Æcidium Parnassiæ, Grav. Parnassia Cluster-cups; hypophyllous; spots pallid; peridia in subrotund patches, irregularly disposed, tawny-yellow, between urceolate and concave; the margin thick and nearly entire; spores pallid. Duby. Bot. Gall. ii. p. 904.—On leaves of Parnassia palustris, near Glasgow. (Dr. Greville.) The original specimen is in the Edinburgh Herbarium.
Æcidium Statices, Desm. Sea-Lavender Cluster-cups; hypophyllous; spots subrotund, or confluent and irregular, purple; peridia in subrotund circinating clusters, sometimes irregularly disposed on the nerves and petioles; urceolate; margin lacerated, white; spores orange. Desm. Exs. No. 132. Cooke, Exs. No. 444.—On leaves and petioles of Statices. June, July. Fleetwood, 1859 (Rev. A. Bloxam). Walney Island, Lancashire, 1871 (C. Bailey). Near Basingstoke, 1871 (R. S. Hill). Near Chichester, 1872 (F. V. Paxton).
Chætomium funicolum, Cooke. Twine Bristle-mould; perithecia scattered, sub-ovate, black; hairs of the vertex very long, dichotomous or simple, erect, slender, acute, black; sporidia lemon-shaped, dingy brown.—On twine suspended in a vessel containing water at the British Museum. (W. Carruthers, F.R.S.) March, 1872. This species is most closely allied to C. elatum, but much smaller and neater. It is wholly black, and without the fibrous base of C. elatum. The hairs are more delicate, not having half the diameter, and the sporidia are scarcely more than half as long or broad. A species of Polyactis afterwards made its appearance on the same mycelium on some portion of the twine left behind with a few immature perithecia.
EXPLANATION OF PLATES.
| Plate | fig. | |
| [I.] | 1. | Goatsbeard with its cluster-cups (Æcidium Tragopogonis). |
| 〃 | 2. | Fragment of same, slightly magnified. |
| 〃 | 3. | Section of cluster-cup, further magnified. |
| 〃 | 4. | Leaf of wood-anemone with its cluster-cups (Æcidium leucospermum). |
| 〃 | 5. | Portion of same, slightly magnified. |
| 〃 | 6. | Anemone cluster-cups, further magnified. |
| 〃 | 7. | Leaf of Berberry with cluster-cups (Æcidium Berberidis). |
| 〃 | 8. | Cluster of cups from the Berberry, as seen with a lens. |
| 〃 | 9. | Cluster-cups of Berberry, magnified. |
| 〃 | 10. | Nettle-stem distorted by growth of cluster-cups (Æcidium Urticæ). |
| 〃 | 11. | Nettle cluster-cups, magnified. |
| [II.] | 12. | Leaf of Pilewort with groups of cluster-cups (Æcidium Ranunculacearum). |
| 〃 | 13. | Group of cluster-cups from Pilewort, as seen with a lens. |
| 〃 | 14. | Section of Pilewort cluster-cups, magnified. |
| 〃 | 15. | Bedstraw cluster-cups (Æcidium Galii) on the Great Hedge Bedstraw. |
| 〃 | 16. | Tip of leaflet with cluster of cups, viewed through a lens. |
| 〃 | 17. | Bedstraw cluster-cup from same, magnified. |
| 〃 | 18. | Leaflets of Mountain-ash with horn-shaped cluster-cups (Rœstelia cornuta). |
| 〃 | 19. | Group of Mountain-ash cluster-cups, magnified. |
| 〃 | 20. | Pear-leaf with its cluster-cups (Rœstelia cancellata). |
