DESCEIPTI-ON OF COLOUKED PLATES. 

 PLATE l.—Page 256. 



PROTOPHYTA. 



Fig. 1. Pezizabicolor— 2. Truffle — 3. Spheeriaherbarum : a. piece of deadplanjt, with 

 S. herbarum natural size ; b. section of same, slightly magnified ; d. Ascus with 

 spores, and paraphj'ses more magnified — 4. Peziza pj'gmsea — 5. Proliferous 

 form of same — d. P. corpulasis; Ascus with spores and paraphyses, 

 merely given as a further illustration of structure in Peziza — 7. Yeast, 

 good — 8. Yeast, exhausted— 9. Phyllactinia guttata— 10. Yeast with favus 

 spores and mycelium — 11. Favus ferment, with torulse and bacteria-like 

 bodies— 12. Puccinia-like-form in ditto, growing from saccharine solution — 

 Vi. Aerozoa — 14. Sporules, <fec. from eczema produced by yeast — 15. Vol vox 

 globator — 16. Amoeboid condition of portion of volvox — 17. Pucciuia buxi — 

 18. Ditto, more enlarged— {17 to 20 illustrate Coniomycctes) — 19. Jicidium 

 gx'ossularise, transverse section of leaf of currant affected by : a. spernio- 

 gones on upper surface ; b. perithecia with spores — 20. Pliragmidium bul- 

 bosum, development of — 21. Parmelia parietina, trans, section thiough a 

 spermogone, showmg green gonidia and spermatia escaping — 22. ^Ecidium 

 berberidis, from leaf of berberry— 23. Vaucheria sessilis — 24. Stephano- 

 sphaera pluvialis : a. Full-grown example, germ-cells spindle-shaped, with 

 protoplasmic elongations, b. Resting-cell. c. diAasion into four. d. Free 

 swimming ciliated young specimen, e. Amoeboid condition — 25. a, b, c, d, e, 

 f and g, Development of Lichen gonidia — 26. Parmelia stellaris (Lichen), 

 vertical section through apothecium, showing asci, spores, and paraphyses, 

 with gonidia and filamentous medulla, a. Spermatophore with spermatia 

 — 27. Moss gonidia assuming amoeboid form. 



The intention of this plate has been, first to show illustrations of 

 various forms of Protophytes, as the lowest types of vegetable 

 structure ; (from 7 to 14), supposed modes of development or rudi- 

 mentary conditions ; and Confervoideae illustrated by Vaucheria in 

 the Siphonaceffi, f. 23, Stephanosphsera 24, and Volvox 15, in the 

 Volvocinese ; and their remarkable amoeboid conditions illustrated 

 by 16, 24 e, and 27. The protean forms assumed in development 

 by 7 to 14 : 24: a to e ; 25 a to g, and 27. 



PLATE 11.— Faffe 273. 



PROTOPHYTA. ALG^. 



Fi^. 27. Ceramium acanthonotum — 28. Triploceras gracile — 29. Cosmarium 

 radiatum— 30. Micrasterias denticulata — 31. Docidium pristidse — 32. Calli- 

 thamnion plumula — 33. Diatomacese, living : a. Licmophora splendida ; 

 b. Achnanthes longij)es ; c. Grammatophora marina. These figures are in- 

 tended to show the general character of the endochrome and growth of 

 frustule — 34. Callithamnion refractura — 35. Jungermannia albicans, b. re- 

 presents elater and sx)ores— 36. Leaf with antheridia, or male elements, which 

 are represented more magnified at a to the left of the figure — 37. Ceramium- 

 echinotum — 38. Pleurosigma angulatum, side view— 39. Delesseria hypo- 

 glossum— 40. Pleurosigma angulatum, front view, endochrome not rei)re- 

 sented — 41. Ceramium flabelligerum. 



The intention of this plate is chiefly to show various forms of 

 Algae, The figures of Desmids, 28 to 33, illustrate the appearance 



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