286 INDEX. 



Jam, greenish, and grey moulds on, i. 285 



Jungermanniacese, or scale mosses, structure, fertilization, and deve- 

 lopment of, i. 320-322 

 Jupiter, the planet, spectrum of, i. 157, 161 

 constitution of, i. 158 



K 



Kelp, i. 258 



former and present uses of, i. 128 

 Kerona silurus, structure and food of, ii. 69 



Labellum of orchides, i. 401 

 Lactarii, lactiferous vessels of, i. 263 

 Lady Fern, herbaceous caudex of, i. 340 



structure and fructification of, i. 352, 353 

 Lagenidse, characters and habitat of the family, ii. 39 

 Lagoons formed by corals, ii. 140-143 

 Laminaria bulbosa, structure and fruit of, i. 248 

 Laminaria debilis, structure of, i. 248 

 Laminaria digitata, or oar-weed, structure of, i. 249 



richness of the iodine obtained from, at Guernsey, i. 258 

 Laminaria radiata, structure, habitat, and fructification of, i. 250 

 Laminaria saccharina, or devil's apron, structure and mode of reproduc- 

 tion of, i. 249 



Laminarise, submarine forests of, i. 248 



Lanosa nivalis, the probable cause of the mildew in rye, i. 297 

 Lastrea, structure of the genus, i. 346 

 Lastrea semula, structure of, i. 346 

 Lastrea filis-mas, structure of, i. 340 

 Lastrea rigida, scent of, i. 347 



Lastrea Thelypteris or marsh fern, structure of, i. 346 

 Latex, structure of the, in plants, i. 417 