| 〃 | 21. | Cluster-cup from the same, magnified. |
| 〃 | 22. | Leaves and fruit of Hawthorn with lacerated cluster-cups (Rœstelia lacerata). |
| 〃 | 23. | Elongated cells forming the walls of the cluster-cups, × 250. |
| 〃 | 24. | Single cell, more highly magnified, with its parallel striæ. |
| 〃 | 25. | Cluster-cups from fruit of Hawthorn, magnified. |
| 〃 | 26. | Section of same, further magnified. |
| 〃 | 27. | Fir-leaves bearing cluster-cups (Peridermium Pini). |
| 〃 | 28. | Isolated cup of same, magnified. |
| [III.] | 29. | Many-jointed fruit of Burnet chain-brand (Xenodochus carbonarius), magnified. |
| 〃 | 30. | Leaflets of Burnet with rust on the lower, and brand (Aregma acuminatum) on the upper leaflets. |
| 〃 | 31. | Spores of Burnet rust (Lecythea Poterii) × 230. |
| 〃 | 32. | Fruit of Burnet brand (Aregma acuminatum). |
| 〃 | 33. | Leaf of Barren Strawberry with rust and brand intermixed. |
| 〃 | 34. | Spores of Barren Strawberry rust × 230. |
| 〃 | 35. | Fruit of Strawberry brand (Aregma obtusatum) × 300. |
| 〃 | 36. | Leaflet of Rose with its rust and brand intermixed. |
| 〃 | 37. | Spores of Rose rust (Lecythea Rosæ) × 230. |
| 〃 | 38. | Fruit of Rose brand (Aregma mucronatum) × 300. |
| 〃 | 39. | Leaflet of Bramble, with its rust and brand intermixed. |
| 〃 | 40. | Spores of Bramble rust (Lecythea Ruborum) × 230. |
| 〃 | 41. | Fruit of Bramble brand (Aregma bulbosum) × 300. |
| 〃 | 42. | Leaflet of Raspberry with its brand. |
| 〃 | 43. | Fruit of Raspberry brand (Aregma gracile) × 230. |
| 〃 | 44. | Cluster of fruits of Rose brand (Aregma mucronatum) × 230. |
| 〃 | 45. | Fruit of Bramble brand (Aregma bulbosum) in active germination, with sporidia at the tips of the threads × 300. |
| 〃 | 46. | Fruit of Bramble brand (Aregma bulbosum) ruptured, with inner cell escaping × 250 (F. Currey). |
| 〃 | 47. | Portion of leaflet of Meadow-sweet with its brand. |
| 〃 | 48. | Spores of Meadow-sweet brand (Triphragmium ulmariæ) × 300. |
| 〃 | 49. | Spore of Meadow-sweet brand (Triphragmium ulmariæ) in germination, with sporidia borne on the germ-tubes × 300 (Tulasne). |
| 〃 | 50. | Sprig of Thesium humifusum bearing Bastard-toadflax cluster-cups (Æcidium Thesii). |
| 〃 | 51. | Portion of leaf of same, with cluster-cups, enlarged. |
| 〃 | 52. | Leaflet of Trientalis Europæa with its smut (Tuburcinia Trientalis). |
| 〃 | 53. | Spores of the same × 320. |
| 〃 | 54. | Spores of Potato smut (Tuburcinia scabies) × 320. (Berkeley.) |
| 〃 | 55. | Leaflet of Alexanders (Smyrnium olusatrum) with its brand. |
| 〃 | 56. | Spores of Alexanders brand (Puccinia Smyrnii) × 320. |
| [IV.] | 57. | Wheat-straw attacked by mildew (Puccinia graminis). |
| 〃 | 58. | Cluster of spores of corn-mildew, magnified (Bauer). |
| 〃 | 59. | Single spore of corn-mildew (Puccinia graminis) × 300. |
| 〃 | 60. | Portion of blade of grass with coronated mildew (Puccinia coronata). |
