KEW HERBARIUM REPORT FOR 1880. 57 



manuring is necessary for the production of crop without damage 

 to the tree. 



9. — The hurning of fallen leaves, &c., is almost universally con- 

 demned by planters as too dangerous. In cases where this cannot 

 be done, it is better to bury the leaves and prunings than to leave 

 them tossing about. In doing this, the layers of leaves and 

 prunings (which may be mixed with weeds) should be carefully 

 covered with caustic lime and earth, and not disturbed for several 

 months. The suggestion that the leaves might be placed under 

 pigs and cattle affords a less safe alternative ; but even this plan 

 is much better than leaving them to be blown about the estates. 

 The sooner the leaves are gathered after falling, the more spores 

 are destroyed with them. 



10. — The origin of leaf-disease cannot be traced wdth certainty; 

 but the evidence is so strong in favour of its having arisen from an 

 invasion of spores out of the jungle, that this view may be con- 

 sidered highly probable. Once on the coffee, its spread would be 

 very rapid, where such large unbroken areas extend. No trace of 

 valid evidence exists for the views that the disease has been 

 'induced by artificial manuring,' or ' caused by alterations in the 

 sap of the tree ;' it is, beyond all doubt, the results of the action of 

 a fungus derived from without, the spores of which were either 

 imported into Ceylon (an improbable event) or came from the 

 native jungles." 



REPORT OF THE HERBARIUM OF THE ROYAL GARDENS, 

 KEW, FOR 1880.* 



By Sir J. D. Hooker, K.C.S.I., &c. 



[The principal additions to the Kew Herbarium during 1880 — 

 the moss-herbarium of Schimper, the herbarium of General Munro, 

 and that of Dr. Goodenough — have already been recorded in this 

 Journal (Journ. Bot., 1881, pp. 183, 96, 256).] 



The following is a list of the names of the other principal con- 

 tributors to the herbarium during 1880 : — 



Europe.— Cooke, Dr. M. C; British and other Fungi (177) 

 Desmazieres ; ' Plantes Cryptogamiques de France ' (2800, pur 

 chased). Flahault, Dr. Chas. ; Norwegian and Lapland (77) 

 Heldreich, Dr. ; Greek (114, purchased). Henriquez, Dr. J. A 

 (Coimbra) ; Portuguese plants, principally fungi (269). Husnot 

 T. ; French mosses (25). Huter, Kupert ; Spanish (467, pur 

 chased). Kiseer, F. ; European mosses (100). Larbalestier, C. 

 Lichens (200, purchased). Lindeberg, Dr. C. J. ; Scandinavian 

 Hieracia (150). Markham, Commander; Arctic, collected by Mr, 

 Grant in Franz Josef Land. Massalongo, Dr. C, Ferrara 

 Hepaticae (30, purchased). Mougeot and Nestler; Crypt. Vogeso^ 

 Khen. (the last volume) (purchased). Schimper, Dr. A. F. W. ; 

 mosses, various (1550, purchased, exclusive of the herbarium 



[* Dated January 1st, 1881, but not published until December of that year. — 

 Ed, Journ, Bot.] 



