ILLUSTRATIONS. 



TKOM ORIGINAL DRAWINGS BY E. HEYN, E. v. RANSONNET, J. SEELOS, F. TEUCHMANN, 



0. WINKLER, AND OTHERS. 



COLOURED PLATES. 



Page 



IX. Mosses and Liverworts. — Drawn by Ernst Heyn, to face 66 



X. Alpine Rhododendrons and Mountain Pines (Tyrol). — Drawn by Ernst Heyn, • „ 106 



XI. Victoria Rkgia in the River Amazon. — Dra\vn by Ernst Heyn, - - ■ - „ 184 



XII. Alpine Flowers in the Tyrol. — Drawn by Ernst Heyn, „ 198 



XIII. West Indian Orchids {Stanhopea Devoniensis and Oncidium Papilio). — Drawn by 



Ernst Heyn, ., 224 



XIV. Fungi at Home.— Dra\vn by Ernst Heyn, - - - ,. 492 



XV. Fkondose and Fbuticose Lichens. — Drawn by Ernst Heyn, „ 694 



XVI. Eucalyptus Grove and Grass-trees in Australia. — Drawn by Ernst Heyn, - • „ 730 



ILLUSTRATIONS IN THE TEXT. 



Page 



Ferns and their spore-cases, &c., - - - 11 



Horse-tails (Eqniseta), - - - • - 14 



Mosses and their fructification, - - - 15 

 Swarm-spores of Saprolegniaceae and Chytri- 



diacea), ..-.--- 17 



Moulds and their fructification, - - - - 18 



Discomycetes (Morel and other Fungi), ■ - 19 



Basidiomycetes (various Fungi), - - - 21 



Thallidia of Muscinese or Mosses, - - - 23 

 Formation of Thallidia in the cells of Hydro- 



dictyon and in those of Pediastrum, ■ ■ 24 

 Helwingia ruscijiora, with flowers seated upon the 



foliage-leaves, ..---- 38 

 Formation of Buds on the apices of the Fronds of 



Ferns: Asplenium Edgeworthii, ■ ■ - 39 



Formation of Buds on Fronds and Foliage-leaves, 41 

 Fertilization and fruit-formation in Ulothrix 



zonata (partly after Dodel-Port), - - 50 

 Fucus vcsiculosus (Bladder-wrack), various sec- 

 tions, 51 



Fucus vesiculosus, do. do., - 52 

 Fertilization and fruit-formation in Mucorini, 



Siphonacece, and Floridc(v, - - - - 53 

 Fertilization, fruit-formation, and spore- formation 



in the Pcronospores, - - - - - 57 



Fruit-formation in Stoneworts (Characeie), - 63 



Page 

 Structure of Phanerogamic Ovaries : various ex- 

 amples in section and otherwise, - - - 73 

 Structure of Phanerogamic Ovaries : various ex- 

 amples in section and otherwise, - - - 74 

 Structure of Phanerogamic Ovaries: various ex- 

 amples in section and otherwise, - - - 77 

 Structure of Phanerogamic Ovaries : various ex- 

 amples in section and otherwise, - - - 78 

 Antholysis .and Structure of the Ovary, - - 79 

 Ovules and Foliaceous Carpels, - - - - 83 



Stamens of double and monstrous flowers, - - 86 

 Stamens, numerous examples, - - - - 87 



Curved anthers in the flower of Phyllanthus Cy- 



clanlhera (after Baillon), - - - - 90 



Stamens, numerous examples, - • - - 91 



Pollen-grains, fourteen varieties, - ■ - 98 



Pollen-grains, nine varieties, - - • - 99 

 PoUen-grains and pollen-tetrads united by threads 



of viscin, ------- 101 



Protection of Pollen from Wet in Sea-huckthorn, 



&c., 109 



Protection of Pollen from Wet in Globe-flower, 



Digitalis, &c., 110 



Protection of Pollen from Rain,- - - - 112 



Protection of Pollen in Crocus mtdtifidus, ■ -113 

 Protection of Pollen in Carlina acaulis, ■ ■ 117 



