AND GENERAL HORTICULTURE. 



TEM 



easy matter by placing the proper number of 

 four-inch pipes in a green-house to suit the 

 different temperatures for example, in our 

 own establishment, where our houses are uni- 

 formly twenty feet wide, for a temperature of 

 from 35° to 40"" in coldest weather, we use four 

 runs of pipes, that is, two pipes on each side ; 

 for 40° to 45° we use five pipes ; for 45° to 50° we 

 use six pipes ; for 55° to 60° we use eight pipes ; 

 ^nd for 65° to 70° we use ten pipes. 



It is true, we too often see collections of 

 hot-house and green-house plants inter- 

 mingled, and attempts made to grow them 

 which, of necessity, result in failure to one or 

 the other. The temperature to grow, in 

 healthy condition, Dracaenas, Crotons, Coleus, 

 3ouvardia3 or Poinsettias (hot-house plants), 

 would not be likely to maintain Azaleas, Ca- 

 mellias, Verbenas, Carnations or Geraniums 

 long in a healthy state. The same rules foli 

 'low as to the propagating-house, showing the 

 necessity of observing the requirements of 

 their different natures. See "Propagation of 

 Plants by Cuttings. " 



The subject is one that relates to so many 

 varieties and different conditions of organism 

 at the different seasons of growth, that it is 

 Impossible to convey to the' inexperienced 

 what these varieties and conditions are ; but 

 our object is to impress upon inexperienced 

 readers what we have long believed to be an 

 important truth, that the supplying the 

 proper conditions of temperature to plants 

 under glass, according to their different na- 

 tures and conditions, has as much to do with 

 their welfare as any other cause, if not more ; 

 and that often, when ascribing the unhealthy 

 state of a plant to uncongenial soil or defec- 

 tive drainage, or the "damping off" of some 

 favorite cutting to the way it was cut or the 

 sand it was put in, the true and sole cause of 

 failure was nothing more tlian condemning 

 them to an atmosphere uncongenial to their 

 nature. 



Templeto'nia. Named in honor of John Temple- 

 ton, an Irish botanist. . Nat. Ord. LeguminoscB. 

 A genus of New Holland plants, with red or 

 yellow axillary flowers. T.retiisa,the "Coral 

 Bush," and two or three other species are 

 grown in green-houses for their showy flow-, 

 ers. Increased by cuttings of the young 

 wood. 



Te'naris. Said to be the native name in South 

 Africa. Nat. Ord. Asclepiadacece. 



A small genus of erect, slender, green-house, 

 perennial herbs, natives of southern Africa. 

 T. rostrala, the only introduced species, has a 

 whitish corolla, densely covered towards the 

 base with purple dots. It forms a slender 

 bush about one and a half feet high. Intro- 

 duced from east tropical Africa in 1885. 



Tendril. The twisting, thread-like process by 

 which one plant clings to another. 



Teosinte. Euchlana aixurians. An introduc- 

 tion from Mexico, the seeds of which were 

 received here in 1879 from the Royal Gardens 

 at Kew, England. It had been previously 

 sent to the British colonies in Africa and 

 other tropical latitudes, where the reports 

 from it as a fodder crop were of the most ex- 

 travagant kind. When fully developed, it 

 reaches a height of twelve feet, each seed 

 making a plant having from one hundred to 

 one hundred and twenty shoots, when planted 



TES 



five or six feet apart. It somewhat resembles 

 the Pearl Millet, and, like it, will admit of re- 

 peated cuttings during the growing season. 

 Although perennial, it will probably do better 

 if treated as an annual, sowings to be made 

 every season, as any plant of that luxuriance 

 would quickly exhaust the soil if allowed to 

 remain the second year. As it is closely al- 

 lied to our Maize, or Indian Corn, it will 

 likely be best suited for the Southern States. 

 Syn. Reeana luxuriuns. 



Tephro'sia. Hoary Pea. From tephros, ash- 

 colored ; in allusion to the color of the foliage 

 of some of the species. Nat. Ord. Legumi- 

 nosoB. 



An extensive genus of hardy and green- 

 house, herbaceous plants. Of the hardy spe- 

 cies, T. Virginiana is the more common and 

 beautiful. It is usually found in clumps from 

 one to six feet in diameter, growing on dry, 

 sandy soils, in which it succeeds finely, and 

 is a valuable border plant. Its flower stalks 

 are about a foot high, and flowers creamy 

 white and rosy purple, produced in terminal 

 clusters in July. It is very common in the 

 Northern States, and is far more showy and 

 attractive than many of our prominent gar- 

 den flowers. The tender varieties, requiring 

 the protection of the green-house, are diffi- 

 cult to manage, and do not repay the trouble 

 by their short season of flowers. 



Terebinth Tree. A common name for Pistachia 

 Terebinlhxis. 



Teres, Terete. Tapering; free from angles; 

 cylindrical, or nearly so. 



Terminal. Borne atj or belonging to, the ex- 

 tremity or summit. 



Termina'lia. Myrobalan Tree. Olive-bark Tree. 

 From terminus, end ; the leaves are in clusters 

 at the ends of the branches. Nat. Ord. Com- 

 bretacecB. 



An extensive genus of tropical evergreens, 

 found occasionally in botanical collections. 

 The fruits of several of the species form an 

 important article of commerce in India, being 

 extensively used for tanning and dyeing pur- 

 poses. They are known in commerce under 

 the name of Myrobalans, and are used by 

 calico-printers for the production of a perma- 

 nent black. 



Ternate. Growing in threes ; applied to a leaf 

 consisting of three leaflets. 



Ternstroe'mia. The typical genus of the Nat. 

 Ord. TernstromiacecB, comprising about twen- 

 ty-five species, inhabiting tropical Asia and 

 America, where they form evergreen shrubs 

 or trees. The flowers are not very showy, 

 but a few of the species are grown for their 

 ornamental foliage. They can be propagated 

 by cuttings of the half-ripened wood. 



Ternstroemia'ceae. A natural order of trees or 

 shrubs, chiefly tropical, and many of them of 

 great beauty. The most important economic 

 product'of this family is Tea {Thea Ckinensis), 

 by many botanists included under Camellia as 

 C. theifera, now so largely used all over the 

 world. The order comprises about thirty 

 genera and two hundred species; Gordonia„ 

 Sluartia and Camellia are good examples. 



Tessellated. Checkered ; when colors are dls* 

 posed in small squares. 



Testa. The skin, or integument of a seed^ 



