1145 



Eijc CrsaSurw of 33ntamj. 



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cell containing two slightly cringed seeds 

 T. neriifolia has large saffron-coloured 

 flowers three inches in length, and is 

 commonly cuftivated in Tropical America 

 as an ornamental garden shrub, or for mak- 

 ing hedges. Its bark is reputed to possess 

 powerful febrifugal properties, while its 

 milky juice is a dangerous poison, and its 

 fruits are likewise regarded as noxious, 

 though, according to Dr. Seemann, a 

 gentleman in Panama ate four of them 

 when a boy, without injury. [A. S.J 



THEYA. An Indian name for Shorea 

 robusta. 



THIBAUDIA. A beautiful genus of 

 vacciniaceous shrubs, chiefly found in 

 Peru and New Grenada, though the species 

 of one group, forming the genus Agapetes \ 

 of some authors, are met with in India, 

 Java, and Madagascar. They have leathery 

 evergreen leaves, and axillary racemes 

 I (sometimes collected in great fascicles at 

 i the ends of the shoots) of very handsome , 



tubular flowers, the colour of which is 

 , frequently scarlet, sometimes tipped with 

 I green or yellow. The calyx-tube is con- 

 nate with the ovary, its limb four- ' 

 ! toothed ; the corolla is conically tubulose, 

 with a five-toothed limb ; the stamens are 

 ten in number, the anthers two-horned at 

 I the apex , and the ovary is five-celled, with 

 numerous ovules in each cell. The globose 

 berry is crowned by the limb of the calyx. 

 Some of the species are to be met with in 

 the hothouses of this country. [T. M.] 



THINOGETON. A genus of Atropacece 

 (Solanacece) comprising an herbaceous 

 plant, native of the seashores of Columbia. 

 The calyx is five-toothed-; the corolla funnel 

 or bell-shaped; the stamens five, of une- 

 qual length, the anthers opening longitu- 

 dinally ; and the ovary two-celled, sur- 

 mounted by a style, which is dilated at the 

 top. The fruit is berry-like, and enclosed 

 in the enlarged calyx. The generic name is 

 derived from the Greek words thin ' the 

 seashore 'and geiton 'near to,' in reference 

 to the habitat of the plant. [M T. MJ 



THISANTHA. A small group of plants 

 formerly included in and forming a sec- 

 tion of Crassula, the type of the order of 

 houseleeks It is entirely confined to 

 South Africa, and is composed of little 

 annual succulent herbs, with forking 

 stems, opposite leaves, and small flowers— 

 the lower ones solitary in the forks of the 

 stems, and the upper clustered. They 

 have a five-cut calyx, a five-parted corolla, 

 five stamens alternate with and shorter 

 than the corolla segments, and five free 

 ovaries (without scales) ripening into as 

 many follicles, each containing not more 

 than two seeds. [A. S.] 



THISMIA. A small leafless erect herb 

 from the Tenasserim coast, the place of 

 the leaves occupied by small scales ; the 

 flowers few, in a terminal raceme, rather 

 large for the plant, of a yellow colour va- 

 I with red. It forms a genus of 

 Burmanniacece, distinguished by its regu- 



lar campanulate perianth, with six lobes, of 

 which five are produced into long tails ; by 

 its six stamens ; and by its one-celled 

 ovary, with three parietal placentas. 



THISTLE. Carduus. — , BLESSED. 

 Gnicus benedictus. — , CARLINE. Carlina. 

 — , COTTON. Onopordon Acanthium. — , 

 CREEPING. Cirsium arvense. _, DIS- 

 TAFF. Carthamus lanatus. — , FISH- 

 BONE. Cliamcepeuce Casabonce. — , FUL- 

 LER'S. Dipsacus FuUonum. — , GLOBE. 

 Echinops. — , GOLDEN. Scolymiis; also 

 Protect, Scolymus. . — , HOLY, Cardans 

 (Silubvm) marianus. — , HOUSE. Cirsium. 

 —.JERSEY. Centai, rra Isnardi. — /MELON. 

 Melocactus. — , MEXICAN. Erythrokena 

 conspicua. — , MILK. Silybum (or Carduus) 

 marianum. — , MUSK. Carduus nutans. 

 — , OUR LADY'S. Silybum marianum. — , 

 PLUME. Cirshim ; also applied to Carduus 

 lanceolatus, and some other species having 

 a feathery pappus. —.SAFFRON. Cartha- 

 mus tinctorius. — , ST. BARNAtY'S. 

 Centaurea solstitialis. — , SCOTTISH. Ono- 

 pordon Acanthium., one of the plants con- 

 sidered to he the emblem of Scotland. 

 — , SOW. Sonchus, —, SPEAR. Carduus 

 lanceolatus, generally regarded as the na- 

 tional emblem of Scotland. — , STAR. 

 Centaurea Calcitrapa. — , SYRIAN. Noto- 

 basis syriaca. — , TORCH. Cereus. — , 

 YELLOW Argemone mexicana. 



THITSEE. Melanorrhcea usitatissima, 

 the Varnish-tree of Burmah. 



THLADIANTHA dubia is the repre- 

 sentative of a genus of Cucurbitacece from 

 China and India, forming a tall scram- 

 bling pale-green pubescent branched 

 climber, with simple tendrils, broadly 

 ovate-cordate irregularly toothed leaves, 

 and bright-yellow axillary flowers, which 

 are dioecious. The males are dimorphous, 

 with a campanulate calyx-tube, and large 

 complanate sepals — the larger flowers 

 with the petals nearly free erect, forming 

 a campanulate corolla longer than the 

 sepals, and the smaller ones having the 

 petals shorter than the sepals; the anthers 

 are five, one-celled. The females have the 

 calyx and corolla of the males, with their 

 short style terminated by reniform capi- 

 tate stigmas. The fruit is oblong, very 

 succulent, with about twelve longitudinal 

 ribs connected by network, between which 

 the surface is hollowed. The fruit is eaten 

 by the natives of the Himalayas. [T. M.] 



THLASPI. A genus of unpretending 

 herbaceous plants giving name to the 

 tribe Thlaspideaz of cruciferous plants. 

 The characters are .-—Pouch laterally com- 

 pressed, notched, valves winged at the 

 back; cells two to eight-seeded. T arvense, 

 the Field Penny Cress or Mithridate 

 Mustard, occurs as a weed in cornfields, in 

 some places in great abundance. It grows 

 to the height of from ten to twelve inches, 

 with bright-green oblong leaves, which 

 are toothed, and at the base arrow-shaped , 

 the stems are slender, and bear numerous 

 minute white flowers, which are succeeded 

 by very large orbicular poucnes, rendering 



