24 The Plant World. 



Cooke. Fungi : Their Nature and Uses. (The international 



scientific series). New York, 1875 1 .00 



A Plain and Easy Account of Biitish Fungi. 



London, 1876 1 . 00 



Undeiwood. Moulds, Mildews and Mushrooms. New 



York, 1899 1 . 25 



Tuckerman. Genera Lichenum. Amherst, 1872 7.00 



— Synopsis of the North American Lichens 



(Vol. I) Boston, 1882 9.00 



Koerber. Systema Lichenum Germaniae. Breslau, 1855 2.50 



— — — — Parerga Lichenologica. Breslau, 1865 2.00 



Address The Plant World, Drawer L, Tucson, Arizona. 



