Chemisch-pharmaceut. Botanik. — Horticultur u. Agricultur. 63 



cöntre des formes intermediaires entrc plusieurs de ces especes. 

 D'aatres, trop distinctes pour etre rapprochees des precedentes, paraissent 

 avoir la valeur d'especes proprement dites. II existe dans les Pyrenees 

 im grand nombre de formes locales, le plus souvent speciales ä une seule 

 vallee; d'autres sont moins importantes, car elles sont parfois reduites ä 

 quelques buissons; ii n'y a pas lieu d'y voir pourtant des produits de 

 croisement. L'exploration batologique de notre pays est si incomplete 

 qu'il est impossible de saisir les relations qui existent entre les Rubns 

 actuellement connus et assigner ä chaque forme sa place exacte dans la 

 Classification. 



L'existence de Ron ces hybrides est maintenant indiscutable; les 

 hybrides sont souvent tres localises; leur facilite de multiplication par 

 la voie vegetative explique leur abondance, parfois extreme sur im petit 

 espace. L'hybride de Rubus est presque toujours sterile. 



Enfin, l'auteur termine son travail par une analyse des formes pures 

 ou supposees telles qui s'y trouvent decrites ; il la donne sous forme de 

 tableaux oü la-variete typographique met de la clarte en subordonnant 

 nettement les formes les unes aux autres jusqu'aux termes ultimes admis 

 par M. Sudre comme formes supposees pures. C. Flahault. 



Towett, H. A. D., and Potter, C. E., Variations in the 



Occurrence of Salicin and Salinigrin in different 



Willow and Poplar Barks. (Pamphlet No. 28. Wellcome 



:emical Research Laboratories. Reprinted from the Pharma- 



ceutical Journal. August Ib. 1902.) 



The authors summarize the results of this investigation thus: 



1. That of the thirty three samples of willow and poplar 

 examined, salinigrin was only found in one, Salix discolor. 

 Muhl., which may therefore be considered to be the source of 

 salinigrin. 



2. That the amount of salicin contained in the bark of a 

 )w or poplar depends not only on the species, but on the 



- son of the year at which it is coliected, the sex of the tree, 

 and possibly other factors. W. G. Freeman. 



ANONYMUS. Historical Notes on Economic Plants in 

 Jamaica. No. V. Tea. (Bulletin. Department of Agri- 

 culture. Jamaica. Vol. I. 1903. p. 150 — 154.) 



China tea appears to have been first introduced into Jamaica 

 in 1771 under the name of Bohea tea or Black tea (Tliea ßoheaj, 

 green tea was then, and for a long time ofterwards, supposed to be the 

 produce of a distinct species, Theo viridis, and a plant was intro- 

 duced under this name in 1775. 



The Royal Botanic Gardens, Kew sent plants of Assam tea in 

 . 1849-50, and seeds of Hybrid tea in 1SS5. 



Tea plants thrive in the Island and since 1892 small quantities of 

 tea have been made, and on one estate there are now some 60 acres 

 under tea, and modern machinery has been installed. The opinion of 

 an expert Indian planter is quoted to the effect that it should pay wel! 

 to grow Assam tea on the Blue Mountains between 3000 and 

 6000 feet. W. G. Freeman. 



Anonymus. BayOil and Bay Rum. (West Indian Bulletin. 



Vol. IV. 1903. p. 119 to 128 and 189 to 194.) 



The Bay Tree (Pimenta acris Wight.) known also as Bay berry, 

 1 clove, White cinnamon, Wild cinnamon, and Bois d'Inde, occurs 



