206 EXTRACTS. 



jaisud by Mr. Wheeler, of Warminster. Colour: purple, yellow, white, 

 and blue. A rich light soil, and a rather cool and shady situation, with occa- 

 sional watering in hot weather, will be found conducive to the production of 

 line and well-colonred flowers. 



2. Verbena radicans, rooting vervain. Didynamia, Angiospermia. Verbe- 

 iiace;p. A native of Chile; perennial; introduced in 1832; height, 6 inches; 

 ilowers from June to September; colour, ro&e. As the joints take root, in 

 August cut them oft', pot them, aud keep them in a cold frame daring winter. 

 Turn them out in April, into a light rich soil, and warm as peat, and they 

 will quickly become oruamental. The name of this genus was one applied 

 by the Romans to some of their altar herbs; radicans, from the Latin radix, 

 a root, is a term suggested by its habit of emitting roots from the joints of 

 the stems. 



3. IJimiiemaitia fvmai-io'fulia, fumitory-leaved Hunuemania. Polyandria, 

 Mouogynia. Papaveracea;. A native of Mexico; annual; introduced in 

 1827. Flowers from June to September; colour, yellow. Sow its seeds in 

 autumn. The young plants will bear full exposure through a mild winter; 

 but for security against disappointment, a pot of seedlings should have occa- 

 sional protection. Cuttings do not root; nor is division generally praclicable. 

 Hunuemania, from J. IIunne.man, a zealous botanist. 



4. C'alannnclte cartilea, two-coloured Catananche ; variety, bicolor. Syn 

 genesia, Polygamia a^qualis. Composita;- A native of South Europe; per 

 ennial ; hybrid origin; height, two feet and a half; flowers from July to 

 September; colour, white and purple. The present variety originated in the 

 garden of Mr. Sjiith, nurseryman, of AVorcester. The word Catananche 

 is compounded from the Greek language, to imply compulsion, or powerful 

 impulse, in allusion to an imaginary quality formerly attributed to it. The 

 specific name, cairuleaj signifying blue, was given to the original plant. 



Oil the Culture of the Rose. By J. Mantell. 



The Rose thrives best in a rich, strong, loamy soil, and is generally propa- 

 gated by layers, when the true sorts are intended to be preserved. The 

 Banksiie, Nuiselle, and Jiosa indka, with its varieties, are propagated by cut- 

 tings. The Province, or cabbage-rose, may be increased by suckers; and 

 when standards, or a variety of coloured flowers, upon the same tree are 

 required, tlien buddiug or grafting u^ust be had recourse to. 



Propagation hy seed is practised where new varieties are wanted : the seeds 

 are usually sown about the latter end of February, and will come up about 

 the middle of July; the young seedlings may be separately planted out the 

 following spring. 



The operation of layering is thus performed : — About the beginning of July, 

 just whL-n the tree is coming into flower, being provided with a sharp kuife 

 and a few hooked pegs, commence by taking hold of the shoot intended to be 

 layered, aud making an incision just below the bud, on the upper side of the 

 branch, pass the kuife half way up to the next bud ; then gi\e the branch a 

 slight twist, that the part so cut may rest upon the soil; lix in the peg, to 

 hold the layer in its place, aud cover it up with soil, to about the depth of 

 two inches. The custom of layering without the incision so greatly retards 

 the striking of the roots, that frequently they cannot be detached from the 

 stools till the following spring ; whereas, if the incision be made, Ihey will 

 be ready, in favourable seasons, in two or three months. 



Cuttings, planted in leaf mould and light loam, in the month of May, and 

 placed in a northern aspect, under a hand glass, strike root readily, and may 

 be potted oflT in the autumn. There are very ii^w, except the China Rose and 

 its varieties, that succeed by this mode of pr(>])agation. 



Suckers. — All the common varieties admit of being propagated by suckers 

 or byj'division of the root. 



litidding is usually performed in the month of July, and by thib operation 

 it is sujipoiLd lliat the flowers arc rendered more brilliant aud durable, Al- 



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