ILLUSTRATIONS. 



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



0. WINKLER, AND OTHERS. 



COLOURED PLATES. 



IX. Mosses and Liverworts. — Drawn by Ernst Heyn, 



X. Alpine Rhododendrons and Mountain Pines (Tirol). — Drawn by Ernst Heyn, 

 XI. Victoria Regia in the River Amazon. — Drawn by Ernst Heyn, .... 

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



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



Ernst Heyn, -.-.---------- 



XIV. Fdngi at Home.— Drawn by Ernst Heyn, 



XV. Frondose and Frütioose Lichens. — Drawn by Ernst Heyn, 



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



to face 



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ILLUSTRATIONS IN THE TEXT. 



Ferns and their spore-cases. &c., 



Horse-tails (Equiseta), . - - - . 



Mosses and their fructification, - 



Swarm-spores of Saprolegniacese and Chytri- 



diace», -..---- 

 Moulds and their fructification, - - - - 

 Discomycetes (Morel and other Fungi), 

 Basidiomycetes (various Fungi), 

 Thallidia of Muscineae or Mosses, 

 Formation of Thallidia in the cells of Hydro- 



dictyon and in those of Pedmstrum., 

 Hdwiiigia ruscißora, with flowers seated upon the 



foliage-leaves, --.-.- 

 Formation of Buds on the apices of the Fronds of 



Ferns: Asplenium Edgeworihii^ - 

 Formation of Buds on Fronds and Foliage-leaves, 

 Fertilization and fruit-formation in Ulothrix 



zonata (partly after Dodel-Port), 

 Fucus vesiculosua (Bladder-wrack), various sec- 

 tions, .-..--- 

 Fucus vesiculosus, do. do.. 

 Fertilization and fruit-formation in Mucorini, 



Siphonacea, and Ploridcce, - - . - 



Fertilization, fruit-formation, and spore-formation 



in the Peronosporeae, - - - - - 

 Fruit-formation in Stoneworts (Characeae), 



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24 



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50 



51 



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53 



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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 PhyUanthus Cy- 



clantkera (after Baillon), - - - - 90 

 Stamens, numerous examples, - - - - 91 

 Pollen-grains, fourteen varieties, - - - 98 



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

 Pollen-grains and pollen-tetrads united by threads 



of viscin, .-.---- 101 

 Protection of Pollen from Wet in Sea-buckthorn, 



&c., 109 



Protection of Pollen from Wet in Globe-flower, 



Digitalis, &c., .-.--. 110 

 Protection of Pollen from Kain, - - - - 112 

 Protection of Pollen in Crocus multifidus, - - 113 

 Protection of Pollen in Carlina acaulis, ■ ■ 117 



