed branches. fr. as large as 
an apple, globose or depressed-globose, one-celled, one-seeded. 
l. erect, elongated-rhomboid, ae Aa acute at base, 6ft. to 7ft. 
long, 14ft. wide, induplicately plicate, laciniated on the margins, 
the segments obtusely bifid; petioles carinate at back, obso- 
letely concave in front, the angles rounded, uncinate-prickly. 
Caudex subterraneous, Sumatra. 
THALAMIA. A synonym of Phyllocladus (which 
see). 
THALAMIFLOROUS. When the stamens arise 
immediately from the thalamus. 
US. The receptacle in a flower; the part 
on which the carpels are placed. 
THALASIUM. A synonym of Panicum (which see). 
THALIA (named in honour of J. Thalius, a German 
physician and botanist, who died in 1588). Syn. Peronia. 
ORD. Scitaminee. A genus embracing about five species 
of stove, greenhouse, or hardy herbs, natives of tropical 
America, one species extending as far as the Southern 
United States, and one being found in tropical Africa. 
Flowers in pairs, pedicellate, loosely spicate; sepals 
three, free, equal, membranous, equalling or much shorter 
than the corolla; petals three, free or very shortly 
connate at base, equal or the dorsal one scarcely 
broader ; andreecious tube short, the lobes petaloid, very 
irregular; panicle terminal; bracts spreading under the 
branchlets, deciduous. Leaves few, ample; floral ones 
sometimes conformed. T. dealbata, the only species that 
calls for description here, is an aquatic plant, sufficiently 
hardy to withstand the severity of our winters, provided 
it be planted about 2ft. beneath the surface of the 
water. It is a very elegant subject for aquaria. Propa- 
gation may be effected by division of the rootstock. 
T. dealbata (whitened). fl. prp, small ; valves of the spathe 
unequal, ovate, coriaceous; spikes erect; panicle erect, dense, 
smooth, the branches not longer than the lanceolate, deciduous 
bracts at their base; scape terete, Reed-like, 3ft. to 5ft. high. 
June to September. 7. distichous, long-petiolate, cordate-ovate, 
acute, bin. to Yin. long; petioles 1ft. to 2ft. long. South Caro- 
, œc., 1791, Plant dusted over with a minute, white powder ; 
otherwise smooth. See Fig. 20. (B. M. 1690.) 
T. ea (blood-coloured). A synonym of Stromanthe 
sanguinea, 
THALICTRUM (the old Greek name used by 
Dioscorides, probably derived from thallo, to grow green; 
alluding to the bright colour of the young sprouts). 
Meadow Rue. Orp. Ranunculacee. A genus embracing 
about thirty species of hardy herbs, with perennial stems, 
nearly all inhabiting North temperate and frigid regions. 
Flowers green, yellow, purple, or white, often polygamous, 
paniculate or rarely racemose, usually small with the 
anthers conspicuously exserted, or rarely larger with 
smaller anthers; involucre and petals wanting; sepals 
Thalictrum—continued. 
four or five, petaloid; achenes often compressed. Leaves 
ternately decompound; cauline ones, when present, alter- 
nate. Among the species, three of which are included in 
the British Flora, there are several well deserving of a 
place at the back of the flower border. A representative 
selection of the most desirable kinds is presented below. 
Any fairly good garden soil is suitable. The plants may 
be multiplied by divisions. 
T. alpinum (alpine). f. few; sepals four, purplish ; raceme 
drooping, afterwards erect, simple. July and August. l. biter. 
nate ; leaflets {in. to jin. long, sub-orbicular, glaucous beneath, 
obtusely lobulate. Stem 4in. to 10in. long, often stoloniferous. 
wg 2 si Asia, and North America. (B. M. 2237; 
y. En. B. 2. 
T. anemonoides (Anemone-like).* Rue Anemone. fl. several in — 
an umbel; sepals five to ten, white, rarely pinkish, oval, io 
long. Early spring. J. bi- or triternately compound ; | 
roundish, cordate at base, long-petiolulate. Stem arising from a 
cluster of thickened, tuberous roots. A. 6in. North Ameri 3 
1768. (I. H. 1829, 211; S. B. F. G. ser. ii. 150; B. M. 866 an 
L. B. C. 964, under name of Anemone thalictroides.) 
T. a. flore-pleno (double-flowered). This only differs from the 
type in haying double flowers. (F.d. S. 1155; L. B. C. 770.) 
Fig. 20. THALIA DEALBATA. 