| 〃 | 61. | Portion of same enlarged, showing the pustules, or sori. |
| 〃 | 62. | Spore of coronated mildew (Puccinia coronata) × highly. |
| 〃 | 63. | Portion of leaf of Spear-thistle with its brand (Puccinia syngenesiarum). |
| 〃 | 64. | Spores of Thistle brand (Puccinia syngenesiarum) × 320. |
| 〃 | 65. | Leaf of Wood-anemone with brand (Puccinia anemones). |
| 〃 | 66. | Spore of Anemone brand (Puccinia anemones) × 320. |
| 〃 | 67. | Leaf of Centaurea nigra with brand. |
| 〃 | 68. | Spores of Composite-brand (Puccinia compositarum) × 320. |
| 〃 | 69. | Leaf of Mint with Mint brand (Puccinia menthæ). |
| 〃 | 70. | Spore of Mint brand (Puccinia menthæ) × 350. |
| 〃 | 71. | Portion of leaf of Earth-nut with brand (Puccinia umbelliferarum). |
| 〃 | 72. | Spore of Earth-nut brand (Puccinia umbelliferarum) × 320. |
| 〃 | 73. | Leaf of Ground-ivy with its brand (Puccinia Glechomatis). |
| 〃 | 74. | Spore of Ground-ivy brand (Puccinia Glechomatis) × 320. |
| 〃 | 75. | Pustule of brand surrounded by the ruptured epidermis, magnified. |
| 〃 | 76. | Portion of leaf and stem of Goatsbeard with brand. |
| 〃 | 77. | Spores of the same × 320. |
| 〃 | 78. | Portion of leaf of Willow-herb with its brand (Puccinia pulverulenta). |
| 〃 | 79. | Spores of Willow-herb brand (Puccinia pulverulenta) × 320. |
| 〃 | 80. | Leaf of Pennywort with brand (Puccinia umbilici). |
| 〃 | 81. | Spores of Pennywort-brand (Puccinia umbilici) × 320. |
| 〃 | 82. | Portion of leaf of Dandelion with its brand. |
| 〃 | 83. | Spores of Variable-brand (Puccinia variabilis) × 320. |
| [V.] | 84. | Grain of Wheat infected with Fœtid smut (Tilletia caries). |
| 〃 | 85. | Longitudinal section of the same. |
| 〃 | 86. | Spores of Fœtid smut (Tilletia caries) mixed with delicate branching threads × 320. |
| 〃 | 87. | Spores of Fœtid smut in germination × highly. |
| 〃 | 88. | Sporidia of the first order borne on the germinating tubes of the fœtid smut (Tilletia caries) × highly. |
| 〃 | 89. | Sporidia of the first order, showing their transverse connection, × highly. |
| 〃 | 90. | Sporidia of the first order, producing sporidia of the second order, × highly. |
| 〃 | 91. | Sporidium of the second order in active germination. |
| 〃 | 92. | Deformed flower-head of Goatsbeard infested with smut (Ustilago receptaculorum). |
| 〃 | 93. | Floret removed, sprinkled with spores of the smut, enlarged. |
| 〃 | 94. | Spores of Goatsbeard smut (Ustilago receptaculorum) × 460. |
| 〃 | 95. | The same in active germination × 460 (Tulasne). |
| 〃 | 96. | Beaksedge (Rhyncospora alba) with its smut (Ustilago Montagnei). |
| 〃 | 97. | Spores of Ustilago Montagnei × 460. |
| 〃 | 98. | Ear of Barley infected with smut (Ustilago segetum). |
| 〃 | 99. | Spores of Corn-smut (Ustilago segetum) × 460. |
| 〃 | 100. | Grass with its smut (Ustilago hypodytes). |
| 〃 | 101. | Spores of Grass-smut (Ustilago hypodytes). |
| 〃 | 102. | Flowers of Bladder-campion with anther smut (Ustilago antherarum). |
