480 Select Plants for Industrial Culture and 



Thuya Japonica, Maximowicz. 



Japan. Closely allied to T. gigantea. Dr. Masters has pointed 

 out the characteristic differences between the two in an essay on 

 Conifers of Japan, published in the Journal of the Linnean Society, 

 1881. 



Thuya occidentalis, Linne. 



North -Am erica, extending from Carolina to Canada. Northern 

 White Cedar or Arbor Yitee. A fine tree, to 70 feet high. Bears 

 the frosts of Norway northward to lat. 63" 52 '. The wood is 

 reddish or yellowish, fine-grained, very tough and resinous, light, 

 soft, durable, and well fit for building, especially for water- work 

 and railway-ties, also for turnery and machinery. Michaux men- 

 tions, that posts of this wood last forty years ; a house built of it 

 was found perfectly sound after sixty years. The tree prefers moist 

 soil ; it is valuable for copses ; it can also be trained into garden- 

 bowers. Dr. Porcher says, that it makes the finest ornamental 

 hedge or screen in the United States, attaining any required height 

 and being very compact and beautiful ; such hedges indeed were 

 observed by the writer himself many years ago in Bio de Janeiro. 

 The shoots and also an essential oil from this tree are used in 

 medicine ; the bast can be converted into ropes ; the branches serve 

 for brooms. 



Thuya orientalis, Linne. (Biotia orientalis, Endlicher.) 



China and Japan. The Chinese " Arbor- Vitae " of gardens. 

 Though seldom exceeding 20 feet in height, this common garden- 

 plant is mentioned here, as it will admit of clipping for hedge- 

 growth, and as the " Fi-Moro " variety should on account of its 

 elongated slender and pendent branches be chosen extensively for 

 cemeteries. 



Thymelaea tinctoria, Endlicher. (Passerina tinctoria, Pourret.) 



Portugal, Spain, South-France. A small shrub, which yields a 

 yellow-dye. Cursorily it may be noted here, that some of the 

 Australian Pimeleae contain a blue pigment, which has not yet been 

 fully tested. Their bark produces more or less of daphnin and of 

 the volatile acrid principle, for which the bark of Daphne Mezereum 

 (Linne) is used ; these are remarkably developed in the South- 

 Eastern Australian Pimelea stricta (Meissner) . The bark of many 

 is also pervaded by a tough fibre, that of the tall Pimelea clavata 

 (Labillardiere), a West- Australian bush, being hence particularly 

 tenacious, and used for whips. 



Thymus capitatus, Hoffmannsegg and Link. (Satureja capitata, Linne.) 

 Around the whole Mediterranean Sea. Since the time of Hippo- 

 crates, Theophrastos and Galenus this small scented shrub has been 

 employed in medicine. According to Dr. Savastano, an important 

 honey-plant. 



