INDEX. 



PLATES. 



Lycopodium (Club-moss) .... XXV. 



Macrosporangium of Pilularia ... XXIV. 



Selaginella - - - XXV. 



Macrospore of Pilularia .... XXIV. 



Selaginella - XXV. 



Marchantia (Liverwort) .... XX. 



Micrococcus II. 



Microsporangium of Pilularia - - - XXIV. 



Selaginella - - - XXV. 



Microspore of Pilularia .... XXIV. 



Selaginella '- - - XXV. 



Mucor (Brown Mould) VIII. 



Myxomycetes (Slime Fungi) — Amoeboid and 



Plasmodium stages V. 



Nostoc ' I- 



Oedogonium XL 



Oogonium (with Oosphere) of Fucus - - XIII. 



Oedogonium - XL 



Vaucheria - XL 



Volvox -' - IX. 



Oospore of Fucus XIII. 



Oedogonium - - - • - XL 



Vaucheria XL 



Volvox globator - - - - IX. 



Volvox minor X. 



Oscillatoria I. 



Palmella I. 



Pandorina IV. 



Paraphyses of Cetraria . . . XV. 



Fern XXII. 



Fucus , XIII. 



Funaria XXI. 



Peziza XIV. 



Penicillium (Green Mould) - XIV. 



Peristome of Polytrichum - XXI. 



Funaria XXI. 



Peziza - XIV. 



Phytophthora infestans (Potato Disease 



Fungus) XII. 



Pilularia (Pillwort) XXIV. 



Pinna of Fern XXII. 



Pinnule of Fern - - - - - - XXII. 



Pollen-grain of Angiosperm - - - - XXVI. 



Gymnosperm ... XXVI. 



Polysiphonia (Red Sea-weed) - - - XVII. 8 ; XVIII. i 



Polytrichum (Hair Moss) .... XXI. 



Pro-embrj o of Chara XIX. 



Prothallus of Equisctum .... XXIV. 



Fern XXIII 



Lycopodium .... XXV. 



Selaginella .... XXV. 



T otococcus IV. 



Piotoncma of Moss XXI. 



Respiratory pore of Lunularia ... XX. 



Rivularia I. 



Rust of Wheat XVI. 



Saccharomyces (Yeast) - - - - I. 



Sclerolium of Mushroom .... XVIL 



Scytonema I. 



i 



M 



7 



16 



7, 10 



6 



1,2,3 



14 



7 



15 



14, 15 

 6 



7, 17 

 2, 4, 5, 6 

 11, 12, 13 



4,5 

 3 

 7 



14, 15 

 6 



4 



2,3,4,5,6 



2 



7 

 3 

 3 

 5 

 2,4 



3 



2 



6 



7 

 8 

 1 



1 

 13 



2,3 



2, 3, 4, 5 

 2 



1 



1 



9 

 9, 12 



3 



5 



8, 10 



1,2 



12 



2,3 



5 



1-8 



9 



7 

 3,4 



PLATES. 



Selaginella - - - ... . XXV. 



Spermatia of Cetraria XV. 



Rust of Wheat - - - XVI. 



Spike of Equisetum XXIV. 



Lycopodium - - - ' - - XXV. 



Spirillum - - - - - - II. 



Spirochete 'II. 



Spirogyra VI. 



Sporangium of Ar'cyria - - - - V. 



Equisetum .... XXIV. 



Fern XXII. 



Lycopodium - - - . XXV. 



Mucor VIII. 



Spores of Bacillus III. 



Chara XIX. 



Equisetum XXIV. 



Fern ------ XXII. 7; 



Lycopodium XXV. 



Marchantia XX. 



Moss XXI. 



Mucor — Chlamydo-spores - - VIII. 



Mushroom XVIL 



Myxomycetes V. 



Polysiphonia — Carpo-sp'ores - - XVIII. 



Rust of Wheat — Aecidio-spores - XVI. 



Teleuto-spores - XVI. 



Uredo-spores - XVI. 



Spirillum II. 



Sporidium of Rust of Wheat - - - XVI. 



Sporocarp or Spore-fruit of Marchantia - XX. 



Moss - - XXI. 



Penicillium - XIV. 



Pilularia - - XXIV. 



Stem of Aspidium - - - . - - XXII. 



Fucus XIII. 



Laminaria XIII. 



Thallus of Cetraria — Vertical Section - - XV. 



Lunularia do. - XX. 



Marchantia do. - - XX. 



Trichogyne of Peziza XIV. 



Polysiphonia - XVIII. 



Ulothrix IV. 



Ulva - V. 



Vaucheria XL 



Volvox globator ' - IX. 



Volvox minor — Young X. 



Zooglcea of Bacillus - - - - - III. 



Micrococcus - - - - II. 



Spirillum II. 



Zoospore of Enteromorpha - - - - V. 



Myxomycetes - - - - V. 



Pandorina IV. 



Ulothrix IV. 



Zygospore of Cosmarium - - - - VI. 



Frustulia VI. 



Mucor VIII. 



Pandorina ... - IV. 



Spirogyra - VI. 



Ulothrix IV. 



6 

 6 

 2 



1, 2,4 

 1 



7,8 

 6 



1-4 

 15 

 6,7 

 5,6 

 3 



2,3 

 2-7 

 7,8 

 8 

 XXIII. 1,2 



4 



11 



10, 11 



6 



5,6 



\\c 



2 



2,3 

 6,8 



4, 5, 6, 7 

 Se-z 



8,9 

 10 



6,7,9 



9 



13, 14 



1 



8,9 



10, 11 



2, 3 



4 



7 



5 



3,4 • 



4,9 



6,7 



1 



1,2 



7 



5 



3 



8a 



11,12,13 



14c 



Sa-e 



7,9 



11, 12, 13 



15 



8,9 



2f,g 



7 



8 