| 〃 | 103. | Anther distorted by smut (Ustilago antherarum). |
| 〃 | 104. | Spores of Anther smut (Ustilago antherarum) × 460. |
| 〃 | 105. | Portion of leaf of water grass with Elongated smut (Ustilago longissima). |
| 〃 | 106. | Pustule of same, enlarged. |
| 〃 | 107. | Spores of Elongated smut (Ustilago longissima) × very highly. |
| 〃 | 108. | Spores of Maize smut (Ustilago maydis) × 460. |
| [VI.] | 109. | Sedge (Carex recurva) with Sedge smut (Ustilago urceolorum). |
| 〃 | 110. | Single fruit covered with the smut. |
| 〃 | 111. | Spores of Sedge smut (Ustilago urceolorum) × 460. |
| 〃 | 112. | Flower of Polygonum persicaria distorted by Utricle smut (Ustilago utriculosa). |
| 〃 | 113. | Section of the same (Tulasne). |
| 〃 | 114. | Inflorescence of Polygonum hydropiper with Utricle smut (Ustilago utriculosa). |
| 〃 | 115. | Section of infected flower of Polygonum hydropiper. |
| 〃 | 116. | Spores of Utricle smut (Ustilago utriculosa) × 460. |
| 〃 | 117. | Leaf of Cocksfoot, grass with smut (Ustilago Salveii). |
| 〃 | 118. | Portion of leaf, showing pustules, × slightly. |
| 〃 | 119. | Spores of Cocksfoot smut (Ustilago Salveii) × 320. |
| 〃 | 120. | Grass stem with Banded smut (Ustilago grammica). |
| 〃 | 121. | Portion of same, showing arrangement of the pustules, × slightly. |
| 〃 | 122. | Spores of banded smut (Ustilago grammica) × 320. |
| 〃 | 123. | Inflorescence of Scabious with Floret smut (Ustilago flosculorum). |
| 〃 | 124. | Floret occupied by the smut. |
| 〃 | 125. | Spores of Floret smut (Ustilago flosculorum) × 320. |
| 〃 | 126. | Sedge (Carex riparia) attacked by Olive smut (Ustilago olivacea). |
| 〃 | 127. | Spores of Olive smut (Ustilago olivacea) × 460. |
| 〃 | 128. | Reed stem with smut (Ustilago typhoides). |
| 〃 | 129. | Spores of Reed smut (Ustilago typhoides) × 320. |
| 〃 | 130. | Leaf of Periwinkle with its rust (Trichobasis vincæ). |
| 〃 | 131. | Spores of Periwinkle rust (Trichobasis vincæ) × 320. |
| 〃 | 132. | Spores of Periwinkle brand (Puccinia vincæ) × 320. |
| [VII.] | 133. | Leaf of Mercury with its rust (Uredo confluens). |
| 〃 | 134. | Spores of Mercury rust (Uredo confluens) × 320. |
| 〃 | 135. | Leaf of Enchanter’s Nightshade with its rust. |
| 〃 | 136. | Spores of Nightshade rust (Uredo Circææ) × 320. |
| 〃 | 137. | Leaf of Sorrel with Twin-faced rust (Uredo bifrons). |
| 〃 | 138. | Pustule of Twin-faced rust seated on a coloured spot × slightly. |
| 〃 | 139. | Spores of the same rust × 320. |
| 〃 | 140. | Leaf of Wheat with Corn rust (Trichobasis rubigo-vera). |
| 〃 | 141. | Pustules of the same rust × slightly. |
| 〃 | 142. | Spores of Round corn rust × 320. |
| 〃 | 143. | Tuft of spores of Elongated corn rust (Trichobasis linearis) magnified. |
| 〃 | 144. | Spores of Elongated corn rust (Trichobasis linearis) × 320. |
| 〃 | 145. | Leaf of Groundsel with its rust (Trichobasis Senecionis). |
| 〃 | 146. | Spores of Groundsel rust (Trichobasis Senecionis) × 320. |
