ILLUSTRATION'S IN VOLUME FIRST. 



FEOM ORIGINAL DRAWINGS BY E. HEYN, H. v. KONIGSBRUNN, E. v. RANSONNET, 

 J. SEELOS, F. TEUCHMANN, 0. WINKLER, AND OTHERS. 



Seedlings with Cotyledons and Foliage-leaves, - 9 

 Metamorphoses of Leaves as exhibited by the Poppy, 11 

 Goethe's " Urpflanze ", - - - - - 12 



Vegetable Cells, 22 



Protoplasm inclosed in Cells, - - - - 25 



Cell-chambers, showing Intercellular Spaces and 



Intercellular Substance, - - - - 27 



Swimming Protoplasm, - - - - - 29 

 Pulsating Vacuoles in the Protoplasm of the large 



Swarm-spores of Ulothrix, - - - - 31 

 Creeping Protoplasm, - - - - - 32 



Connecting Passages between adjacent Cell-cavities, 45 

 Linaria Cymbalaria dropping its Seeds into Clefts 



in the Rocks, ------ 53 



Absorptive Cells on Root of Penstemon, - - 87 

 Centrifugal and Centripetal Transmission of Water, 94 

 Irrigation of Rain-water in Plants, - - - 97 



Aerial Roots of a Tropical Orchid assuming the 



form of straps, .----■ 107 

 Transverse section through absorption-roots of 



Saprophytes, - - - - - - 115 



Bladderworts, 120 



Traps of l/tricularia neglecta, - - - - 121 

 Spinous Structures in the Pitfalls of Carnivorous 



Plants, 124 



Sarracenia purpurea, . . . - . 125 



Ascidia-bearing and Pitcher-plants, - - - 127 

 Cephalotus follicularis, - - - - - 131 



Young Nepenthes plants, - - - 132 



Nepenthes destillatoria, ----- 133 

 Glandular structures in the Toothwort, Bartsia, 



and Butterwort, ------ 137 



Tentacles on leaf of Sun-dew, - - - - 145 



Venus's Fly-trap {Dioncea muscipula), - • 148 



Capturing apparatus of the leaves of Aldro- 



vandia and Venus's Fly-trap, - - - 150 

 Aldrovandia vesiculosa, ----- 151 

 The 'F\j-cs,tcheT (Drosophyllum lusitanicum), ■ 155 

 Lonicera ciliosa in South Carolina, - - - 160 



Hyphie of Parasitic Fungi, - - - -165 



Parasites on Hydrophytes, - - - - 16P 



Seedlings of Parasitic Plants, . - . - 173 

 Cuscuio £uro/)fFa parasitic on a Hop-stem, - - 175 

 Bastard Toad-flax ( ITiesium a^pinum), - - 177 



Toothwort {Lathreea Squaviaria), with suckers 



upon the roots of a Poplar, - - - - 181 



Langsdorffia hi/por/cea, from Central America, - 187 

 Parasitic Ealanophoreae (Scybalium fungiforme 



and Balanophora Uildenhrandtii), ■ - 189 



Parasitic BalanophoreEe {Rhopalocnemis phalloides 



and IJdosis gujanensis), - - - - 191 



Parasitic Balanophorese {Lophophytum mirabile 



and Sarcophyte sanguinea), ■ - - - 195 



Cytinus Hypocistus and Cynomorium coccineum, - 197 

 RafflesiaceEe parasitic on trunks and branches, - 201 

 Parasitic Rafflesiacea upon a Cissus-root, - - 202 



Rajflesia Padma, parasitic on roots upon the sur- 

 face of the ground, . - - . . 203 

 The European Mistletoe ( Viscum album), • - 206 

 Bushes of Mistletoe upon the Black Poplar in 



winter, 207 



Loranthus Europeeus and Mistletoe ( Viscum 



album) — both parasitic on branches of trees, 



and seen in section. A piece of Fir-tree 



perforated by the sinkers of a Mistletoe, - 209 



Porous Cells of Fork-moss, Bog-moss, and an 



Orcliid root, 219 



Aerial Boots of an Orchid epiphytic upon bark 



of the branch of a tree, - - - - 221 



Aerial Roots with root-hairs, - - - - 224 



Hairs and Leaves which retain Dew and Rain, - 228 

 Cauline and Capitate Hairs, - - - . 229 



Absorption of Water by Foliage-leaves, - - 232 



Absorptive Cavities and Cups on Foliage-leaves, 233 

 Water-receptiicles in Plants, - . . - 239 



Gelatinous Lichens, ------ 244 



Fruticose and Foliaceous Lichens, - - - 245 

 Roots with Mycelial Mantle; Mycelium entering 



into the external cells, - - - - 250 



Olive Grove on the Shores of Lake Garda, - - 275 

 Transpiring Cells, ...... 278 



Spungy Tissue of Franciscea eximia and Daphne 



Laureola, ----... 279 



Corypha umbraculifera of Ceylon, - - - 289 



Stomata of Nephrodium Filix-mas and Peperomia 



arifolia, ------- 294 



Protection of Stomata from Moisture by PapUla- 



like outgrowths of the Surface, - - - 295 



