UTIOX nORTICOLE. 



rmed in the 

 I M. Verlot, 



. it a great 

 to become 



/ 



■s, 7 Medlars, 

 Apples, 91 



Alph. de 

 ier, where- 



M-i d upon 



«hs, ;u id present physical 

 rent places have undergone 

 i flora once reached as fai- 

 ls prove that the vegetation 

 istunt period of a tropical 

 endeavoured to devise a 

 n the constitutions of plants 

 aridity. 

 nded upon their physical 



th moisture). Plants inha- 

 ling to the thirteenth par- 



)• The same temperature, 

 gions, from the twentieth 

 very extensive area, 

 temperature ranging from 

 rod similar regions, 

 mperature about 55» Fahr. 



'"' ;,Ul I Antarctic regions, 



'st very artificial and some- 



what arbitrary. But are not all systems more or less so? 

 It would be necessary to follow the author through his 

 arguments to appreciate his dictum, that time affects the 

 constitution in a less degree than their variations inform. In 

 our catalogues, says he, we find a hundred different variations 

 in form for one in earliness. The Date has been cultivated 

 in Italy for upwards of 3000 years , and to the present day 

 does not yield good fruit. Again, gardeners trouble themselves 

 little about the botanical position of a plant , but its native 

 country is a matter of the first import. It is the exotic plant 

 whose period of growth is of shorter duration than those 

 of our climate, that present the greatest difficulties to the 

 cultivator. This is a constitutional and hereditary peculiar- 

 ity, and is a great though not insurmountable obstacle in 

 the way of their successful cultivation. 



It will be seen from the foregoing summary that M. De 

 Candolle's memoir is of equal interest to both botanists 

 and horticulturists. We shall take another opportunity to 

 speak of his conclusions. 



— Floweeing of Eeiocaulons. — These highly curious 

 plants are very difficult to cultivate. A great many species 

 have been introduced from the tropics , but all have been 

 lost again. Their rosettes of leaves give them some resem- 

 blance to the Bromeliaceae, or large specimen of Luzula 

 sylvatica. One, however, in the Luxembourg garden, sent 

 from Brazil, has flowered profusely this year. The seed 

 was sown in fresh moss , and quickly germinated. The plants 

 have been kept in a greenhouse since 1871, and this season 

 one of them has flowered well. The others will probably 

 soon do the same. They will apparently do well if treated in 

 the same way as Sarracenias. 



— Unpublished Lettees of Celebeated Botanists. — 

 M. Roumeguere , a botanist of Toulouse , has for many years 

 been engaged in collecting autographs of ancient and modern 

 botanists. He has already brought together a considerable 

 collection of these interesting and valuable documents in 

 the history of plants ; and at the last meeting of the Bota- 

 nical Society of the Pyrenees he was able to show some 

 extremely curious letters, written by the Younger Linnaeus, 

 Gouan, Lamarck, Acharius, Picot de Lapeyrouse, etc., etc. 

 M. Koumeguere now appeals through the press to all those 

 possessing autographs, in order to effect exchanges or pur- 

 chases. We willingly grant him the publicity afforded by 

 our journal. Persons may address themselves direct to 

 M. CasimirEoumeguere, botanist, Toulouse, France. 



— De Tuinbouw-Illusteatie. — We have just received 

 another part of the illustrated work published by Messrs. 

 Krelage of Haarlem under the above title. This part, which 

 completes the first volume, contains 66 pages, and engrav- 

 ings of the following plants , accompained by well written 

 articles : Lilium Wittei, Asclepias tuberosa, Arisaema rin- 

 geus, Cineraria hybrida plena, Hippcastrun pardinum, 

 Begonia boliviensis, Sedeni, Chelsoni, intermedia, Veitchi and 

 rosae flora, Gerardia querci flora and pedicularia, Crocosma 

 aurea, Lilium Humboldtii and L. tigrinum plenum. We 

 shall take this number up again on another occasion, in 

 reference to a well-written article on Lilies. 



— Exhibitions. - The Glamorganshire Horticultural So- 

 ciety's twelfth annual show of Plants, Flowers, Fruits, etc. 

 will be held at Cardiff on Wednesday, August 19. About 

 £ 300 Wl11 be S iy en in prizes. One of the principal classes 