| 〃 | 147. | Wild Rose with Golden rust (Uromyces Ulmariæ). |
| 〃 | 148. | Spores of Golden rust × 320. |
| 〃 | 149. | Leaf of Vetch with Long-stemmed rust (Uromyces appendiculata). |
| 〃 | 150. | Spores of the same × 460. |
| 〃 | 151. | Leaf of Common thistle with Sweet-smelling rust (Trichobasis suaveolens). |
| 〃 | 152. | Spores of Sweet rust (Trichobasis suaveolens) × 320. |
| 〃 | 153. | Spermogone of Sweet rust, from common thistle, × highly (De Bary). |
| 〃 | 154. | Clover leaf with Short-stemmed rust (Uromyces apiculosa). |
| 〃 | 155. | Spores of Short-stemmed rust × 320. |
| 〃 | 156. | Leaf of Pilewort with its rust (Uromyces Ficariæ). |
| 〃 | 157. | Spores of Pilewort rust (Uromyces Ficariæ) × 320. |
| 〃 | 158. | Portion of leaf of Luzula with Oblong rust (Trichobasis oblongata). |
| 〃 | 159. | Spores of Oblong rust (Trichobasis oblongata) × 320. |
| [VIII.] | 160. | Leaf of Sallow with its rust (Lecythea capræarum). |
| 〃 | 161. | Spores of Sallow rust (Lecythea capræarum) × 320. |
| 〃 | 162. | Bramble leaf with Ringed rust (Lecythea gyrosa). |
| 〃 | 163. | Pustule of Ringed rust (Lecythea gyrosa) × slightly. |
| 〃 | 164. | Spores of Ringed rust (Lecythea gyrosa) × 320. |
| 〃 | 165. | Purging Flax with its rust (Lecythea Lini). |
| 〃 | 166. | Pustule of the same × slightly. |
| 〃 | 167. | Spores of Flax rust (Lecythea Lini) × 320. |
| 〃 | 168. | Leaf of Flukewort with its rust (Trichobasis hydrocotyles). |
| 〃 | 169. | Spores of Trichobasis hydrocotyles × 320. |
| 〃 | 170. | Portion of leaf of Sedge with its rust (Trichobasis caricina). |
| 〃 | 171. | Spores of Sedge rust (Trichobasis caricina) × 320. |
| 〃 | 172. | Whorl of leaves of Hedge Bedstraw with Bedstraw brand (Puccinia Galii). |
| 〃 | 173. | Spores of Bedstraw brand (Puccinia Galii) × 320. |
| 〃 | 174. | Leaf of Tutsan with St. John’s-wort rust (Uredo hypericorum). |
| 〃 | 175. | Spores of St John’s-wort rust (Uredo hypericorum) × 320. |
| 〃 | 176. | Leaves of Cow-wheat with its rust (Coleosporium rhinanthacearum). |
| 〃 | 177. | Spores of Cow-wheat rust (Coleosporium rhinanthacearum) × 320. |
| 〃 | 178. | Portion of leaf of Sow-thistle with its rust (Coleosporium sonchi-arvensis). |
| 〃 | 179. | Spores of Sow-thistle rust × highly (De Bary). |
| 〃 | 180. | Portion of Coltsfoot leaf with its rust (Coleosporium Tussilaginis). |
| 〃 | 181. | Spores of Coltsfoot rust × highly. |
| 〃 | 182. | Group of spores of Coltsfoot rust in situ × highly (Tulasne). |
| [IX.] | 183. | Leaf of Buttercup with Buttercup smut (Polycystis pompholygodes). |
| 〃 | 184. | Fruit of Buttercup smut (Polycystis pompholygodes) × 460. |
| 〃 | 185. | Violet leaf distorted by Violet smut (Polycystis Violæ). |
| 〃 | 186. | Fruit of Violet smut (Polycystis Violæ) × 460. |
| 〃 | 187. | Portion of Rye-leaf with Rye smut (Polycystis parallela). |
| 〃 | 188. | Fruit of Rye smut (Polycystis parallela) ×460. |
| 〃 | 189. | Dead Birch leaf with Birch wedge-rust (Melampsora betulina). |
| 〃 | 190. | Winter spores of (Melampsora betulina) × 460. |
| 〃 | 191. | Portion of Sallow leaf with Willow wedge-rust (Melampsora salicina). |
| 〃 | 192. | Winter spores of Melampsora salicina × 460. |
| 〃 | 193. | Leaves of Spurge with Spurge wedge-rust (Melampsora Euphorbiæ). |
| 〃 | 194. | Winter spores of Melampsora Euphorbiæ × highly. |
| 〃 | 195. | Portion of Poplar-leaf with Poplar wedge-rust (Melampsora populina). |
| 〃 | 196. | Winter spores of Melampsora populina × 460. |
| 〃 | 197. | Winter spores of Melampsora betulina in active germination—a sporidia × 466 (Tulasne). |
| [X.] | 198. | Fruit of Shepherd’s-Purse with White rust (Cystopus candidus). |
| 〃 | 199. | Portion of Cabbage-leaf with White rust (Cystopus candidus). |
| 〃 | 200. | Conidia of White rust (Cystopus candidus) × 360. |
| 〃 | 201. | Portion of Goatsbeard-leaf with White rust (Cystopus cubicus). |
| 〃 | 202. | Conidia of Goatsbeard white rust (Cystopus cubicus) × 360. |
| 〃 | 203. | Portion of Mycelium producing the first of a chain of conidia × 400. |
| 〃 | 204. | Mycelium of White rust with sucker-like processes × 360. |
| 〃 | 205. | Mycelium of White rust with nascent oogonia × 360. |
| 〃 | 206. | Oogonium of Crucifer white rust (Cystopus candidus) × 400 (De Bary). |
| 〃 | 207. | The same, further advanced, ruptured, with zoospores, × 400. |
| 〃 | 208. | Free zoospores of White rust, with their ciliæ, × 400 (De Bary). |
| 〃 | 209. | Resting zoospores in germination × 400 (De Bary). |
| 〃 | 210. | Oogonium of Goatsbeard white rust (Cystopus cubicus) × 400 (De Bary). |
| 〃 | 211. | Oogonium of Sandwort mould (Peronospora arenariæ) × 400 (De Bary). |
| 〃 | 212. | Oogonium of Pea mould (Peronospora viciæ) × 400 (De Bary). |
| 〃 | 213. | Oogonium of Veronica mould (Peronospora grisea) × 400 (De Bary). |
| 〃 | 214. | Oogonium of Spinach mould (Peronospora effusa) × 400 (De Bary). |
| 〃 | 215. | Leaf of Goosefoot with mould (Peronospora effusa). |
| [XI.] | 216. | Conceptacle of Hop mildew (Sphærotheca castagnei) × 80. |
| 〃 | 217. | Conceptacle of Rose blight (Sphærotheca pannosa) × 80. |
| 〃 | 218. | Sporangium of Sphærotheca pannosa × highly. |
| 〃 | 219. | Conceptacle of Hazel blight (Phyllactinia guttata) × 80. |
| 〃 | 220. | Sporangium of Phyllactinia guttata × highly. |
| 〃 | 221. | Portion of leaf of Willow with Willow blight (Uncinula adunca). |
| 〃 | 222. | Conceptacle of Willow blight (Uncinula adunca) × 80. |
| 〃 | 223. | Tip of one of the appendages × highly. |
| 〃 | 224. | Sporangium of Willow blight (Uncinula adunca) × highly. |
| 〃 | 225. | Conceptacle of Maple blight (Uncinula bicornis) × 80. |
| 〃 | 226. | Tip of one of the appendages of Uncinula bicornis × highly. |
| 〃 | 227. | Furcate tip of one of the appendages of the Maple blight (Uncinula bicornis) × highly. |
| 〃 | 228. | Sporangium of Uncinula bicornis × highly. |
| 〃 | 229. | Leaf of Berberry with Berberry blight (Microsphæria Berberidis). |
| 〃 | 230. | Conceptacle of Berberry blight × 80. |
| 〃 | 231. | Tip of one of the appendages of Berberry blight (Microsphæria Berberidis) × highly. |
| 〃 | 232. | Sporangium of Berberry blight × highly. |
| 〃 | 233. | Tip of appendage of a continental species of blight (Microsphæria Ehrenbergii) × highly (Léveillé). |
| 〃 | 234. | Tip of appendage of Alder blight (Microsphæria penicillata) × highly. |
| 〃 | 235. | Portion of Grass leaf with blight (Oidium monilioides). |
| 〃 | 236. | Tuft of conidia of Oidium monilioides × 120. |
| 〃 | 237. | Leaflet of Garden Pea with Pea blight (Erysiphe Martii). |
| 〃 | 238. | Conceptacle of Pea blight (Erysiphe Martii) × 80. |
| 〃 | 239. | Sporangium of Erysiphe Martii × highly. |
| 〃 | 240. | Conceptacle of Buttercup blight (Erysiphe communis) × 80. |
| 〃 | 241. | Sporangium of Erysiphe communis × highly. |
| 〃 | 242. | Sucker from the mycelium of Erysiphe communis, magnified. |
| [XII.] | 243. | Conceptacle of Mealy Guelder-rose blight (Microsphæria Hedwigii) × 80. |
| 〃 | 244. | Sporangium of same, containing spores, × highly. |
| 〃 | 245. | Conceptacle of Cornel blight (Erysiphe tortilis) × 80. |
| 〃 | 246. | Sporangium of same, containing spores, × highly. |
| 〃 | 247. | Tip of appendage of Microsphæria Hedwigii × highly. |
| 〃 | 248. | Sporangium of Mugwort blight (Erysiphe Linkii), containing spores, × highly. |
| 〃 | 249. | Conceptacle of Mugwort blight (Erysiphe Linkii) × 80. |
| 〃 | 250. | Sporangium and spores of Plantain blight (Erysiphe lamprocarpa) × highly. |
| 〃 | 251. | Conceptacle of Plantain blight (Erysiphe lamprocarpa) × 80. |
| 〃 | 252. | Conceptacle of Paper bristle-mould (Chætomium chartarum) magnified. |
| 〃 | 253. | Sporidium of the same, further magnified. |
| 〃 | 254. | Conceptacle of Paper mildew (Ascotricha chartarum) magnified (Berkeley). |
| 〃 | 255. | Portion of thread of same with conidia, further magnified (Berkeley). |
| 〃 | 256. | Sporangium of same, containing spores (Berkeley). |
| 〃 | 257. | Piece of straw with Bristle mould (Chætomium elatum). |
| 〃 | 258. | Conceptacle of same, slightly magnified. |
| 〃 | 259. | Section of same, further magnified. |
| 〃 | 260. | Dead leaf over-run with Herbarium mildew (Eurotium herbariorum). |
| 〃 | 261. | Conceptacles of the same, seated on their mycelium, magnified. |
| [XIII.] | 262. | Fertile thread of Turnip mould (Peronospora parasitica). |
| 〃 | 263. | Fertile thread of Onion mould (Peronospora Schleideniana). |
| [XIV.] | 264. | Fertile thread of Potato mould (Peronospora infestans). |
| 〃 | 265. | Fertile thread of Lettuce mould (Peronospora gangliformis). |
| [XV.] | 266. | Fertile thread of Pea mould (Peronospora Viciæ). |
| 〃 | 267. | Fertile thread of Anemone mould (Peronospora curta). |
| [XVI.] | 268. | Fertile thread of Sandwort mould (Peronospora arenariæ). |
| 〃 | 269. | Fertile thread of Dock mould (Peronospora obliqua) × 320. |
INDEX.
PAGE